Add authentication and tracking features with API integration

- Implemented user authentication with signup and signin functionality. - Created a context for managing authentication state. - Added protected routes for accessing the dashboard and tracker pages. - Developed a tracker page for logging cigarette usage with optional notes and timestamps. - Introduced a statistics page to visualize daily smoking habits using charts. - Integrated Axios for API requests and error handling. - Updated package dependencies including React Hook Form and Zod for form validation. - Enhanced UI components for better user experience with Chakra UI. - Added routing for authentication and tracking pages.
2025-11-17 13:53:25 +03:00 · 2025-11-17 13:53:25 +03:00 · debd28905a
commit debd28905a
parent c3eab8bcac
19 changed files with 1947 additions and 26 deletions
--- a/package-lock.json
+++ b/package-lock.json
@ -13,18 +13,24 @@
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@ -2501,6 +2519,42 @@
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+        "node_modules/react-hook-form": {
+            "version": "7.66.0",
+            "resolved": "https://registry.npmjs.org/react-hook-form/-/react-hook-form-7.66.0.tgz",
+            "integrity": "sha512-xXBqsWGKrY46ZqaHDo+ZUYiMUgi8suYu5kdrS20EG8KiL7VRQitEbNjm+UcrDYrNi1YLyfpmAeGjCZYXLT9YBw==",
+            "license": "MIT",
+            "engines": {
+                "node": ">=18.0.0"
+            },
+            "funding": {
+                "type": "opencollective",
+                "url": "https://opencollective.com/react-hook-form"
+            },
+            "peerDependencies": {
+                "react": "^16.8.0 || ^17 || ^18 || ^19"
+            }
+        },
        "node_modules/react-i18next": {
            "version": "15.7.4",
            "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-15.7.4.tgz",
@ -9481,6 +9803,29 @@
            "integrity": "sha512-24e6ynE2H+OKt4kqsOvNd8kBpV65zoxbA4BVsEOB3ARVWQki/DHzaUoC5KuON/BiccDaCCTZBuOcfZs70kR8bQ==",
            "license": "MIT"
        },
+        "node_modules/react-redux": {
+            "version": "9.2.0",
+            "resolved": "https://registry.npmjs.org/react-redux/-/react-redux-9.2.0.tgz",
+            "integrity": "sha512-ROY9fvHhwOD9ySfrF0wmvu//bKCQ6AeZZq1nJNtbDC+kk5DuSuNX/n6YWYF/SYy7bSba4D4FSz8DJeKY/S/r+g==",
+            "license": "MIT",
+            "dependencies": {
+                "@types/use-sync-external-store": "^0.0.6",
+                "use-sync-external-store": "^1.4.0"
+            },
+            "peerDependencies": {
+                "@types/react": "^18.2.25 || ^19",
+                "react": "^18.0 || ^19",
+                "redux": "^5.0.0"
+            },
+            "peerDependenciesMeta": {
+                "@types/react": {
+                    "optional": true
+                },
+                "redux": {
+                    "optional": true
+                }
+            }
+        },
        "node_modules/react-router": {
            "version": "6.23.1",
            "resolved": "https://registry.npmjs.org/react-router/-/react-router-6.23.1.tgz",
@ -9537,6 +9882,46 @@
                "url": "https://github.com/sponsors/jonschlinkert"
            }
        },
+        "node_modules/recharts": {
+            "version": "3.4.1",
+            "resolved": "https://registry.npmjs.org/recharts/-/recharts-3.4.1.tgz",
+            "integrity": "sha512-35kYg6JoOgwq8sE4rhYkVWwa6aAIgOtT+Ob0gitnShjwUwZmhrmy7Jco/5kJNF4PnLXgt9Hwq+geEMS+WrjU1g==",
+            "license": "MIT",
+            "workspaces": [
+                "www"
+            ],
+            "dependencies": {
+                "@reduxjs/toolkit": "1.x.x || 2.x.x",
+                "clsx": "^2.1.1",
+                "decimal.js-light": "^2.5.1",
+                "es-toolkit": "^1.39.3",
+                "eventemitter3": "^5.0.1",
+                "immer": "^10.1.1",
+                "react-redux": "8.x.x || 9.x.x",
+                "reselect": "5.1.1",
+                "tiny-invariant": "^1.3.3",
+                "use-sync-external-store": "^1.2.2",
+                "victory-vendor": "^37.0.2"
+            },
+            "engines": {
+                "node": ">=18"
+            },
+            "peerDependencies": {
+                "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+                "react-dom": "^16.0.0 || ^17.0.0 || ^18.0.0 || ^19.0.0",
+                "react-is": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+            }
+        },
+        "node_modules/recharts/node_modules/immer": {
+            "version": "10.2.0",
+            "resolved": "https://registry.npmjs.org/immer/-/immer-10.2.0.tgz",
+            "integrity": "sha512-d/+XTN3zfODyjr89gM3mPq1WNX2B8pYsu7eORitdwyA2sBubnTl3laYlBk4sXY5FUa5qTZGBDPJICVbvqzjlbw==",
+            "license": "MIT",
+            "funding": {
+                "type": "opencollective",
+                "url": "https://opencollective.com/immer"
+            }
+        },
        "node_modules/recursive-readdir": {
            "version": "2.2.3",
            "resolved": "https://registry.npmjs.org/recursive-readdir/-/recursive-readdir-2.2.3.tgz",
@ -9583,6 +9968,21 @@
                "recursive-watch": "bin.js"
            }
        },
+        "node_modules/redux": {
+            "version": "5.0.1",
+            "resolved": "https://registry.npmjs.org/redux/-/redux-5.0.1.tgz",
+            "integrity": "sha512-M9/ELqF6fy8FwmkpnF0S3YKOqMyoWJ4+CS5Efg2ct3oY9daQvd/Pc71FpGZsVsbl3Cpb+IIcjBDUnnyBdQbq4w==",
+            "license": "MIT"
+        },
+        "node_modules/redux-thunk": {
+            "version": "3.1.0",
+            "resolved": "https://registry.npmjs.org/redux-thunk/-/redux-thunk-3.1.0.tgz",
+            "integrity": "sha512-NW2r5T6ksUKXCabzhL9z+h206HQw/NJkcLm1GPImRQ8IzfXwRGqjVhKJGauHirT0DAuyy6hjdnMZaRoAcy0Klw==",
+            "license": "MIT",
+            "peerDependencies": {
+                "redux": "^5.0.0"
+            }
+        },
        "node_modules/reflect.getprototypeof": {
            "version": "1.0.10",
            "resolved": "https://registry.npmjs.org/reflect.getprototypeof/-/reflect.getprototypeof-1.0.10.tgz",
@ -9687,6 +10087,12 @@
                "node": ">=0.10.0"
            }
        },
+        "node_modules/reselect": {
+            "version": "5.1.1",
+            "resolved": "https://registry.npmjs.org/reselect/-/reselect-5.1.1.tgz",
+            "integrity": "sha512-K/BG6eIky/SBpzfHZv/dd+9JBFiS4SWV7FIujVyJRux6e45+73RaUHXLmIR1f7WOMaQ0U1km6qwklRQxpJJY0w==",
+            "license": "MIT"
+        },
        "node_modules/resolve": {
            "version": "1.22.11",
            "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.11.tgz",
@ -10620,6 +11026,12 @@
                "tslib": "^2"
            }
        },
+        "node_modules/tiny-invariant": {
+            "version": "1.3.3",
+            "resolved": "https://registry.npmjs.org/tiny-invariant/-/tiny-invariant-1.3.3.tgz",
+            "integrity": "sha512-+FbBPE1o9QAYvviau/qC5SE3caw21q3xkvWKBtja5vgqOWIHHJ3ioaq1VPfn/Szqctz2bU/oYeKd9/z5BL+PVg==",
+            "license": "MIT"
+        },
        "node_modules/to-regex-range": {
            "version": "5.0.1",
            "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
@ -11117,6 +11529,15 @@
                "punycode": "^2.1.0"
            }
        },
+        "node_modules/use-sync-external-store": {
+            "version": "1.6.0",
+            "resolved": "https://registry.npmjs.org/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz",
+            "integrity": "sha512-Pp6GSwGP/NrPIrxVFAIkOQeyw8lFenOHijQWkUTrDvrF4ALqylP2C/KCkeS9dpUM3KvYRQhna5vt7IL95+ZQ9w==",
+            "license": "MIT",
+            "peerDependencies": {
+                "react": "^16.8.0 || ^17.0.0 || ^18.0.0 || ^19.0.0"
+            }
+        },
        "node_modules/util-deprecate": {
            "version": "1.0.2",
            "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@ -11141,6 +11562,28 @@
                "node": ">= 0.8"
            }
        },
+        "node_modules/victory-vendor": {
+            "version": "37.3.6",
+            "resolved": "https://registry.npmjs.org/victory-vendor/-/victory-vendor-37.3.6.tgz",
+            "integrity": "sha512-SbPDPdDBYp+5MJHhBCAyI7wKM3d5ivekigc2Dk2s7pgbZ9wIgIBYGVw4zGHBml/qTFbexrofXW6Gu4noGxrOwQ==",
+            "license": "MIT AND ISC",
+            "dependencies": {
+                "@types/d3-array": "^3.0.3",
+                "@types/d3-ease": "^3.0.0",
+                "@types/d3-interpolate": "^3.0.1",
+                "@types/d3-scale": "^4.0.2",
+                "@types/d3-shape": "^3.1.0",
+                "@types/d3-time": "^3.0.0",
+                "@types/d3-timer": "^3.0.0",
+                "d3-array": "^3.1.6",
+                "d3-ease": "^3.0.1",
+                "d3-interpolate": "^3.0.1",
+                "d3-scale": "^4.0.2",
+                "d3-shape": "^3.1.0",
+                "d3-time": "^3.0.0",
+                "d3-timer": "^3.0.1"
+            }
+        },
        "node_modules/void-elements": {
            "version": "3.1.0",
            "resolved": "https://registry.npmjs.org/void-elements/-/void-elements-3.1.0.tgz",
@ -11637,6 +12080,15 @@
            "funding": {
                "url": "https://github.com/sponsors/sindresorhus"
            }
+        },
+        "node_modules/zod": {
+            "version": "4.1.12",
+            "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.12.tgz",
+            "integrity": "sha512-JInaHOamG8pt5+Ey8kGmdcAcg3OL9reK8ltczgHTAwNhMys/6ThXHityHxVV2p3fkw/c+MAvBHFVYHFZDmjMCQ==",
+            "license": "MIT",
+            "funding": {
+                "url": "https://github.com/sponsors/colinhacks"
+            }
        }
    }
 }
--- a/package.json
+++ b/package.json
@ -24,17 +24,23 @@
        "@chakra-ui/react": "^3.2.0",
        "@emotion/react": "^11.13.5",
        "@eslint/js": "^9.11.0",
+        "@hookform/resolvers": "^5.2.2",
        "@stylistic/eslint-plugin": "^2.8.0",
        "@types/node": "^22.19.1",
        "@types/react": "^18.3.12",
        "@types/react-dom": "^18.3.1",
+        "axios": "^1.13.2",
+        "date-fns": "^4.1.0",
        "eslint": "^9.11.0",
        "eslint-plugin-react": "^7.36.1",
        "express": "^4.19.2",
        "globals": "^15.9.0",
        "react": "^18.3.1",
        "react-dom": "^18.3.1",
+        "react-hook-form": "^7.66.0",
        "react-router-dom": "^6.23.1",
-        "typescript-eslint": "^8.6.0"
+        "recharts": "^3.4.1",
+        "typescript-eslint": "^8.6.0",
+        "zod": "^4.1.12"
    }
 }
--- a/src/data/urls.ts
+++ b/src/data/urls.ts
@ -12,4 +12,6 @@ export const URLs = {
    url: makeUrl(navs[`link.${pkg.name}.auth`]),
    isOn: Boolean(navs[`link.${pkg.name}.auth`])
  },
+  tracker: makeUrl('/tracker'),
+  stats: makeUrl('/stats'),
 }
--- a/src/api/client.ts
+++ b/src/api/client.ts
@ -0,0 +1,103 @@
+import axios, { AxiosError } from 'axios'
+import { getConfigValue } from '@brojs/cli'
+
+import type {
+  ApiResponse,
+  SignUpRequest,
+  SignInRequest,
+  SignInResponse,
+  LogCigaretteRequest,
+  Cigarette,
+  GetCigarettesParams,
+  DailyStat,
+  GetDailyStatsParams,
+} from '../types/api'
+
+const TOKEN_KEY = 'smokeToken'
+
+// Get API base URL from config
+const baseURL = String(getConfigValue('smoke-tracker.api') || '/api')
+
+// Create axios instance
+export const apiClient = axios.create({
+  baseURL,
+  headers: {
+    'Content-Type': 'application/json',
+  },
+})
+
+// Request interceptor to add JWT token
+apiClient.interceptors.request.use(
+  (config) => {
+    const token = localStorage.getItem(TOKEN_KEY)
+    if (token) {
+      config.headers.Authorization = `Bearer ${token}`
+    }
+    return config
+  },
+  (error) => {
+    return Promise.reject(error)
+  }
+)
+
+// Response interceptor for error handling
+apiClient.interceptors.response.use(
+  (response) => response,
+  (error: AxiosError) => {
+    if (error.response?.status === 401) {
+      // Token expired or invalid
+      localStorage.removeItem(TOKEN_KEY)
+      // Optionally redirect to login page
+      if (window.location.pathname !== '/auth/signin') {
+        window.location.href = '/smoke-tracker/auth/signin'
+      }
+    }
+    return Promise.reject(error)
+  }
+)
+
+// Auth API
+export const authApi = {
+  signup: async (data: SignUpRequest): Promise<ApiResponse<{ ok: boolean }>> => {
+    const response = await apiClient.post('/auth/signup', data)
+    return response.data
+  },
+
+  signin: async (data: SignInRequest): Promise<ApiResponse<SignInResponse>> => {
+    const response = await apiClient.post('/auth/signin', data)
+    if (response.data.success) {
+      localStorage.setItem(TOKEN_KEY, response.data.body.token)
+    }
+    return response.data
+  },
+
+  signout: () => {
+    localStorage.removeItem(TOKEN_KEY)
+  },
+
+  getToken: () => {
+    return localStorage.getItem(TOKEN_KEY)
+  },
+}
+
+// Cigarettes API
+export const cigarettesApi = {
+  log: async (data: LogCigaretteRequest): Promise<ApiResponse<Cigarette>> => {
+    const response = await apiClient.post('/cigarettes', data)
+    return response.data
+  },
+
+  getAll: async (params?: GetCigarettesParams): Promise<ApiResponse<Cigarette[]>> => {
+    const response = await apiClient.get('/cigarettes', { params })
+    return response.data
+  },
+}
+
+// Stats API
+export const statsApi = {
+  getDaily: async (params?: GetDailyStatsParams): Promise<ApiResponse<DailyStat[]>> => {
+    const response = await apiClient.get('/stats/daily', { params })
+    return response.data
+  },
+}
+
--- a/src/app.tsx
+++ b/src/app.tsx
@ -3,12 +3,15 @@ import { BrowserRouter } from 'react-router-dom'

 import { Dashboard } from './dashboard'
 import { Provider } from './theme'
+import { AuthProvider } from './contexts/AuthContext'

 const App = () => {
  return (
    <BrowserRouter>
      <Provider>
-        <Dashboard />
+        <AuthProvider>
+          <Dashboard />
+        </AuthProvider>
      </Provider>
    </BrowserRouter>
  )
--- a/src/components/ProtectedRoute.tsx
+++ b/src/components/ProtectedRoute.tsx
@ -0,0 +1,23 @@
+import React, { ReactNode } from 'react'
+import { Navigate } from 'react-router-dom'
+import { useAuth } from '../contexts/AuthContext'
+import { URLs } from '../__data__/urls'
+
+interface ProtectedRouteProps {
+  children: ReactNode
+}
+
+export const ProtectedRoute: React.FC<ProtectedRouteProps> = ({ children }) => {
+  const { isAuthenticated, isLoading } = useAuth()
+
+  if (isLoading) {
+    return <div>Loading...</div>
+  }
+
+  if (!isAuthenticated) {
+    return <Navigate to={URLs.auth.url} replace />
+  }
+
+  return <>{children}</>
+}
+
--- a/src/components/ui/field.tsx
+++ b/src/components/ui/field.tsx
@ -0,0 +1,31 @@
+import { Field as ChakraField } from '@chakra-ui/react'
+import * as React from 'react'
+
+export interface FieldProps extends ChakraField.RootProps {
+  label?: React.ReactNode
+  helperText?: React.ReactNode
+  errorText?: React.ReactNode
+  optionalText?: React.ReactNode
+}
+
+export const Field = React.forwardRef<HTMLDivElement, FieldProps>(
+  function Field(props, ref) {
+    const { label, children, helperText, errorText, optionalText, ...rest } = props
+    return (
+      <ChakraField.Root ref={ref} {...rest}>
+        {label && (
+          <ChakraField.Label>
+            {label}
+            <ChakraField.RequiredIndicator />
+          </ChakraField.Label>
+        )}
+        {children}
+        {helperText && (
+          <ChakraField.HelperText>{helperText}</ChakraField.HelperText>
+        )}
+        {errorText && <ChakraField.ErrorText>{errorText}</ChakraField.ErrorText>}
+      </ChakraField.Root>
+    )
+  }
+)
+
--- a/src/contexts/AuthContext.tsx
+++ b/src/contexts/AuthContext.tsx
@ -0,0 +1,85 @@
+import React, { createContext, useContext, useState, useEffect, ReactNode } from 'react'
+import { authApi } from '../api/client'
+import type { User, SignUpRequest, SignInRequest } from '../types/api'
+
+interface AuthContextType {
+  user: User | null
+  isAuthenticated: boolean
+  isLoading: boolean
+  signin: (data: SignInRequest) => Promise<void>
+  signup: (data: SignUpRequest) => Promise<void>
+  signout: () => void
+}
+
+const AuthContext = createContext<AuthContextType | undefined>(undefined)
+
+interface AuthProviderProps {
+  children: ReactNode
+}
+
+export const AuthProvider: React.FC<AuthProviderProps> = ({ children }) => {
+  const [user, setUser] = useState<User | null>(null)
+  const [isLoading, setIsLoading] = useState(true)
+
+  useEffect(() => {
+    // Check if user is already logged in (has valid token)
+    const token = authApi.getToken()
+    if (token) {
+      // In a real app, you might want to verify the token with the backend
+      // For now, we just check if token exists
+      setIsLoading(false)
+      // We don't have user data stored, so user will be set on first authenticated request
+    } else {
+      setIsLoading(false)
+    }
+  }, [])
+
+  const signin = async (data: SignInRequest) => {
+    try {
+      const response = await authApi.signin(data)
+      if (response.success) {
+        setUser(response.body.user)
+      } else {
+        throw new Error('Sign in failed')
+      }
+    } catch (error) {
+      throw error
+    }
+  }
+
+  const signup = async (data: SignUpRequest) => {
+    try {
+      const response = await authApi.signup(data)
+      if (!response.success) {
+        throw new Error('Sign up failed')
+      }
+    } catch (error) {
+      throw error
+    }
+  }
+
+  const signout = () => {
+    authApi.signout()
+    setUser(null)
+  }
+
+  const value: AuthContextType = {
+    user,
+    isAuthenticated: !!authApi.getToken(),
+    isLoading,
+    signin,
+    signup,
+    signout,
+  }
+
+  return <AuthContext.Provider value={value}>{children}</AuthContext.Provider>
+}
+
+export const useAuth = (): AuthContextType => {
+  const context = useContext(AuthContext)
+  if (context === undefined) {
+    throw new Error('useAuth must be used within an AuthProvider')
+  }
+  return context
+}
+
--- a/src/dashboard.tsx
+++ b/src/dashboard.tsx
@ -3,6 +3,10 @@ import { Route, Routes } from 'react-router-dom'

 import { URLs } from './__data__/urls'
 import { MainPage } from './pages'
+import { SignInPage, SignUpPage } from './pages/auth'
+import { TrackerPage } from './pages/tracker'
+import { StatsPage } from './pages/stats'
+import { ProtectedRoute } from './components/ProtectedRoute'

 const PageWrapper = ({ children }: React.PropsWithChildren) => (
  <Suspense fallback={<div>Loading...</div>}>{children}</Suspense>
@ -15,7 +19,45 @@ export const Dashboard = () => {
        path={URLs.baseUrl}
        element={
          <PageWrapper>
-            <MainPage />
+            <ProtectedRoute>
+              <MainPage />
+            </ProtectedRoute>
+          </PageWrapper>
+        }
+      />
+      <Route
+        path={URLs.auth.url}
+        element={
+          <PageWrapper>
+            <SignInPage />
+          </PageWrapper>
+        }
+      />
+      <Route
+        path={URLs.baseUrl + '/auth/signup'}
+        element={
+          <PageWrapper>
+            <SignUpPage />
+          </PageWrapper>
+        }
+      />
+      <Route
+        path={URLs.tracker}
+        element={
+          <PageWrapper>
+            <ProtectedRoute>
+              <TrackerPage />
+            </ProtectedRoute>
+          </PageWrapper>
+        }
+      />
+      <Route
+        path={URLs.stats}
+        element={
+          <PageWrapper>
+            <ProtectedRoute>
+              <StatsPage />
+            </ProtectedRoute>
          </PageWrapper>
        }
      />
--- a/src/pages/auth/index.ts
+++ b/src/pages/auth/index.ts
@ -0,0 +1,3 @@
+export { SignInPage } from './signin'
+export { SignUpPage } from './signup'
+
--- a/src/pages/auth/signin.tsx
+++ b/src/pages/auth/signin.tsx
@ -0,0 +1,143 @@
+import React, { useState } from 'react'
+import { useForm } from 'react-hook-form'
+import { zodResolver } from '@hookform/resolvers/zod'
+import { z } from 'zod'
+import { Link, useNavigate } from 'react-router-dom'
+import {
+  Box,
+  Button,
+  Input,
+  VStack,
+  Text,
+  Heading,
+  Card,
+} from '@chakra-ui/react'
+import { Field } from '../../components/ui/field'
+import { useAuth } from '../../contexts/AuthContext'
+import { URLs } from '../../__data__/urls'
+
+const signinSchema = z.object({
+  login: z.string().min(1, 'Логин обязателен'),
+  password: z.string().min(1, 'Пароль обязателен'),
+})
+
+type SigninFormData = z.infer<typeof signinSchema>
+
+export const SignInPage: React.FC = () => {
+  const { signin } = useAuth()
+  const navigate = useNavigate()
+  const [error, setError] = useState<string | null>(null)
+  const [isSubmitting, setIsSubmitting] = useState(false)
+
+  const {
+    register,
+    handleSubmit,
+    formState: { errors },
+  } = useForm<SigninFormData>({
+    resolver: zodResolver(signinSchema),
+  })
+
+  const onSubmit = async (data: SigninFormData) => {
+    setIsSubmitting(true)
+    setError(null)
+
+    try {
+      await signin(data)
+      navigate(URLs.baseUrl)
+    } catch (err: any) {
+      console.error('Signin error:', err)
+      console.error('Error response:', err?.response)
+      
+      let errorMessage = 'Ошибка входа'
+      
+      if (err?.response?.data?.errors) {
+        errorMessage = err.response.data.errors
+      } else if (err?.response?.data?.message) {
+        errorMessage = err.response.data.message
+      } else if (err?.message) {
+        errorMessage = err.message
+      }
+      
+      setError(errorMessage)
+    } finally {
+      setIsSubmitting(false)
+    }
+  }
+
+  return (
+    <Box
+      minH="100vh"
+      display="flex"
+      alignItems="center"
+      justifyContent="center"
+      bg="gray.50"
+      p={4}
+    >
+      <Card.Root maxW="md" w="full" p={8}>
+        <Card.Body>
+          <VStack gap={6} align="stretch">
+            <Heading size="lg" textAlign="center">
+              Вход в систему
+            </Heading>
+
+            <form onSubmit={handleSubmit(onSubmit)}>
+              <VStack gap={4} align="stretch">
+                <Field
+                  label="Логин"
+                  invalid={!!errors.login}
+                  errorText={errors.login?.message}
+                >
+                  <Input
+                    {...register('login')}
+                    placeholder="Введите логин"
+                    size="lg"
+                  />
+                </Field>
+
+                <Field
+                  label="Пароль"
+                  invalid={!!errors.password}
+                  errorText={errors.password?.message}
+                >
+                  <Input
+                    {...register('password')}
+                    type="password"
+                    placeholder="Введите пароль"
+                    size="lg"
+                  />
+                </Field>
+
+                {error && (
+                  <Text color="red.500" fontSize="sm">
+                    {error}
+                  </Text>
+                )}
+
+                <Button
+                  type="submit"
+                  colorScheme="blue"
+                  size="lg"
+                  w="full"
+                  loading={isSubmitting}
+                  disabled={isSubmitting}
+                >
+                  Войти
+                </Button>
+
+                <Text textAlign="center" fontSize="sm">
+                  Нет аккаунта?{' '}
+                  <Link to={URLs.baseUrl + '/auth/signup'}>
+                    <Text as="span" color="blue.500" textDecoration="underline">
+                      Зарегистрироваться
+                    </Text>
+                  </Link>
+                </Text>
+              </VStack>
+            </form>
+          </VStack>
+        </Card.Body>
+      </Card.Root>
+    </Box>
+  )
+}
+
--- a/src/pages/auth/signup.tsx
+++ b/src/pages/auth/signup.tsx
@ -0,0 +1,161 @@
+import React, { useState } from 'react'
+import { useForm } from 'react-hook-form'
+import { zodResolver } from '@hookform/resolvers/zod'
+import { z } from 'zod'
+import { Link, useNavigate } from 'react-router-dom'
+import {
+  Box,
+  Button,
+  Input,
+  VStack,
+  Text,
+  Heading,
+  Card,
+} from '@chakra-ui/react'
+import { Field } from '../../components/ui/field'
+import { useAuth } from '../../contexts/AuthContext'
+import { URLs } from '../../__data__/urls'
+
+const signupSchema = z.object({
+  login: z.string().min(3, 'Логин должен содержать минимум 3 символа'),
+  password: z.string().min(4, 'Пароль должен содержать минимум 4 символов'),
+  confirmPassword: z.string(),
+}).refine((data) => data.password === data.confirmPassword, {
+  message: 'Пароли не совпадают',
+  path: ['confirmPassword'],
+})
+
+type SignupFormData = z.infer<typeof signupSchema>
+
+export const SignUpPage: React.FC = () => {
+  const { signup } = useAuth()
+  const navigate = useNavigate()
+  const [error, setError] = useState<string | null>(null)
+  const [isSubmitting, setIsSubmitting] = useState(false)
+
+  const {
+    register,
+    handleSubmit,
+    formState: { errors },
+  } = useForm<SignupFormData>({
+    resolver: zodResolver(signupSchema),
+  })
+
+  const onSubmit = async (data: SignupFormData) => {
+    setIsSubmitting(true)
+    setError(null)
+
+    try {
+      await signup({ login: data.login, password: data.password })
+      // After successful signup, redirect to signin
+      navigate(URLs.auth.url)
+    } catch (err: any) {
+      console.error('Signup error:', err)
+      console.error('Error response:', err?.response)
+      
+      let errorMessage = 'Ошибка регистрации'
+      
+      if (err?.response?.data?.errors) {
+        errorMessage = err.response.data.errors
+      } else if (err?.response?.data?.message) {
+        errorMessage = err.response.data.message
+      } else if (err?.message) {
+        errorMessage = err.message
+      }
+      
+      setError(errorMessage)
+    } finally {
+      setIsSubmitting(false)
+    }
+  }
+
+  return (
+    <Box
+      minH="100vh"
+      display="flex"
+      alignItems="center"
+      justifyContent="center"
+      bg="gray.50"
+      p={4}
+    >
+      <Card.Root maxW="md" w="full" p={8}>
+        <Card.Body>
+          <VStack gap={6} align="stretch">
+            <Heading size="lg" textAlign="center">
+              Регистрация
+            </Heading>
+
+            <form onSubmit={handleSubmit(onSubmit)}>
+              <VStack gap={4} align="stretch">
+                <Field
+                  label="Логин"
+                  invalid={!!errors.login}
+                  errorText={errors.login?.message}
+                >
+                  <Input
+                    {...register('login')}
+                    placeholder="Введите логин"
+                    size="lg"
+                  />
+                </Field>
+
+                <Field
+                  label="Пароль"
+                  invalid={!!errors.password}
+                  errorText={errors.password?.message}
+                >
+                  <Input
+                    {...register('password')}
+                    type="password"
+                    placeholder="Введите пароль"
+                    size="lg"
+                  />
+                </Field>
+
+                <Field
+                  label="Подтверждение пароля"
+                  invalid={!!errors.confirmPassword}
+                  errorText={errors.confirmPassword?.message}
+                >
+                  <Input
+                    {...register('confirmPassword')}
+                    type="password"
+                    placeholder="Повторите пароль"
+                    size="lg"
+                  />
+                </Field>
+
+                {error && (
+                  <Text color="red.500" fontSize="sm">
+                    {error}
+                  </Text>
+                )}
+
+                <Button
+                  type="submit"
+                  colorScheme="blue"
+                  size="lg"
+                  w="full"
+                  loading={isSubmitting}
+                  disabled={isSubmitting}
+                >
+                  Зарегистрироваться
+                </Button>
+
+                <Text textAlign="center" fontSize="sm">
+                  Уже есть аккаунт?{' '}
+                  <Link to={URLs.auth.url}>
+                    <Text as="span" color="blue.500" textDecoration="underline">
+                      Войти
+                    </Text>
+                  </Link>
+                </Text>
+              </VStack>
+            </form>
+          </VStack>
+        </Card.Body>
+      </Card.Root>
+    </Box>
+  )
+}
+
--- a/src/pages/main/main.tsx
+++ b/src/pages/main/main.tsx
@ -1,28 +1,117 @@
 import React from 'react'
-import { Grid, GridItem } from '@chakra-ui/react'
+import { Link, useNavigate } from 'react-router-dom'
+import {
+  Box,
+  Button,
+  VStack,
+  HStack,
+  Text,
+  Heading,
+  Card,
+  Container,
+} from '@chakra-ui/react'
+import { useAuth } from '../../contexts/AuthContext'
+import { URLs } from '../../__data__/urls'

 export const MainPage = () => {
+  const { user, signout } = useAuth()
+  const navigate = useNavigate()
+
+  const handleSignout = () => {
+    signout()
+    navigate(URLs.auth.url)
+  }
+
  return (
-    <Grid
-      h="100%"
-      bgColor="gray.300"
-      templateAreas={{
-        md: `"header header"
-        "aside main"
-        "footer footer"`,
-        sm: `"header"
-        "main"
-        "aside"
-        "footer"`,
-      }}
-      gridTemplateRows={{ sm: '1fr', md: '50px 1fr 30px' }}
-      gridTemplateColumns={{ sm: '1fr', md: '150px 1fr' }}
-      gap={4}
-    >
-      <GridItem bgColor="green.100" gridArea="header">header</GridItem>
-      <GridItem bgColor="green.300" gridArea="aside">aside</GridItem>
-      <GridItem bgColor="green.600" gridArea="main" h="100vh">main</GridItem>
-      <GridItem bgColor="green.300" gridArea="footer">footer</GridItem>
-    </Grid>
+    <Box minH="100vh" bg="gray.50">
+      {/* Header */}
+      <Box bg="teal.500" color="white" py={4} px={8} shadow="md">
+        <Container maxW="6xl">
+          <HStack justify="space-between">
+            <Heading size="lg">Smoke Tracker</Heading>
+            <HStack gap={4}>
+              {user && (
+                <Text fontSize="sm">
+                  Пользователь: <strong>{user.login}</strong>
+                </Text>
+              )}
+              <Button colorScheme="whiteAlpha" variant="outline" onClick={handleSignout}>
+                Выйти
+              </Button>
+            </HStack>
+          </HStack>
+        </Container>
+      </Box>
+
+      {/* Main content */}
+      <Container maxW="6xl" py={12}>
+        <VStack gap={8}>
+          <VStack gap={2}>
+            <Heading size="2xl">Добро пожаловать в Smoke Tracker!</Heading>
+            <Text fontSize="lg" color="gray.600" textAlign="center">
+              Приложение для отслеживания привычки курения
+            </Text>
+          </VStack>
+
+          {/* Navigation cards */}
+          <Box w="full" mt={8}>
+            <VStack gap={6}>
+              <Card.Root w="full" bg="blue.50" _hover={{ shadow: 'lg', transform: 'translateY(-2px)' }} transition="all 0.2s">
+                <Card.Body p={8}>
+                  <VStack gap={4}>
+                    <Heading size="lg" color="blue.700">
+                      📝 Трекер
+                    </Heading>
+                    <Text textAlign="center" color="gray.700">
+                      Записывайте каждую выкуренную сигарету с временем и заметками
+                    </Text>
+                    <Link to={URLs.tracker}>
+                      <Button colorScheme="blue" size="lg" w="200px">
+                        Открыть трекер
+                      </Button>
+                    </Link>
+                  </VStack>
+                </Card.Body>
+              </Card.Root>
+
+              <Card.Root w="full" bg="teal.50" _hover={{ shadow: 'lg', transform: 'translateY(-2px)' }} transition="all 0.2s">
+                <Card.Body p={8}>
+                  <VStack gap={4}>
+                    <Heading size="lg" color="teal.700">
+                      📊 Статистика
+                    </Heading>
+                    <Text textAlign="center" color="gray.700">
+                      Просматривайте графики и анализируйте свою привычку курения
+                    </Text>
+                    <Link to={URLs.stats}>
+                      <Button colorScheme="teal" size="lg" w="200px">
+                        Посмотреть статистику
+                      </Button>
+                    </Link>
+                  </VStack>
+                </Card.Body>
+              </Card.Root>
+            </VStack>
+          </Box>
+
+          {/* Info section */}
+          <Card.Root w="full" mt={8}>
+            <Card.Body p={6}>
+              <VStack gap={4} align="start">
+                <Heading size="md">Возможности приложения:</Heading>
+                <VStack align="start" gap={2} pl={4}>
+                  <Text>✓ Быстрая запись сигарет одной кнопкой</Text>
+                  <Text>✓ Добавление заметок и произвольного времени</Text>
+                  <Text>✓ Просмотр истории всех записей</Text>
+                  <Text>✓ Дневная статистика с графиками</Text>
+                  <Text>✓ Анализ за любой период времени</Text>
+                  <Text>✓ Расчет среднего и максимального количества в день</Text>
+                </VStack>
+              </VStack>
+            </Card.Body>
+          </Card.Root>
+        </VStack>
+      </Container>
+    </Box>
  )
 }
--- a/src/pages/stats/index.ts
+++ b/src/pages/stats/index.ts
@ -0,0 +1,2 @@
+export { StatsPage } from './stats'
+
--- a/src/pages/stats/stats.tsx
+++ b/src/pages/stats/stats.tsx
@ -0,0 +1,258 @@
+import React, { useState, useEffect } from 'react'
+import { Link } from 'react-router-dom'
+import {
+  Box,
+  Button,
+  VStack,
+  HStack,
+  Text,
+  Heading,
+  Card,
+  Input,
+  Stack,
+} from '@chakra-ui/react'
+import { Field } from '../../components/ui/field'
+import {
+  LineChart,
+  Line,
+  XAxis,
+  YAxis,
+  CartesianGrid,
+  Tooltip,
+  Legend,
+  ResponsiveContainer,
+} from 'recharts'
+import { format, subDays, eachDayOfInterval, parseISO } from 'date-fns'
+import { statsApi } from '../../api/client'
+import { URLs } from '../../__data__/urls'
+import type { DailyStat } from '../../types/api'
+
+interface FilledDailyStat {
+  date: string
+  count: number
+  displayDate: string
+}
+
+export const StatsPage: React.FC = () => {
+  const [stats, setStats] = useState<FilledDailyStat[]>([])
+  const [isLoading, setIsLoading] = useState(false)
+  const [error, setError] = useState<string | null>(null)
+
+  // Default: last 30 days
+  const [fromDate, setFromDate] = useState(
+    format(subDays(new Date(), 30), 'yyyy-MM-dd')
+  )
+  const [toDate, setToDate] = useState(format(new Date(), 'yyyy-MM-dd'))
+
+  const fillMissingDates = (data: DailyStat[], from: string, to: string): FilledDailyStat[] => {
+    const start = parseISO(from)
+    const end = parseISO(to)
+    const allDates = eachDayOfInterval({ start, end })
+
+    return allDates.map((date) => {
+      const dateStr = format(date, 'yyyy-MM-dd')
+      const existing = data.find((d) => d.date === dateStr)
+
+      return {
+        date: dateStr,
+        count: existing ? existing.count : 0,
+        displayDate: format(date, 'dd.MM'),
+      }
+    })
+  }
+
+  const fetchStats = async () => {
+    setIsLoading(true)
+    setError(null)
+
+    try {
+      const fromISO = new Date(fromDate).toISOString()
+      const toISO = new Date(toDate + 'T23:59:59').toISOString()
+
+      const response = await statsApi.getDaily({
+        from: fromISO,
+        to: toISO,
+      })
+
+      if (response.success) {
+        const filled = fillMissingDates(response.body, fromDate, toDate)
+        setStats(filled)
+      }
+    } catch (err: any) {
+      const errorMessage =
+        err?.response?.data?.errors ||
+        err?.response?.data?.message ||
+        'Ошибка при загрузке статистики'
+      setError(errorMessage)
+    } finally {
+      setIsLoading(false)
+    }
+  }
+
+  useEffect(() => {
+    fetchStats()
+  }, [])
+
+  const totalCigarettes = stats.reduce((sum, stat) => sum + stat.count, 0)
+  const averagePerDay = stats.length > 0 ? (totalCigarettes / stats.length).toFixed(1) : 0
+  const maxPerDay = Math.max(...stats.map((s) => s.count), 0)
+
+  return (
+    <Box minH="100vh" bg="gray.50" p={8}>
+      <VStack gap={6} maxW="6xl" mx="auto">
+        <Heading size="2xl">Статистика курения</Heading>
+
+        <HStack w="full" gap={4}>
+          <Link to={URLs.baseUrl}>
+            <Button colorScheme="gray" variant="outline">
+              На главную
+            </Button>
+          </Link>
+          <Link to={URLs.baseUrl + '/tracker'}>
+            <Button colorScheme="blue" variant="outline">
+              Трекер
+            </Button>
+          </Link>
+        </HStack>
+
+        {/* Date range selector */}
+        <Card.Root w="full">
+          <Card.Body>
+            <VStack gap={4} align="stretch">
+              <Heading size="md">Выберите период</Heading>
+
+              <HStack gap={4} flexWrap="wrap">
+                <Field label="От">
+                  <Input
+                    type="date"
+                    value={fromDate}
+                    onChange={(e) => setFromDate(e.target.value)}
+                  />
+                </Field>
+
+                <Field label="До">
+                  <Input
+                    type="date"
+                    value={toDate}
+                    onChange={(e) => setToDate(e.target.value)}
+                  />
+                </Field>
+
+                <Box>
+                  <Button
+                    colorScheme="teal"
+                    onClick={fetchStats}
+                    loading={isLoading}
+                    disabled={isLoading}
+                    mt={7}
+                  >
+                    Обновить
+                  </Button>
+                </Box>
+              </HStack>
+            </VStack>
+          </Card.Body>
+        </Card.Root>
+
+        {error && (
+          <Card.Root w="full" bg="red.50" borderColor="red.500" borderWidth={2}>
+            <Card.Body>
+              <Text color="red.700" fontWeight="bold">
+                {error}
+              </Text>
+            </Card.Body>
+          </Card.Root>
+        )}
+
+        {/* Summary statistics */}
+        <Card.Root w="full">
+          <Card.Body>
+            <Stack direction={{ base: 'column', md: 'row' }} gap={6} justify="space-around">
+              <VStack>
+                <Text fontSize="3xl" fontWeight="bold" color="blue.500">
+                  {totalCigarettes}
+                </Text>
+                <Text fontSize="sm" color="gray.600">
+                  Всего сигарет
+                </Text>
+              </VStack>
+
+              <VStack>
+                <Text fontSize="3xl" fontWeight="bold" color="green.500">
+                  {averagePerDay}
+                </Text>
+                <Text fontSize="sm" color="gray.600">
+                  В среднем в день
+                </Text>
+              </VStack>
+
+              <VStack>
+                <Text fontSize="3xl" fontWeight="bold" color="orange.500">
+                  {maxPerDay}
+                </Text>
+                <Text fontSize="sm" color="gray.600">
+                  Максимум в день
+                </Text>
+              </VStack>
+            </Stack>
+          </Card.Body>
+        </Card.Root>
+
+        {/* Chart */}
+        <Card.Root w="full">
+          <Card.Body>
+            <VStack gap={4} align="stretch">
+              <Heading size="md">График по дням</Heading>
+
+              {isLoading ? (
+                <Text textAlign="center" py={8}>
+                  Загрузка...
+                </Text>
+              ) : stats.length === 0 ? (
+                <Text textAlign="center" py={8} color="gray.500">
+                  Нет данных за выбранный период
+                </Text>
+              ) : (
+                <Box w="full" h="400px">
+                  <ResponsiveContainer width="100%" height="100%">
+                    <LineChart
+                      data={stats}
+                      margin={{ top: 5, right: 30, left: 20, bottom: 5 }}
+                    >
+                      <CartesianGrid strokeDasharray="3 3" />
+                      <XAxis
+                        dataKey="displayDate"
+                        tick={{ fontSize: 12 }}
+                        interval="preserveStartEnd"
+                      />
+                      <YAxis allowDecimals={false} />
+                      <Tooltip
+                        contentStyle={{
+                          backgroundColor: '#fff',
+                          border: '1px solid #ccc',
+                          borderRadius: '4px',
+                        }}
+                        labelFormatter={(label) => `Дата: ${label}`}
+                        formatter={(value: number) => [value, 'Сигарет']}
+                      />
+                      <Legend />
+                      <Line
+                        type="monotone"
+                        dataKey="count"
+                        name="Количество сигарет"
+                        stroke="#3182ce"
+                        strokeWidth={2}
+                        activeDot={{ r: 8 }}
+                      />
+                    </LineChart>
+                  </ResponsiveContainer>
+                </Box>
+              )}
+            </VStack>
+          </Card.Body>
+        </Card.Root>
+      </VStack>
+    </Box>
+  )
+}
+
--- a/src/pages/tracker/index.ts
+++ b/src/pages/tracker/index.ts
@ -0,0 +1,2 @@
+export { TrackerPage } from './tracker'
+
--- a/src/pages/tracker/tracker.tsx
+++ b/src/pages/tracker/tracker.tsx
@ -0,0 +1,266 @@
+import React, { useState, useEffect } from 'react'
+import { useForm } from 'react-hook-form'
+import { zodResolver } from '@hookform/resolvers/zod'
+import { z } from 'zod'
+import { Link } from 'react-router-dom'
+import {
+  Box,
+  Button,
+  Input,
+  VStack,
+  HStack,
+  Text,
+  Heading,
+  Card,
+  Textarea,
+  Stack,
+} from '@chakra-ui/react'
+import { Field } from '../../components/ui/field'
+import { cigarettesApi } from '../../api/client'
+import { URLs } from '../../__data__/urls'
+import type { Cigarette } from '../../types/api'
+
+const logCigaretteSchema = z.object({
+  smokedAt: z.string().optional(),
+  note: z.string().optional(),
+})
+
+type LogCigaretteFormData = z.infer<typeof logCigaretteSchema>
+
+export const TrackerPage: React.FC = () => {
+  const [cigarettes, setCigarettes] = useState<Cigarette[]>([])
+  const [isLoading, setIsLoading] = useState(false)
+  const [error, setError] = useState<string | null>(null)
+  const [success, setSuccess] = useState<string | null>(null)
+
+  const {
+    register,
+    handleSubmit,
+    reset,
+    formState: { errors },
+  } = useForm<LogCigaretteFormData>({
+    resolver: zodResolver(logCigaretteSchema),
+  })
+
+  const fetchCigarettes = async () => {
+    try {
+      const response = await cigarettesApi.getAll()
+      if (response.success) {
+        // Show most recent first
+        setCigarettes(response.body.reverse())
+      }
+    } catch (err: any) {
+      console.error('Failed to fetch cigarettes:', err)
+    }
+  }
+
+  useEffect(() => {
+    fetchCigarettes()
+  }, [])
+
+  const logQuick = async () => {
+    setIsLoading(true)
+    setError(null)
+    setSuccess(null)
+
+    try {
+      const response = await cigarettesApi.log({})
+      if (response.success) {
+        setSuccess('Сигарета записана!')
+        await fetchCigarettes()
+        setTimeout(() => setSuccess(null), 3000)
+      }
+    } catch (err: any) {
+      const errorMessage = err?.response?.data?.errors || err?.response?.data?.message || 'Ошибка при записи'
+      setError(errorMessage)
+    } finally {
+      setIsLoading(false)
+    }
+  }
+
+  const onSubmit = async (data: LogCigaretteFormData) => {
+    setIsLoading(true)
+    setError(null)
+    setSuccess(null)
+
+    try {
+      const response = await cigarettesApi.log({
+        smokedAt: data.smokedAt || undefined,
+        note: data.note || undefined,
+      })
+      if (response.success) {
+        setSuccess('Сигарета записана с заметкой!')
+        reset()
+        await fetchCigarettes()
+        setTimeout(() => setSuccess(null), 3000)
+      }
+    } catch (err: any) {
+      const errorMessage = err?.response?.data?.errors || err?.response?.data?.message || 'Ошибка при записи'
+      setError(errorMessage)
+    } finally {
+      setIsLoading(false)
+    }
+  }
+
+  const formatDate = (dateString: string) => {
+    const date = new Date(dateString)
+    return date.toLocaleString('ru-RU', {
+      day: '2-digit',
+      month: '2-digit',
+      year: 'numeric',
+      hour: '2-digit',
+      minute: '2-digit',
+    })
+  }
+
+  return (
+    <Box minH="100vh" bg="gray.50" p={8}>
+      <VStack gap={6} maxW="4xl" mx="auto">
+        <Heading size="2xl">Трекер курения</Heading>
+
+        <HStack w="full" gap={4}>
+          <Link to={URLs.baseUrl}>
+            <Button colorScheme="gray" variant="outline">
+              На главную
+            </Button>
+          </Link>
+          <Link to={URLs.baseUrl + '/stats'}>
+            <Button colorScheme="teal" variant="outline">
+              Статистика
+            </Button>
+          </Link>
+        </HStack>
+
+        {/* Quick log button */}
+        <Card.Root w="full" bg="blue.50">
+          <Card.Body>
+            <VStack gap={4}>
+              <Text fontSize="lg" fontWeight="bold">
+                Быстрая запись
+              </Text>
+              <Button
+                colorScheme="blue"
+                size="lg"
+                w="full"
+                onClick={logQuick}
+                loading={isLoading}
+                disabled={isLoading}
+              >
+                Записать сигарету (текущее время)
+              </Button>
+            </VStack>
+          </Card.Body>
+        </Card.Root>
+
+        {/* Form with custom time and note */}
+        <Card.Root w="full">
+          <Card.Body>
+            <form onSubmit={handleSubmit(onSubmit)}>
+              <VStack gap={4} align="stretch">
+                <Heading size="md">Запись с дополнительными данными</Heading>
+
+                <Field
+                  label="Время (необязательно)"
+                  helperText="Оставьте пустым для текущего времени"
+                  invalid={!!errors.smokedAt}
+                  errorText={errors.smokedAt?.message}
+                >
+                  <Input
+                    {...register('smokedAt')}
+                    type="datetime-local"
+                    placeholder="Выберите время"
+                  />
+                </Field>
+
+                <Field
+                  label="Заметка (необязательно)"
+                  invalid={!!errors.note}
+                  errorText={errors.note?.message}
+                >
+                  <Textarea
+                    {...register('note')}
+                    placeholder="Добавьте комментарий..."
+                    rows={3}
+                  />
+                </Field>
+
+                <Button
+                  type="submit"
+                  colorScheme="green"
+                  w="full"
+                  loading={isLoading}
+                  disabled={isLoading}
+                >
+                  Записать с заметкой
+                </Button>
+              </VStack>
+            </form>
+          </Card.Body>
+        </Card.Root>
+
+        {/* Success/Error messages */}
+        {success && (
+          <Card.Root w="full" bg="green.50" borderColor="green.500" borderWidth={2}>
+            <Card.Body>
+              <Text color="green.700" fontWeight="bold">
+                {success}
+              </Text>
+            </Card.Body>
+          </Card.Root>
+        )}
+
+        {error && (
+          <Card.Root w="full" bg="red.50" borderColor="red.500" borderWidth={2}>
+            <Card.Body>
+              <Text color="red.700" fontWeight="bold">
+                {error}
+              </Text>
+            </Card.Body>
+          </Card.Root>
+        )}
+
+        {/* Recent cigarettes list */}
+        <Card.Root w="full">
+          <Card.Body>
+            <VStack gap={4} align="stretch">
+              <Heading size="md">Последние записи</Heading>
+
+              {cigarettes.length === 0 ? (
+                <Text color="gray.500" textAlign="center" py={4}>
+                  Записей пока нет
+                </Text>
+              ) : (
+                <Stack gap={2}>
+                  {cigarettes.slice(0, 10).map((cigarette) => (
+                    <Box
+                      key={cigarette.id}
+                      p={3}
+                      bg="gray.100"
+                      borderRadius="md"
+                      borderWidth={1}
+                      borderColor="gray.300"
+                    >
+                      <HStack justify="space-between" align="start">
+                        <VStack align="start" gap={1}>
+                          <Text fontWeight="bold">
+                            {formatDate(cigarette.smokedAt)}
+                          </Text>
+                          {cigarette.note && (
+                            <Text fontSize="sm" color="gray.600">
+                              {cigarette.note}
+                            </Text>
+                          )}
+                        </VStack>
+                      </HStack>
+                    </Box>
+                  ))}
+                </Stack>
+              )}
+            </VStack>
+          </Card.Body>
+        </Card.Root>
+      </VStack>
+    </Box>
+  )
+}
+
--- a/src/types/api.ts
+++ b/src/types/api.ts
@ -0,0 +1,64 @@
+// API Response wrapper
+export interface ApiResponse<T> {
+  success: boolean
+  body: T
+}
+
+export interface ApiError {
+  success: false
+  errors: string
+  message?: string
+}
+
+// User related types
+export interface User {
+  id: string
+  login: string
+  created: string
+}
+
+export interface SignUpRequest {
+  login: string
+  password: string
+}
+
+export interface SignInRequest {
+  login: string
+  password: string
+}
+
+export interface SignInResponse {
+  user: User
+  token: string
+}
+
+// Cigarette related types
+export interface Cigarette {
+  id: string
+  userId: string
+  smokedAt: string
+  note?: string
+  created: string
+}
+
+export interface LogCigaretteRequest {
+  smokedAt?: string
+  note?: string
+}
+
+export interface GetCigarettesParams {
+  from?: string
+  to?: string
+}
+
+// Statistics types
+export interface DailyStat {
+  date: string // YYYY-MM-DD format
+  count: number
+}
+
+export interface GetDailyStatsParams {
+  from?: string
+  to?: string
+}
+
--- a/stubs/api/index.js
+++ b/stubs/api/index.js
@ -4,5 +4,191 @@ const timer = (time = 300) => (req, res, next) => setTimeout(next, time);

 router.use(timer());

+// In-memory storage for demo
+const users = [];
+const cigarettes = [];
+let userIdCounter = 1;
+let cigaretteIdCounter = 1;
+
+// Simple token generation (for demo purposes only)
+const generateToken = (userId) => {
+  return Buffer.from(JSON.stringify({ userId, exp: Date.now() + 12 * 60 * 60 * 1000 })).toString('base64');
+};
+
+const verifyToken = (token) => {
+  try {
+    const payload = JSON.parse(Buffer.from(token, 'base64').toString());
+    if (payload.exp > Date.now()) {
+      return payload.userId;
+    }
+    return null;
+  } catch {
+    return null;
+  }
+};
+
+// Auth middleware
+const authMiddleware = (req, res, next) => {
+  const authHeader = req.headers.authorization;
+  if (!authHeader || !authHeader.startsWith('Bearer ')) {
+    return res.status(401).json({ success: false, errors: 'Требуется авторизация' });
+  }
+
+  const token = authHeader.substring(7);
+  const userId = verifyToken(token);
+  
+  if (!userId) {
+    return res.status(401).json({ success: false, errors: 'Неверный или истекший токен авторизации' });
+  }
+
+  req.userId = userId;
+  next();
+};
+
+// POST /auth/signup
+router.post('/auth/signup', (req, res) => {
+  const { login, password } = req.body;
+
+  if (!login || !password) {
+    return res.status(400).json({
+      success: false,
+      errors: 'Не все поля заполнены: login, password'
+    });
+  }
+
+  const existingUser = users.find(u => u.login === login);
+  if (existingUser) {
+    return res.status(500).json({
+      success: false,
+      errors: 'Пользователь с таким логином уже существует'
+    });
+  }
+
+  const user = {
+    id: String(userIdCounter++),
+    login,
+    password, // In real app, hash this!
+    created: new Date().toISOString()
+  };
+
+  users.push(user);
+
+  res.json({
+    success: true,
+    body: { ok: true }
+  });
+});
+
+// POST /auth/signin
+router.post('/auth/signin', (req, res) => {
+  const { login, password } = req.body;
+
+  if (!login || !password) {
+    return res.status(400).json({
+      success: false,
+      errors: 'Не все поля заполнены: login, password'
+    });
+  }
+
+  const user = users.find(u => u.login === login && u.password === password);
+  
+  if (!user) {
+    return res.status(500).json({
+      success: false,
+      errors: 'Неверный логин или пароль'
+    });
+  }
+
+  const token = generateToken(user.id);
+
+  res.json({
+    success: true,
+    body: {
+      user: {
+        id: user.id,
+        login: user.login,
+        created: user.created
+      },
+      token
+    }
+  });
+});
+
+// POST /cigarettes
+router.post('/cigarettes', authMiddleware, (req, res) => {
+  const { smokedAt, note } = req.body;
+  
+  const cigarette = {
+    id: String(cigaretteIdCounter++),
+    userId: req.userId,
+    smokedAt: smokedAt || new Date().toISOString(),
+    note: note || '',
+    created: new Date().toISOString()
+  };
+
+  cigarettes.push(cigarette);
+
+  res.json({
+    success: true,
+    body: cigarette
+  });
+});
+
+// GET /cigarettes
+router.get('/cigarettes', authMiddleware, (req, res) => {
+  const { from, to } = req.query;
+  
+  let userCigarettes = cigarettes.filter(c => c.userId === req.userId);
+
+  if (from) {
+    const fromDate = new Date(from);
+    userCigarettes = userCigarettes.filter(c => new Date(c.smokedAt) >= fromDate);
+  }
+
+  if (to) {
+    const toDate = new Date(to);
+    userCigarettes = userCigarettes.filter(c => new Date(c.smokedAt) <= toDate);
+  }
+
+  // Sort by smokedAt (oldest to newest)
+  userCigarettes.sort((a, b) => new Date(a.smokedAt).getTime() - new Date(b.smokedAt).getTime());
+
+  res.json({
+    success: true,
+    body: userCigarettes
+  });
+});
+
+// GET /stats/daily
+router.get('/stats/daily', authMiddleware, (req, res) => {
+  const { from, to } = req.query;
+  
+  // Default: 30 days ago to now
+  const fromDate = from ? new Date(from) : new Date(Date.now() - 30 * 24 * 60 * 60 * 1000);
+  const toDate = to ? new Date(to) : new Date();
+
+  let userCigarettes = cigarettes.filter(c => {
+    if (c.userId !== req.userId) return false;
+    const smokedDate = new Date(c.smokedAt);
+    return smokedDate >= fromDate && smokedDate <= toDate;
+  });
+
+  // Group by date
+  const dailyStats = {};
+  userCigarettes.forEach(c => {
+    const date = c.smokedAt.split('T')[0]; // YYYY-MM-DD
+    dailyStats[date] = (dailyStats[date] || 0) + 1;
+  });
+
+  // Convert to array and sort
+  const result = Object.entries(dailyStats)
+    .map(([date, count]) => ({ date, count }))
+    .sort((a, b) => a.date.localeCompare(b.date));
+
+  res.json({
+    success: true,
+    body: result
+  });
+});

 module.exports = router;