feat: add '/units' endpoints; add 'put' and 'delete' requests to '/dictionaries' endpoint

server/routers/kfu-m-24-1/eng-it-lean/dictionaries/data/dictionaries.json

@@ -1,7 +1,7 @@
 [
   {
     "id": 0,
-    "description": "1000 часто используемых",
+    "description": "10 часто используемых",
     "imageFilename": "kart1.jpg"
   },
   {

server/routers/kfu-m-24-1/eng-it-lean/dictionaries/index.js

@@ -1,3 +1,5 @@
+const fs = require('fs');
+const path = require('path');
 const router = require("express").Router();
 
 module.exports = router;
@@ -9,6 +11,59 @@ router.get("/", (req, res) => {
   res.send(data);
 });
 
+// Put new dictionary to the array of dictionaries
+router.put('/new', (req, res) => {
+  if (!data || !Array.isArray(data)) {
+    return res.status(400).send('No array of dictionaries found`');
+  }
+
+  const updatedData = req.body;
+
+  if (!updatedData) {
+    return res.status(400).send('No data to update'); // Bad request
+  }
+
+  if (!data) {
+    return res.status(500).send('No data to update'); // Internal server error
+  }
+
+  indexedUpdatedData = { id: data.length, ...updatedData }; // Add the new dictionary to the array
+
+  data.push(indexedUpdatedData); // Add the new dictionary to the array
+
+  fs.writeFile(path.join(__dirname, 'data/dictionaries.json'), JSON.stringify(data), (err) => {
+    if (err) {
+      console.error(err); // Log the error
+      return res.status(500).send('Error saving data');
+    }
+    res.status(200).json(data); // Send back the updated data
+  });
+});
+
+router.delete('/:id', (req, res) => {
+  const id = parseInt(req.params.id); // Get the dictionary id from the URL
+
+  if (!id || isNaN(id)) {
+    return res.status(400).send('Invalid ID'); // Bad request
+  }
+
+  const index = data.findIndex((dictionary) => dictionary.id === id);
+
+  if (index < 0) {
+    return res.status(404).send('Not found'); // Not found
+  }
+
+  data.splice(index, 1); // Remove the dictionary from the array
+
+  fs.writeFile(path.join(__dirname, 'data/dictionaries.json'), JSON.stringify(data), (err) => {
+    if (err) {
+      console.error(err); // Log the error
+      return res.status(500).send('Error saving data');
+    }
+    res.send({ message: `Dictionary with id ${id} deleted` });
+  });
+});
+
 router.get("/:id", (req, res) => {
   const id = parseInt(req.params.id);
   const words = wordsData.find((word) => word.id === id);

server/routers/kfu-m-24-1/eng-it-lean/index.js

@@ -1,13 +1,15 @@
 const router = require("express").Router();
 
 const dictionariesRouter = require("./dictionaries");
+const unitsRouter = require('./units');
 module.exports = router;
 
 const delay =
-  (ms = 1000) =>
+  (ms = 250) =>
   (req, res, next) => {
     setTimeout(next, ms);
   };
 
 router.use(delay());
 router.use("/dictionaries", dictionariesRouter);
+router.use('/units', unitsRouter);

server/routers/kfu-m-24-1/eng-it-lean/units/data/unit-1.md

@@ -0,0 +1,71 @@
+# Unit 1. Multifunctional Verbs: Be, Have, and Do
+
+## Overview
+
+This unit focuses on the use of multifunctional verbs in English. These verbs are able to express multiple meanings depending on their use in a sentence.
+
+## Learning Objectives
+
+By the end of this unit, you will be able to:
+
+- Identify the different forms of the main multifunctional verb.
+- Explain how these forms can be used interchangeably in sentences.
+- Demonstrate the correct usage of the three forms of the multifunctional verb by providing sentences and examples.
+
+## Vocabulary Review
+
+| Term | Definition                                               |
+| ---- | -------------------------------------------------------- |
+| Be   | To express a present or ongoing state of being.          |
+| Have | To express ownership or possession.                      |
+| Do   | To express an action to be done, future action or habit. |
+
+## Activities
+
+### Activity 1: Identify the Different Forms of the Main Multifunctional Verb
+
+- Read through each sentence and identify if the verb is used in its present tense (is), past tense (was/were), or future tense (will, would).
+- Discuss how this usage can vary depending on context.
+- Write down sentences that use different forms to illustrate your points.
+
+1. **Sentence 1**: "The cat is sleeping."
+
+   - Present tense: The cat is sleeping.
+   - Past tense: The cat slept.
+   - Future tense: The cat will sleep.
+
+2. **Sentence 2**: "I have a dog at home."
+
+   - Present tense: I have a dog.
+   - Past tense: I had a dog.
+   - Future tense: I will have a dog.
+
+3. **Sentence 3**: "We are going on a hike tomorrow."
+
+   - Present tense: We are going on a hike.
+   - Past tense: We went on a hike.
+   - Future tense: We will go on a hike.
+
+4. **Sentence 4**: "He has been studying all day."
+
+   - Present tense: He is studying.
+   - Past tense: He studied.
+   - Future tense: He will study.
+
+5. **Sentence 5**: "We are going to buy some groceries later today."
+   - Present tense: We are going to buy some groceries.
+   - Past tense: We bought some groceries.
+   - Future tense: We will buy some groceries.
+
+### Activity 2: Explain How These Forms Can Be Used Interchangeably in Sentences
+
+- Read through a sentence and identify the present, past, and future tense uses.
+- In pairs, explain why these forms are used interchangeably.
+- Provide examples of sentences that demonstrate this usage.
+- Highlight how the context changes the meaning.
+
+### Activity 3: Correct Usage of the Three Forms of the Multifunctional Verb
+
+- Read through a sentence and identify which form is being used.
+- In pairs, discuss why these forms are used in certain situations.
+- Provide sentences that demonstrate the correct usage of the three forms.

server/routers/kfu-m-24-1/eng-it-lean/units/data/units.json

@@ -0,0 +1 @@
+[{"id":0,"filename":"unit-1","name":"Unit 1: Multifunctional Verbs: Be, Have, and Do"}]

server/routers/kfu-m-24-1/eng-it-lean/units/index.js

@@ -0,0 +1,58 @@
+const fs = require('fs');
+const path = require('path');
+const router = require('express').Router();
+
+module.exports = router;
+
+const data = require('./data/units.json');
+router.get('/', (req, res) => {
+  res.send(data);
+});
+
+router.put('/', (req, res) => {
+	const newUnit = req.body
+
+	if (!newUnit) {
+		return res.status(400).send('No new unit to be added')
+	}
+
+	if (!data) {
+		return res.status(500).send('No data to be updated')
+	}
+
+	data.push({ "id": data.length, ...newUnit })
+
+	fs.writeFileSync(path.join(__dirname, 'data', 'units.json'), JSON.stringify(data));
+	res.status(200).send(data);
+});
+
+router.delete('/:id', (req, res) => {
+	const id = parseInt(req.params.id);
+	const index = data.findIndex((unit) => unit.id === id);
+
+	if (index < 0) {
+		return res.status(404).send('Not found');
+	}
+
+	data.splice(index, 1);
+	fs.writeFileSync(path.join(__dirname, 'data', 'units.json'), JSON.stringify(data));
+	res.send({ message: `Unit with ID ${id} deleted` });
+});
+
+router.get('/:id', (req, res) => {
+  const id = parseInt(req.params.id);
+  const unit = data.find((unit) => unit.id === id);
+
+  if (!unit) {
+    return res.status(404).send('Not found');
+  }
+
+  const unitFilepath = path.join(__dirname, 'data', `${unit.filename}.md`);
+  const unitContent = fs.readFileSync(unitFilepath, 'utf-8');
+
+  if (!unitContent) {
+    return res.status(404).send('Not found');
+  }
+
+  res.send({ ...unit, content: unitContent });
+});