piscine-js-up/personal-shopper.mjs at main · recentlyhatched/piscine-js-up · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
import fs from 'fs/promises'
import { json } from 'stream/consumers'

if (!process.argv[2]) {
    console.log("Example usages")
    console.log("To create a file: node personal-shopper.mjs <shopping-list.json> create")
    console.log("To delete a file: node personal-shopper.mjs <shopping-list.json> delete")
    console.log("To add an element to a list: node personal-shopper.mjs <shopping-list.json> add <element> [2]")
    console.log("To remove an alement from a list: node personal-shopper.mjs <shopping-list.json> rm <element> [5]")
    console.log("To list all command lines avaliable: node personal-shopper.mjs <shopping-list.json> help")
    console.log("To print the list in the file: node personal-shopper.mjs <shopping-list.json> ls")
}

async function writeNewFile(jsonFileName) {
    try {
        await fs.writeFile(jsonFileName, JSON.stringify({}), 'utf8')
        console.log(`${jsonFileName} successfully created`)
    } catch (err) {
        console.error("Error writing files:", err)
    }
}

async function deleteExsistingFile(jsonFileName) {
    try {
        // check if file exists before deleting
        await fs.access(jsonFileName)

        // delete file
        await fs.unlink(jsonFileName)
        console.log(`${jsonFileName} successfully deleted`)
    } catch (err) {
        if (err.code === 'ENOENT') {
            console
        }
    }
}

// async function addElements(jsonFileName, nameOfElement, numberOfElements = 1) {

//     if (isNaN(numberOfElements)) {
//         numberOfElements = 1
//     }

//     let data

//     try {
//         const fileContent = await fs.readFile(jsonFileName, 'utf8')
//         data = JSON.parse(fileContent)
//     } catch (err) {
//         console.log("Error reading file in addElements():", err)
//     }


//     try {
//          // add new element
//         if (!(nameOfElement in data)) {
//             data[nameOfElement] = numberOfElements
//         } else {
//             data[nameOfElement] += numberOfElements
//         }

//         await fs.writeFile(jsonFileName, JSON.stringify(data), 'utf8')
//         console.log(`${jsonFileName} successfully updated`)

//     } catch (err) {
//         console.log("Error adding elements:", err)
//     }


// }

if (process.argv[3] === "create") {
    writeNewFile(process.argv[2])
}

if (process.argv[3] === "delete") {
    deleteExsistingFile(process.argv[2])
}

if (process.argv[3] === "add") {
    if (!process.argv[4]) {
        console.log("No elem specified")
    } else {
        addElements(process.argv[2], process.argv[4], process.argv[5])
    }
}