69 lines
1.9 KiB
TypeScript
69 lines
1.9 KiB
TypeScript
import type { AxiosInstance } from 'axios'
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import { decode } from 'iconv-lite'
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import { RegExes } from './constants'
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interface Data {
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mainRoute: string
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searchRoute: string
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timetableRoute: string
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teacherCode: string
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originalCode: string
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dayCode: string
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subjectCode: string
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}
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export default class DataManager {
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private _data: Data | null = null
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private _lastFetchDate = 0
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constructor(private readonly rest: AxiosInstance) {}
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private async fetchData(): Promise<Data> {
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const res = await this.rest.get('/st', {
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responseType: 'arraybuffer',
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})
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const data = decode(Buffer.from(res.data), 'euc-kr')
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const main = RegExes.MainRoute.exec(data)
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if (!main) throw new Error('Failed to fetch main route')
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const search = RegExes.SearchRoute.exec(data)
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if (!search) throw new Error('Failed to fetch search route')
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const timetable = RegExes.TimetableRoute.exec(data)
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if (!timetable) throw new Error('Failed to fetch timetable route')
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const teacher = RegExes.TeacherCode.exec(data)
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if (!teacher) throw new Error('Failed to fetch teacher code')
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const original = RegExes.OriginalCode.exec(data)
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if (!original) throw new Error('Failed to fetch original code')
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const day = RegExes.DayCode.exec(data)
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if (!day) throw new Error('Failed to fetch day code')
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const subject = RegExes.SubjectCode.exec(data)
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if (!subject) throw new Error('Failed to fetch subject code')
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this._lastFetchDate = new Date().getDate()
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this._data = {
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mainRoute: main[0],
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searchRoute: search[0],
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timetableRoute: timetable[0],
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teacherCode: teacher[0],
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originalCode: original[0],
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dayCode: day[0],
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subjectCode: subject[0],
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}
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return this._data
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}
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async getData() {
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if (this._data && this._lastFetchDate === new Date().getDate())
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return this._data
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return this.fetchData()
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}
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}
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