import { describe, it, expect, beforeAll, afterAll } from 'vitest'
import { mkdtempSync, writeFileSync, rmSync } from 'fs'
import { tmpdir } from 'os'
import { join } from 'path'
import { createApp } from '../../server.js'

// Usiamo una dist temporanea con file marcatori, così il test non dipende da
// una build reale ed è deterministico.
let server
let baseUrl
let distDir

beforeAll(async () => {
    distDir = mkdtempSync(join(tmpdir(), 'segnapunti-dist-'))
    writeFileSync(join(distDir, 'index.html'), 'DISPLAY_MARKER')
    writeFileSync(join(distDir, 'controller.html'), 'CONTROLLER_MARKER')
    writeFileSync(join(distDir, 'app.js'), 'ASSET_MARKER')

    const app = createApp(distDir)
    await new Promise((resolve) => {
        server = app.listen(0, () => {
            baseUrl = `http://127.0.0.1:${server.address().port}`
            resolve()
        })
    })
})

afterAll(async () => {
    await new Promise((resolve) => server.close(resolve))
    rmSync(distDir, { recursive: true, force: true })
})

async function get(path) {
    const res = await fetch(baseUrl + path)
    return { status: res.status, body: await res.text() }
}

describe('Routing server (server.js)', () => {
    it('GET / serve la pagina display', async () => {
        const { status, body } = await get('/')
        expect(status).toBe(200)
        expect(body).toBe('DISPLAY_MARKER')
    })

    it('GET /display serve la pagina display', async () => {
        expect((await get('/display')).body).toBe('DISPLAY_MARKER')
    })

    it('GET /display/qualsiasi serve comunque la pagina display (SPA)', async () => {
        expect((await get('/display/foo/bar')).body).toBe('DISPLAY_MARKER')
    })

    it('GET /controller serve la pagina controller', async () => {
        expect((await get('/controller')).body).toBe('CONTROLLER_MARKER')
    })

    it('GET /controller/qualsiasi serve comunque la pagina controller', async () => {
        expect((await get('/controller/foo')).body).toBe('CONTROLLER_MARKER')
    })

    it('serve gli asset statici dalla dist', async () => {
        const { status, body } = await get('/app.js')
        expect(status).toBe(200)
        expect(body).toBe('ASSET_MARKER')
    })
})