import { beforeEach, describe, expect, it, vi } from 'vitest'
import { db } from '~/data/db'
import { appSettings } from '~/data/schema'
import { listReportRuns, writeSetting } from '~/data/repositories/settings'
import { readSlackConfig, reportScope, runWeeklyReport } from '~/lib/report-settings'
import { makeBrand, makeProject } from '../support/admin'
import { makePost } from '../support/entries'

const origin = 'https://logbuch.nyo.de'

beforeEach(async () => {
	await db.delete(appSettings)
	delete process.env.SLACK_WEBHOOK_URL
	vi.unstubAllGlobals()
})

describe('readSlackConfig', () => {
	it('nimmt den hinterlegten Webhook vor der Umgebungsvariable', async () => {
		process.env.SLACK_WEBHOOK_URL = 'https://hooks.slack.com/services/aus/der/umgebung'
		await writeSetting('slack.webhook', 'https://hooks.slack.com/services/aus/der/verwaltung')

		const config = await readSlackConfig()

		expect(config.target).toMatchObject({ kind: 'webhook' })
		expect(config.target && 'url' in config.target ? config.target.url : '').toContain('verwaltung')
		expect(config.fromEnv).toBe(false)
	})

	it('fällt auf die Umgebungsvariable zurück', async () => {
		process.env.SLACK_WEBHOOK_URL = 'https://hooks.slack.com/services/aus/der/umgebung'

		const config = await readSlackConfig()

		expect(config.fromEnv).toBe(true)
	})

	it('schickt interne Beiträge mit, solange nichts anderes gesetzt ist', async () => {
		expect(reportScope(await readSlackConfig())).toBe('internal')

		await writeSetting('slack.includeInternal', 'false')

		expect(reportScope(await readSlackConfig())).toBe('customer')
	})
})

describe('runWeeklyReport', () => {
	it('vermerkt einen Lauf ohne Veröffentlichungen, ohne zu senden', async () => {
		const fetchMock = vi.fn()
		vi.stubGlobal('fetch', fetchMock)

		const outcome = await runWeeklyReport({ origin, trigger: 'test' })

		expect(outcome.reason).toBe('nothing_published')
		expect(fetchMock).not.toHaveBeenCalled()

		const runs = await listReportRuns(1)

		expect(runs[0]).toMatchObject({ sent: false, total: 0, trigger: 'test', detail: 'nothing_published' })
	})
})

describe('Bot-Token', () => {
	it('nimmt Bot-Token und Kanal vor dem Webhook', async () => {
		await writeSetting('slack.webhook', 'https://hooks.slack.com/services/a/b/c')
		await writeSetting('slack.botToken', 'xoxb-1234')
		await writeSetting('slack.channel', 'logbuch')

		const config = await readSlackConfig()

		expect(config.target).toEqual({ kind: 'bot', token: 'xoxb-1234', channel: 'logbuch' })
		expect(config.hasBot).toBe(true)
	})

	it('braucht zum Bot-Token einen Kanal', async () => {
		await writeSetting('slack.botToken', 'xoxb-1234')

		const config = await readSlackConfig()

		expect(config.target).toBeUndefined()
		expect(config.hasBot).toBe(true)
	})

	it('merkt sich Kanal und Nachrichtenkennung eines Versands', async () => {
		const brand = await makeBrand()
		const project = await makeProject(brand.id)
		const post = await makePost(project.id, { number: 1, slug: 'eins', status: 'published', publishAt: new Date() })

		expect(post.id).toBeDefined()

		await writeSetting('slack.botToken', 'xoxb-1234')
		await writeSetting('slack.channel', 'logbuch')

		vi.stubGlobal('fetch', vi.fn(async () => new Response(
			JSON.stringify({ ok: true, channel: 'C999', ts: '1785600000.000100' }),
			{ headers: { 'content-type': 'application/json' } },
		)))

		const outcome = await runWeeklyReport({ origin, trigger: 'test' })

		expect(outcome.reason).toBe('sent')
		expect(outcome.run).toMatchObject({ sent: true, channel: 'C999', messageTs: '1785600000.000100' })
	})

	it('vermerkt eine Ablehnung mit dem Grund von Slack', async () => {
		const brand = await makeBrand()
		const project = await makeProject(brand.id)

		await makePost(project.id, { number: 1, slug: 'eins', status: 'published', publishAt: new Date() })

		await writeSetting('slack.botToken', 'xoxb-1234')
		await writeSetting('slack.channel', 'logbuch')

		vi.stubGlobal('fetch', vi.fn(async () => new Response(
			JSON.stringify({ ok: false, error: 'channel_not_found' }),
			{ headers: { 'content-type': 'application/json' } },
		)))

		const outcome = await runWeeklyReport({ origin, trigger: 'test' })

		expect(outcome.reason).toBe('rejected')
		expect(outcome.run).toMatchObject({ sent: false, detail: 'channel_not_found' })
	})
})

describe('Doppelter Versand', () => {
	it('schickt nach einem Versand nichts Zweites, solange nichts Neues erscheint', async () => {
		const brand = await makeBrand()
		const project = await makeProject(brand.id)

		await makePost(project.id, { number: 1, slug: 'eins', status: 'published', publishAt: new Date() })
		await writeSetting('slack.botToken', 'xoxb-1234')
		await writeSetting('slack.channel', 'C123')

		vi.stubGlobal('fetch', vi.fn(async () => new Response(
			JSON.stringify({ ok: true, channel: 'C123', ts: '1785600000.000100' }),
			{ headers: { 'content-type': 'application/json' } },
		)))

		const first = await runWeeklyReport({ origin, trigger: 'test' })
		const second = await runWeeklyReport({ origin, trigger: 'test' })

		expect(first.reason).toBe('sent')
		expect(second.reason).toBe('nothing_published')
	})
})