import fs from 'node:fs/promises'
import { createRequire } from 'node:module'

const require = createRequire(new URL('../../apps/app-frontend/package.json', import.meta.url))
const ts = require('typescript')

const [tag, outputPath] = process.argv.slice(2)
const version = tag?.replace(/^v/, '')

if (!version || !outputPath) {
	throw new Error(
		'Usage: node scripts/axolotl/create-release-notes.mjs <version-tag> <output-path>',
	)
}

const catalogSource = await fs.readFile('apps/app-frontend/src/announcements/catalog.ts', 'utf8')
const catalogModule = await import(
	`data:text/javascript;base64,${Buffer.from(
		ts.transpileModule(catalogSource, {
			compilerOptions: {
				module: ts.ModuleKind.ESNext,
				target: ts.ScriptTarget.ES2022,
			},
		}).outputText,
	).toString('base64')}`
)

const announcement = catalogModule.getAnnouncementByVersion(version)
if (!announcement) {
	throw new Error(`No bundled announcement found for release ${version}`)
}

const categoryLabels = {
	added: { en: 'Added', zh: '新增' },
	changed: { en: 'Changed', zh: '变更' },
	deprecated: { en: 'Deprecated', zh: '弃用' },
	removed: { en: 'Removed', zh: '移除' },
	fixed: { en: 'Fixed', zh: 'Bug 修复' },
	security: { en: 'Security', zh: '安全修复' },
}

function renderLanguage(language) {
	const locale = language === 'zh' ? 'zh-CN' : 'en-US'
	const lines = [`## ${language === 'zh' ? '中文' : 'English'}`, '']

	for (const type of catalogModule.ANNOUNCEMENT_CHANGE_TYPES) {
		const changes = announcement.changes[type]
		if (!changes?.length) continue

		lines.push(`### ${categoryLabels[type][language]}`, '')
		for (const change of changes) {
			lines.push(`- ${change[locale]}`)
		}
		lines.push('')
	}

	if (announcement.notes) {
		lines.push(`### ${language === 'zh' ? '说明' : 'Notes'}`, '', announcement.notes[locale], '')
	}

	return lines
}

const lines = [
	`# ${announcement.title['zh-CN']}`,
	'',
	`发布日期 / Published: ${announcement.publishedAt}`,
	'',
	...renderLanguage('zh'),
	...renderLanguage('en'),
]

await fs.writeFile(outputPath, `${lines.join('\n').replace(/\n+$/, '')}\n`)
console.log(`Generated release notes for ${version} from the launcher announcement catalog.`)