import { ensureDir } from '$std/fs/mod.ts'
import { join } from '$std/path/join.ts'
import denoJson from '../deno.json' with { type: 'json' }

// Get package from cli
const baseRepo = 'https://git.cohabit.fr/'
const packageRepoAndTag = Deno.args[0]
const match = packageRepoAndTag.match(/(?<name>@\S+\/\S+)@(?<tag>\d\.\d\.\d.*)/)

// Parse name and version tag
if (match === null || match.groups === undefined) {
	throw new SyntaxError('usage: deno task $task_name @scope/name@x.x.x')
}
const { name, tag } = match.groups
const repoUrl = new URL(`${name.slice(1)}.git`, baseRepo)

// Setup destination and remove old versions
const fsName = name.replace('/', '__')
const packageBase = join(Deno.cwd(), 'packages')
const destinationBase = join(packageBase, fsName)
const destinationCurrent = `${destinationBase}@${tag}`

// Create base dir if needed
await ensureDir(packageBase)

// Remove old versions
for await (const entry of Deno.readDir(packageBase)) {
	if (entry.isDirectory && entry.name.startsWith(fsName)) {
		Deno.remove(join(packageBase, entry.name), {
			recursive: true,
		})
	}
}

// Clone repo @ tag
const git = new Deno.Command('git', {
	args: [
		'clone',
		repoUrl.href,
		'--branch',
		tag,
		'--single-branch',
		'--depth',
		'1',
		destinationCurrent,
	],
	stderr: 'inherit',
	stdout: 'inherit',
})
await git.output()

// Get workspaces
// @ts-ignore maybe undefined
const workspaces: string[] = denoJson['workspaces'] ?? []
// Update deno.json
const newDenoJson = {
	...denoJson,
	imports: {
		...denoJson.imports,
		[`${name}/`]: `./packages/${fsName}@${tag}/`,
	},
	workspaces: [
		...workspaces.filter((workspace) =>
			workspace.startsWith(`packages/${fsName}`) === false
		),
		`packages/${fsName}@${tag}`,
	],
}

// Update deno.json file
await Deno.writeTextFile('./deno.json', JSON.stringify(newDenoJson))

const denoFmt = new Deno.Command('deno', {
	args: ['fmt', 'deno.json'],
	stderr: 'inherit',
	stdout: 'inherit',
})
await denoFmt.output()