import { Command } from '@cliffy/command/mod.ts'
import { Contact } from '../src/contact.ts'
import { send } from '../src/send.ts'
import { Mail } from '../types.ts'

export const cmd = new Command()
	.name('send')
	.description('Send a mail.')
	.option(
		'-f, --from <account:string>',
		'From mail account or short name from config.',
		{ default: '!me' },
	)
	.option('--cc <recipient:string>', 'Copy carbon.', { collect: true })
	.option('--cci <recipient:string>', 'Copy carbon invisible.', {
		collect: true,
	})
	.option('-a, --attachments <file:file>', 'Attachments.', { collect: true })
	//.option('-t, --template <name:template>', 'HTML template from config', { default: 'message' })
	.arguments('<to:string> <subject:string> <body:string>')
	.action(
		async ({ from, cc, cci, attachments }, to, subject, body) => {
			const fromContact: Contact = await (async () => {
				if (from === '!me') {
					const whoami = new Deno.Command('whoami', {
						stderr: 'inherit',
					})
					const { stdout } = await whoami.output()
					const rawName = new TextDecoder().decode(stdout).trim()
					const name = encodeURIComponent(rawName)

					return {
						name: `${name} de Cohabit`,
						address: `_${name}_@cohabit.fr`,
					}
				}
				if (from.startsWith('!')) {
					//@ts-ignore try expand
					return expand(from.slice(1))
				}
				return Contact.fromString(from)
			})()

			const mail: Mail = {
				from: fromContact,
				to: [Contact.fromString(to)],
				subject,
				body,
				options: {
					cc: cc?.map(Contact.fromString) ?? [],
					cci: cci?.map(Contact.fromString) ?? [],
					attachments: attachments ?? [],
				},
			}

			await send(mail)
		},
	)

if (import.meta.main) {
	if (Deno.args.length) {
		cmd.parse(Deno.args)
	} else {
		cmd.showHelp()
	}
}