// Action registry — defines all available actions, their parameters, and policies.
// policy: "auto-accept" | "auto-deny" | "queue"


import { resolve_path, exec } from './helpers.mjs';
import { check_can_approve } from './auth.mjs';

export const actions = {
	"list-actions": {
		description: "List all available actions and their definitions",
		params: [],
		policy: "auto-accept",
		handler: () => {
			return Object.entries(actions).map(([name, def]) => ({
				action: name,
				description: def.description,
				params: def.params,
				policy: def.policy,
			}));
		},
	},

	"edit-file": {
		description: "Open a file in the editor",
		params: [{ name: "filename", required: true, type: "path" }],
		policy: "auto-accept",
		handler: ({ filename }) => {
			const resolved = resolve_path(filename);
			exec('subl3', [resolved]);
			return { opened: resolved };
		},
	},

	/*
	"open-directory": {
		description: "Open a directory in the file manager",
		params: [{ name: "path", required: true, type: "path" }],
		policy: 'queue',
		handler: ({ path }) => {
			const resolved = resolve_path(path);
			// exec( ... );
			return { opened: resolved };
		},
	},
	*/

	"open-browser": {
		description: "Open a URL in the web browser",
		params: [{ name: "url", required: true, type: "string" }],
		policy: "queue",
		handler: ({ url }) => {
			const parsed = new URL(url);
			if (parsed.protocol !== 'http:' && parsed.protocol !== 'https:') {
				throw new Error(`Disallowed protocol: ${parsed.protocol}`);
			}
			exec('xdg-open', [parsed.href]);
			return { opened: parsed.href };
		},
	},

	"open-terminal": {
		description: "Open a terminal in a given directory",
		params: [{ name: "path", required: false, type: "path" }],
		policy: 'queue',
		handler: ({ path }) => {
			const resolved = resolve_path(path ?? 'workspace');
			exec('konsole', ['--workdir', resolved, '-e', 'bash']);
			return { opened: resolved };
		},
	},

	'send-email': {
		description: 'Send an email to a permitted recipient',
		params: [
			{ name: 'to',      required: true,  type: 'string' },
			{ name: 'subject', required: true,  type: 'string' },
			{ name: 'body',    required: true,  type: 'string' },
			{ name: 'topic',   required: true,  type: 'string' },
		],
		policy: 'auto-accept',
		handler: async ({ to, subject, body, topic }, { caller, mail_perm_store, mailer_send }) => {
			if (!mail_perm_store.check(caller, to, topic)) {
				throw new Error(`Mail permission denied: ${caller} → ${to} [${topic}]`);
			}
			await mailer_send(to, subject, body);
			return { sent: true, to, topic };
		},
	},

	'set-mail-permission': {
		description: 'Grant or revoke permission for a user to send email to a recipient/topic',
		params: [
			{ name: 'target_user', required: true,  type: 'string' },
			{ name: 'to',          required: true,  type: 'string' },
			{ name: 'topic',       required: true,  type: 'string' },
			{ name: 'allow',       required: true,  type: 'boolean' },
		],
		policy: 'auto-accept',
		handler: ({ target_user, to, topic, allow }, { caller, users, mail_perm_store }) => {
			if (!check_can_approve(users, caller, target_user)) {
				throw new Error(`Not authorized to set mail permissions for '${target_user}'`);
			}
			if (allow) {
				mail_perm_store.add(target_user, to, topic);
			} else {
				mail_perm_store.remove(target_user, to, topic);
			}
			return { target_user, to, topic, allow, permissions: mail_perm_store.list() };
		},
	},

	'get-mail-permissions': {
		description: 'List current mail permissions, optionally filtered by user',
		params: [
			{ name: 'target_user', required: false, type: 'string' },
		],
		policy: 'auto-accept',
		handler: ({ target_user }, { mail_perm_store }) => {
			const all = mail_perm_store.list();
			return { permissions: target_user ? all.filter(e => e.user === target_user) : all };
		},
	},
};