import { createClient } from '@supabase/supabase-js';
import * as fs from 'fs';
import * as path from 'path';

/**
 * Global teardown: delete all test-created data from Supabase.
 * Runs after all Playwright tests complete.
 *
 * Uses SUPABASE_SERVICE_ROLE_KEY to bypass RLS for reliable cleanup.
 * Falls back to anon key + password auth if service role key is unavailable.
 *
 * Cleanup targets (by name prefix):
 *   Documents:  "Test Folder", "Test Doc", "Test Board", "Nav Folder", "Rename Me", "Renamed"
 *   Boards:     "PW Board", "PW Card Board", "PW Detail Board", "Board A", "Board B", "Perf Test"
 *   Events:     "PW Event", "PW Detail", "PW Delete", "PW Test Event", "PW Finance"
 *   Invites:    "playwright-test-*@example.com"
 *   Roles:      "Tester"
 *   Tags:       "PW Tag"
 *   Sponsors:   "PW Sponsor"
 *   Contacts:   "PW Contact", "PW Vendor"
 *   Org events: "PW Test Event", "PW Finance" (cascades to depts, modules, budget, etc.)
 */

// Load .env manually since we're outside Vite
function loadEnv() {
	try {
		const envPath = path.resolve(process.cwd(), '.env');
		const content = fs.readFileSync(envPath, 'utf-8');
		for (const line of content.split('\n')) {
			const trimmed = line.trim();
			if (!trimmed || trimmed.startsWith('#')) continue;
			const eqIdx = trimmed.indexOf('=');
			if (eqIdx === -1) continue;
			const key = trimmed.slice(0, eqIdx);
			const value = trimmed.slice(eqIdx + 1);
			if (!process.env[key]) process.env[key] = value;
		}
	} catch { /* .env not found - rely on process.env */ }
}
loadEnv();

const SUPABASE_URL = process.env.PUBLIC_SUPABASE_URL || '';
const SUPABASE_ANON_KEY = process.env.PUBLIC_SUPABASE_ANON_KEY || '';
const SUPABASE_SERVICE_ROLE_KEY = process.env.SUPABASE_SERVICE_ROLE_KEY || '';

// Name prefixes used by tests when creating data
const DOC_PREFIXES = ['Test Folder', 'Test Doc', 'Test Board', 'Nav Folder', 'Rename Me', 'Renamed'];
const BOARD_PREFIXES = ['PW Board', 'PW Card Board', 'PW Detail Board', 'Board A', 'Board B', 'Perf Test'];
const ROLE_PREFIX = 'Tester';
const TAG_PREFIX = 'PW Tag';
const CALENDAR_EVENT_PREFIXES = ['PW Event', 'PW Detail', 'PW Delete'];
const ORG_EVENT_PREFIXES = ['PW Test Event', 'PW Finance'];
const SPONSOR_PREFIXES = ['PW Sponsor'];
const CONTACT_PREFIXES = ['PW Contact', 'PW Vendor'];
const INVITE_EMAIL_PATTERN = 'playwright-test-%@example.com';

/** Helper: delete rows by prefix from a table column */
async function deleteByPrefix(
	supabase: ReturnType<typeof createClient>,
	table: string,
	column: string,
	prefix: string,
	filterCol?: string,
	filterVal?: string,
): Promise<number> {
	let query = (supabase as any).from(table).select('id').ilike(column, `${prefix}%`);
	if (filterCol && filterVal) query = query.eq(filterCol, filterVal);
	const { data } = await query;
	if (!data || data.length === 0) return 0;
	const ids = data.map((r: any) => r.id);
	const { error } = await (supabase as any).from(table).delete().in('id', ids);
	if (error) {
		console.log(`[cleanup] Failed to delete from ${table} (prefix "${prefix}"): ${error.message}`);
		return 0;
	}
	return data.length;
}

export default async function globalTeardown() {
	if (!SUPABASE_ANON_KEY && !SUPABASE_SERVICE_ROLE_KEY) {
		console.log('[cleanup] No Supabase keys found - skipping cleanup');
		return;
	}

	let supabase: ReturnType<typeof createClient>;

	// Prefer service role key (bypasses RLS) for reliable cleanup
	if (SUPABASE_SERVICE_ROLE_KEY) {
		console.log('[cleanup] Using service role key (RLS bypassed)');
		supabase = createClient(SUPABASE_URL, SUPABASE_SERVICE_ROLE_KEY, {
			auth: { autoRefreshToken: false, persistSession: false },
		});
	} else {
		console.log('[cleanup] No service role key, falling back to anon key + auth');
		supabase = createClient(SUPABASE_URL, SUPABASE_ANON_KEY);
		const { error: authError } = await supabase.auth.signInWithPassword({
			email: 'tipilan@ituk.ee',
			password: 'gu&u6QTMbJK7nT',
		});
		if (authError) {
			console.log('[cleanup] Auth failed - skipping cleanup:', authError.message);
			return;
		}
	}

	// Get the org ID for root-test
	const { data: org } = await supabase
		.from('organizations')
		.select('id')
		.eq('slug', 'root-test')
		.single();

	if (!org) {
		console.log('[cleanup] root-test org not found - skipping cleanup');
		return;
	}

	const orgId = (org as any).id;
	let totalDeleted = 0;

	// 1. Delete test documents (folders, docs, kanbans) — cascades to content
	for (const prefix of DOC_PREFIXES) {
		totalDeleted += await deleteByPrefix(supabase, 'documents', 'name', prefix, 'org_id', orgId);
	}

	// 2. Delete test kanban boards — cascades to columns → cards → assignees
	for (const prefix of BOARD_PREFIXES) {
		totalDeleted += await deleteByPrefix(supabase, 'kanban_boards', 'name', prefix, 'org_id', orgId);
	}

	// 3. Delete test invites
	const { data: invites } = await (supabase as any)
		.from('org_invites')
		.select('id')
		.eq('org_id', orgId)
		.ilike('email', INVITE_EMAIL_PATTERN);

	if (invites && invites.length > 0) {
		const { error } = await (supabase as any).from('org_invites').delete().in('id', invites.map((i: any) => i.id));
		if (!error) totalDeleted += invites.length;
		else console.log('[cleanup] Failed to delete invites:', error.message);
	}

	// 4. Delete test roles
	totalDeleted += await deleteByPrefix(supabase, 'org_roles', 'name', ROLE_PREFIX, 'org_id', orgId);

	// 5. Delete test tags
	totalDeleted += await deleteByPrefix(supabase, 'tags', 'name', TAG_PREFIX, 'org_id', orgId);

	// 6. Delete test calendar events (simple calendar events, not org events)
	for (const prefix of CALENDAR_EVENT_PREFIXES) {
		totalDeleted += await deleteByPrefix(supabase, 'calendar_events', 'title', prefix, 'org_id', orgId);
	}

	// 7. Delete test org events — cascades to departments → modules → budget items, checklists, notes, etc.
	for (const prefix of ORG_EVENT_PREFIXES) {
		totalDeleted += await deleteByPrefix(supabase, 'events', 'name', prefix, 'org_id', orgId);
	}

	// 8. Delete test sponsors
	for (const prefix of SPONSOR_PREFIXES) {
		totalDeleted += await deleteByPrefix(supabase, 'sponsors', 'name', prefix);
	}

	// 9. Delete test org contacts
	for (const prefix of CONTACT_PREFIXES) {
		totalDeleted += await deleteByPrefix(supabase, 'org_contacts', 'name', prefix, 'org_id', orgId);
	}

	// 10. Delete test activity log entries (from test actions)
	const { data: activityLogs } = await (supabase as any)
		.from('activity_log')
		.select('id')
		.eq('org_id', orgId)
		.gte('created_at', new Date(Date.now() - 2 * 60 * 60 * 1000).toISOString());

	if (activityLogs && activityLogs.length > 0) {
		const { error } = await (supabase as any)
			.from('activity_log')
			.delete()
			.in('id', activityLogs.map((l: any) => l.id));
		if (!error) totalDeleted += activityLogs.length;
	}

	if (totalDeleted > 0) {
		console.log(`[cleanup] Deleted ${totalDeleted} test-created items from root-test org`);
	} else {
		console.log('[cleanup] No test data to clean up');
	}
}