import { describe, it, expect, vi } from 'vitest';
import {
	SPONSOR_STATUSES,
	STATUS_LABELS,
	STATUS_COLORS,
	fetchSponsorTiers,
	createSponsorTier,
	updateSponsorTier,
	deleteSponsorTier,
	fetchSponsors,
	createSponsor,
	updateSponsor,
	deleteSponsor,
	fetchDeliverables,
	fetchAllDeliverables,
	createDeliverable,
	updateDeliverable,
	deleteDeliverable,
} from './sponsors';

// ── Supabase mock builder ────────────────────────────────────────────────────

function mockChain(resolvedValue: { data: any; error: any }) {
	const chain: any = {};
	const methods = ['from', 'select', 'insert', 'update', 'delete', 'eq', 'in', 'order', 'single'];
	for (const m of methods) {
		chain[m] = vi.fn(() => chain);
	}
	chain.single = vi.fn(() => Promise.resolve(resolvedValue));
	chain.then = (resolve: any) => resolve(resolvedValue);
	return chain;
}

function mockSupabase(resolvedValue: { data: any; error: any }) {
	const chain = mockChain(resolvedValue);
	return { from: vi.fn(() => chain), _chain: chain } as any;
}

// ── Constants ────────────────────────────────────────────────────────────────

describe('sponsor constants', () => {
	it('SPONSOR_STATUSES has expected entries', () => {
		expect(SPONSOR_STATUSES).toContain('prospect');
		expect(SPONSOR_STATUSES).toContain('confirmed');
		expect(SPONSOR_STATUSES).toContain('declined');
		expect(SPONSOR_STATUSES).toContain('active');
		expect(SPONSOR_STATUSES.length).toBe(5);
	});

	it('STATUS_LABELS has a label for every status', () => {
		for (const s of SPONSOR_STATUSES) {
			expect(STATUS_LABELS[s]).toBeDefined();
			expect(typeof STATUS_LABELS[s]).toBe('string');
		}
	});

	it('STATUS_COLORS has a color for every status', () => {
		for (const s of SPONSOR_STATUSES) {
			expect(STATUS_COLORS[s]).toBeDefined();
			expect(STATUS_COLORS[s]).toMatch(/^#/);
		}
	});
});

// ── Sponsor Tiers ────────────────────────────────────────────────────────────

describe('fetchSponsorTiers', () => {
	it('returns tiers for a department', async () => {
		const tiers = [{ id: 't1', name: 'Gold', department_id: 'd1' }];
		const sb = mockSupabase({ data: tiers, error: null });
		expect(await fetchSponsorTiers(sb, 'd1')).toEqual(tiers);
	});

	it('returns empty array when null', async () => {
		const sb = mockSupabase({ data: null, error: null });
		expect(await fetchSponsorTiers(sb, 'd1')).toEqual([]);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(fetchSponsorTiers(sb, 'd1')).rejects.toEqual({ message: 'fail' });
	});
});

describe('createSponsorTier', () => {
	it('creates with default color', async () => {
		const tier = { id: 't1', name: 'Silver', amount: 0, color: '#F59E0B' };
		const sb = mockSupabase({ data: tier, error: null });
		expect(await createSponsorTier(sb, 'd1', 'Silver')).toEqual(tier);
	});

	it('creates with custom amount and color', async () => {
		const tier = { id: 't2', name: 'Platinum', amount: 10000, color: '#00ff00' };
		const sb = mockSupabase({ data: tier, error: null });
		expect(await createSponsorTier(sb, 'd1', 'Platinum', 10000, '#00ff00')).toEqual(tier);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(createSponsorTier(sb, 'd1', 'X')).rejects.toEqual({ message: 'fail' });
	});
});

describe('updateSponsorTier', () => {
	it('updates and returns tier', async () => {
		const tier = { id: 't1', name: 'Updated' };
		const sb = mockSupabase({ data: tier, error: null });
		expect(await updateSponsorTier(sb, 't1', { name: 'Updated' })).toEqual(tier);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(updateSponsorTier(sb, 't1', { name: 'X' })).rejects.toEqual({ message: 'fail' });
	});
});

describe('deleteSponsorTier', () => {
	it('deletes without error', async () => {
		const sb = mockSupabase({ data: null, error: null });
		await expect(deleteSponsorTier(sb, 't1')).resolves.toBeUndefined();
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(deleteSponsorTier(sb, 't1')).rejects.toEqual({ message: 'fail' });
	});
});

// ── Sponsors ─────────────────────────────────────────────────────────────────

describe('fetchSponsors', () => {
	it('returns sponsors for a department', async () => {
		const sponsors = [{ id: 's1', name: 'Acme', department_id: 'd1' }];
		const sb = mockSupabase({ data: sponsors, error: null });
		expect(await fetchSponsors(sb, 'd1')).toEqual(sponsors);
	});

	it('returns empty array when null', async () => {
		const sb = mockSupabase({ data: null, error: null });
		expect(await fetchSponsors(sb, 'd1')).toEqual([]);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(fetchSponsors(sb, 'd1')).rejects.toEqual({ message: 'fail' });
	});
});

describe('createSponsor', () => {
	it('creates with minimal params', async () => {
		const sponsor = { id: 's1', name: 'Acme', status: 'prospect', amount: 0 };
		const sb = mockSupabase({ data: sponsor, error: null });
		expect(await createSponsor(sb, 'd1', { name: 'Acme' })).toEqual(sponsor);
	});

	it('creates with all params', async () => {
		const sponsor = { id: 's2', name: 'BigCo', status: 'confirmed', amount: 5000 };
		const sb = mockSupabase({ data: sponsor, error: null });
		expect(await createSponsor(sb, 'd1', {
			name: 'BigCo',
			tier_id: 't1',
			contact_name: 'John',
			contact_email: 'john@bigco.com',
			contact_phone: '+1234',
			website: 'https://bigco.com',
			logo_url: 'https://bigco.com/logo.png',
			status: 'confirmed',
			amount: 5000,
			notes: 'VIP sponsor',
		})).toEqual(sponsor);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(createSponsor(sb, 'd1', { name: 'X' })).rejects.toEqual({ message: 'fail' });
	});
});

describe('updateSponsor', () => {
	it('updates and returns sponsor', async () => {
		const sponsor = { id: 's1', name: 'Updated' };
		const sb = mockSupabase({ data: sponsor, error: null });
		expect(await updateSponsor(sb, 's1', { name: 'Updated' })).toEqual(sponsor);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(updateSponsor(sb, 's1', { name: 'X' })).rejects.toEqual({ message: 'fail' });
	});
});

describe('deleteSponsor', () => {
	it('deletes without error', async () => {
		const sb = mockSupabase({ data: null, error: null });
		await expect(deleteSponsor(sb, 's1')).resolves.toBeUndefined();
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(deleteSponsor(sb, 's1')).rejects.toEqual({ message: 'fail' });
	});
});

// ── Deliverables ─────────────────────────────────────────────────────────────

describe('fetchDeliverables', () => {
	it('returns deliverables for a sponsor', async () => {
		const delivs = [{ id: 'dl1', description: 'Logo placement', sponsor_id: 's1' }];
		const sb = mockSupabase({ data: delivs, error: null });
		expect(await fetchDeliverables(sb, 's1')).toEqual(delivs);
	});

	it('returns empty array when null', async () => {
		const sb = mockSupabase({ data: null, error: null });
		expect(await fetchDeliverables(sb, 's1')).toEqual([]);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(fetchDeliverables(sb, 's1')).rejects.toEqual({ message: 'fail' });
	});
});

describe('fetchAllDeliverables', () => {
	it('returns empty array for empty sponsor list', async () => {
		const sb = mockSupabase({ data: [], error: null });
		expect(await fetchAllDeliverables(sb, [])).toEqual([]);
	});

	it('returns deliverables for multiple sponsors', async () => {
		const delivs = [
			{ id: 'dl1', sponsor_id: 's1' },
			{ id: 'dl2', sponsor_id: 's2' },
		];
		const sb = mockSupabase({ data: delivs, error: null });
		expect(await fetchAllDeliverables(sb, ['s1', 's2'])).toEqual(delivs);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(fetchAllDeliverables(sb, ['s1'])).rejects.toEqual({ message: 'fail' });
	});
});

describe('createDeliverable', () => {
	it('creates with description only', async () => {
		const deliv = { id: 'dl1', description: 'Banner', sponsor_id: 's1' };
		const sb = mockSupabase({ data: deliv, error: null });
		expect(await createDeliverable(sb, 's1', 'Banner')).toEqual(deliv);
	});

	it('creates with due date', async () => {
		const deliv = { id: 'dl2', description: 'Video', sponsor_id: 's1', due_date: '2025-06-01' };
		const sb = mockSupabase({ data: deliv, error: null });
		expect(await createDeliverable(sb, 's1', 'Video', '2025-06-01')).toEqual(deliv);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(createDeliverable(sb, 's1', 'X')).rejects.toEqual({ message: 'fail' });
	});
});

describe('updateDeliverable', () => {
	it('updates and returns deliverable', async () => {
		const deliv = { id: 'dl1', description: 'Updated' };
		const sb = mockSupabase({ data: deliv, error: null });
		expect(await updateDeliverable(sb, 'dl1', { description: 'Updated' })).toEqual(deliv);
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(updateDeliverable(sb, 'dl1', { description: 'X' })).rejects.toEqual({ message: 'fail' });
	});
});

describe('deleteDeliverable', () => {
	it('deletes without error', async () => {
		const sb = mockSupabase({ data: null, error: null });
		await expect(deleteDeliverable(sb, 'dl1')).resolves.toBeUndefined();
	});

	it('throws on error', async () => {
		const sb = mockSupabase({ data: null, error: { message: 'fail' } });
		await expect(deleteDeliverable(sb, 'dl1')).rejects.toEqual({ message: 'fail' });
	});
});