import { describe, it, expect, vi, beforeEach } from 'vitest';
import { mount, flushPromises } from '@vue/test-utils';
import { createVuetify } from 'vuetify';
import { createRouter, createMemoryHistory } from 'vue-router';
import { createPinia, setActivePinia } from 'pinia';
import DealsView from '../../resources/js/views/DealsView.vue';
import KanbanView from '../../resources/js/views/KanbanView.vue';
import { useAuthStore } from '../../resources/js/stores/auth';
import type { ApiDeal } from '../../resources/js/api/deals';

vi.mock('../../resources/js/api/deals', async (importOriginal) => {
    const orig = await importOriginal<typeof import('../../resources/js/api/deals')>();
    return {
        ...orig,
        listDeals: vi.fn(),
        listManagers: vi.fn().mockResolvedValue([]),
        listProjects: vi.fn().mockResolvedValue([]),
        transitionDeals: vi.fn(),
    };
});

const dealsApi = await import('../../resources/js/api/deals');

function makeApiDeal(overrides: Partial<ApiDeal> = {}): ApiDeal {
    return {
        id: 100,
        tenant_id: 1,
        project_id: 5,
        project_name: 'Окна Москва',
        phone: '+7 (999) 100-00-01',
        contact_name: 'Анна Б.',
        status: 'new',
        manager_id: 10,
        manager_name: 'Иван П.',
        manager_initials: 'ИП',
        received_at: new Date(Date.now() - 5 * 60 * 1000).toISOString(),
        comment: null,
        city: null,
        project_signal_type: null,
        ...overrides,
    };
}

function setupAuth(tenantId: number | null) {
    setActivePinia(createPinia());
    const auth = useAuthStore();
    if (tenantId !== null) {
        auth.user = {
            id: 1,
            email: 'test@example.test',
            first_name: 'Test',
            last_name: 'User',
            tenant_id: tenantId,
            totp_enabled: false,
            last_login_at: null,
        };
    }
}

beforeEach(() => {
    vi.clearAllMocks();
});

const mountDealsView = async () => {
    const router = createRouter({
        history: createMemoryHistory(),
        routes: [{ path: '/deals', component: DealsView }],
    });
    await router.push('/deals');
    await router.isReady();
    return mount(DealsView, {
        global: {
            plugins: [createVuetify(), router],
            stubs: { DealDetailDrawer: true },
        },
    });
};

const mountKanbanView = () =>
    mount(KanbanView, {
        global: {
            plugins: [createVuetify()],
            stubs: { DealDetailDrawer: true, NewDealDialog: true, KanbanColumn: true },
        },
    });

describe('DealsView ↔ GET /api/deals integration', () => {
    it('БЕЗ auth.user.tenant_id — listDeals не вызывается, dealsState пустой', async () => {
        setupAuth(null);
        const wrapper = await mountDealsView();
        await flushPromises();
        expect(dealsApi.listDeals).not.toHaveBeenCalled();
        const vm = wrapper.vm as unknown as { dealsState: { id: number }[] };
        expect(vm.dealsState.length).toBe(0);
    });

    it('С auth.user.tenant_id — listDeals вызывается с tenantId + replace dealsState', async () => {
        setupAuth(1);
        vi.mocked(dealsApi.listDeals).mockResolvedValueOnce({
            deals: [
                makeApiDeal({ id: 200, contact_name: 'Из API #1', status: 'won' }),
                makeApiDeal({ id: 201, contact_name: 'Из API #2', status: 'new' }),
            ],
            total: 2,
            limit: 20,
            offset: 0,
        });

        const wrapper = await mountDealsView();
        await flushPromises();

        expect(dealsApi.listDeals).toHaveBeenCalledTimes(1);
        expect(dealsApi.listDeals).toHaveBeenCalledWith(expect.objectContaining({ tenantId: 1, limit: 20 }));

        const vm = wrapper.vm as unknown as { dealsState: { id: number; name: string }[] };
        expect(vm.dealsState).toHaveLength(2);
        expect(vm.dealsState.map((d) => d.id).sort()).toEqual([200, 201]);
        expect(vm.dealsState.find((d) => d.id === 200)?.name).toBe('Из API #1');
    });

    it('listDeals reject → fetchError=true, alert виден, dealsState пустой', async () => {
        setupAuth(1);
        vi.mocked(dealsApi.listDeals).mockRejectedValueOnce(new Error('network'));

        const wrapper = await mountDealsView();
        await flushPromises();

        const vm = wrapper.vm as unknown as { fetchError: boolean; dealsState: unknown[] };
        expect(vm.fetchError).toBe(true);
        expect(vm.dealsState.length).toBe(0);
        // Alert виден.
        expect(wrapper.find('[data-testid="fetch-error-alert"]').exists()).toBe(true);
    });

    it('reload-btn повторно вызывает listDeals', async () => {
        setupAuth(1);
        vi.mocked(dealsApi.listDeals).mockResolvedValue({
            deals: [makeApiDeal({ id: 400 })],
            total: 1,
            limit: 20,
            offset: 0,
        });

        const wrapper = await mountDealsView();
        await flushPromises();
        expect(dealsApi.listDeals).toHaveBeenCalledTimes(1);

        await wrapper.find('[data-testid="reload-btn"]').trigger('click');
        await flushPromises();
        expect(dealsApi.listDeals).toHaveBeenCalledTimes(2);
    });

    it('applyBulkStatus с tenant_id вызывает transitionDeals + локальный optimistic update', async () => {
        setupAuth(1);
        vi.mocked(dealsApi.listDeals).mockResolvedValueOnce({
            deals: [makeApiDeal({ id: 500, status: 'new' }), makeApiDeal({ id: 501, status: 'new' })],
            total: 2,
            limit: 20,
            offset: 0,
        });
        vi.mocked(dealsApi.transitionDeals).mockResolvedValueOnce({
            updated: 2,
            requested: 2,
            status: 'won',
        });

        const wrapper = await mountDealsView();
        await flushPromises();

        const vm = wrapper.vm as unknown as {
            selected: number[];
            applyBulkStatus: (slug: string) => Promise<void>;
            dealsState: { id: number; statusSlug: string }[];
            statusToastOpen: boolean;
            statusToastText: string;
        };
        vm.selected = [500, 501];
        await flushPromises();

        await vm.applyBulkStatus('won');
        await flushPromises();

        // Optimistic local-update применился до завершения API-вызова.
        expect(vm.dealsState.find((d) => d.id === 500)?.statusSlug).toBe('won');
        expect(vm.dealsState.find((d) => d.id === 501)?.statusSlug).toBe('won');
        expect(dealsApi.transitionDeals).toHaveBeenCalledWith({
            tenant_id: 1,
            ids: [500, 501],
            status: 'won',
        });
        expect(vm.statusToastOpen).toBe(true);
        expect(vm.statusToastText).toContain('Обновлено 2');
    });

    it('applyBulkStatus с reject → toast с warning, локальный update остаётся (не откатываем)', async () => {
        setupAuth(1);
        vi.mocked(dealsApi.listDeals).mockResolvedValueOnce({
            deals: [makeApiDeal({ id: 600, status: 'new' })],
            total: 1,
            limit: 20,
            offset: 0,
        });
        vi.mocked(dealsApi.transitionDeals).mockRejectedValueOnce(new Error('500'));

        const wrapper = await mountDealsView();
        await flushPromises();

        const vm = wrapper.vm as unknown as {
            selected: number[];
            applyBulkStatus: (slug: string) => Promise<void>;
            dealsState: { id: number; statusSlug: string }[];
            statusToastText: string;
        };
        vm.selected = [600];
        await flushPromises();
        await vm.applyBulkStatus('won');
        await flushPromises();

        expect(vm.dealsState.find((d) => d.id === 600)?.statusSlug).toBe('won');
        expect(vm.statusToastText).toContain('Не удалось');
    });
});

describe('KanbanView ↔ GET /api/deals integration', () => {
    it('БЕЗ tenant_id — listDeals не вызывается', async () => {
        setupAuth(null);
        mountKanbanView();
        await flushPromises();
        expect(dealsApi.listDeals).not.toHaveBeenCalled();
    });

    it('С tenant_id — заполняет колонки по statusSlug + обновляет totalDeals', async () => {
        setupAuth(1);
        vi.mocked(dealsApi.listDeals).mockResolvedValueOnce({
            deals: [
                makeApiDeal({ id: 300, status: 'new' }),
                makeApiDeal({ id: 301, status: 'won' }),
                makeApiDeal({ id: 302, status: 'won' }),
            ],
            total: 3,
            limit: 500,
            offset: 0,
        });

        const wrapper = mountKanbanView();
        await flushPromises();

        const vm = wrapper.vm as unknown as {
            dealsByStatus: Record<string, { id: number }[]>;
            totalDeals: number;
            fetchError: boolean;
        };
        expect(vm.dealsByStatus.new.map((d) => d.id)).toEqual([300]);
        expect(vm.dealsByStatus.won.map((d) => d.id).sort()).toEqual([301, 302]);
        expect(vm.totalDeals).toBe(3);
        expect(vm.fetchError).toBe(false);
    });

    it('listDeals reject → fetchError=true, колонки пусты', async () => {
        setupAuth(1);
        vi.mocked(dealsApi.listDeals).mockRejectedValueOnce(new Error('500'));

        const wrapper = mountKanbanView();
        await flushPromises();

        const vm = wrapper.vm as unknown as {
            dealsByStatus: Record<string, unknown[]>;
            fetchError: boolean;
        };
        expect(vm.fetchError).toBe(true);
        const filledColumns = Object.values(vm.dealsByStatus).filter((arr) => arr.length > 0);
        expect(filledColumns.length).toBe(0);
    });

    it('reload-btn вызывает listDeals второй раз', async () => {
        setupAuth(1);
        vi.mocked(dealsApi.listDeals).mockResolvedValue({
            deals: [],
            total: 0,
            limit: 500,
            offset: 0,
        });

        const wrapper = mountKanbanView();
        await flushPromises();
        expect(dealsApi.listDeals).toHaveBeenCalledTimes(1);

        await wrapper.find('[data-testid="reload-btn"]').trigger('click');
        await flushPromises();
        expect(dealsApi.listDeals).toHaveBeenCalledTimes(2);
    });
});