import { expect, test } from "@playwright/test";
import { createPool } from "mariadb";
import { buildMysqlPoolConfig } from "../src/lib/db/mysql-pool-config";
import { SEEDED, completeBookingFlow, signIn, uniqueEmail } from "./helpers";

/**
 * The 12 owner-administration journeys required by the Phase 6 brief. Same
 * principles as staff-journeys.spec.ts: real forms against the real dev
 * server and seeded MySQL (migrated from Postgres in Phase 7), `test.describe.serial` because several
 * journeys deliberately chain or share seeded fixtures (Marcus Reed is
 * both the seeded owner *and* a working barber — see prisma/seed.ts), and
 * every mutation a test makes to shared configuration (business details,
 * opening hours, booking rules, loyalty config) is restored at the end of
 * that same test so later journeys — and later re-runs — see the same
 * starting state. The one exception is journey 10 (redeem reward), which
 * consumes the seed's one-time AVAILABLE reward for Sam Osei; that's a
 * deliberate one-shot fixture, same category as staff-journeys.spec.ts's
 * own booking journeys.
 */

test.describe.serial("owner administration journeys", () => {
  test.afterAll(async () => {
    const pool = createPool(buildMysqlPoolConfig(process.env.DATABASE_URL));
    // Journey 7 creates a category/service with no deterministic id to
    // upsert against on a re-run — clean up by name instead.
    await pool.query("DELETE FROM `Service` WHERE name LIKE 'E2E Test Service%'");
    await pool.query("DELETE FROM `ServiceCategory` WHERE name LIKE 'E2E Test Category%'");
    // Journey 5 adds a real staff member (User+StaffProfile+StaffInvitation) with no
    // deterministic id either — deleting the User cascades to the rest.
    await pool.query("DELETE FROM `User` WHERE email LIKE 'e2e-new-barber-%@e2e-test.local'");
    await pool.end();
  });

  test("1. owner sees a real, data-backed dashboard with configuration warnings", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner");

    // The Manage hub's H1 (see (owner)/owner/page.tsx) — Dashboard content
    // is shown first/most prominently inside it rather than on its own
    // page, per the merged-nav brief's "Dashboard placement" requirement.
    await expect(page.getByRole("heading", { name: "Manage" })).toBeVisible();
    // Seeded fixtures from prisma/seed.ts: Owen Clarke has no working hours,
    // and "Kids Haircut (Under 12)" has no eligible active staff member.
    await expect(page.getByText("Owen Clarke has no working hours set")).toBeVisible();
    await expect(page.getByText(/no active staff member is eligible to perform it/)).toBeVisible();
    await expect(page.getByText("Staff Today")).toBeVisible();
    // Scoped exact match — "Marcus Reed" can otherwise also match a Recent Loyalty
    // Activity line naming him as the staff member who redeemed a reward.
    await expect(page.getByText("Marcus Reed", { exact: true })).toBeVisible();
    await expect(page.getByText("Popular Services")).toBeVisible();
  });

  test("2. owner views the all-staff calendar, filters by staff, and switches to agenda", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner/calendar");

    await expect(page.getByRole("heading", { name: "Calendar" })).toBeVisible();
    // The staff filter pills are avatar+name+hours cards now, so their
    // accessible name is "Marcus Reed 10:00 AM – 7:00 PM" etc — a
    // substring match (Playwright's default, no `exact`) still uniquely
    // identifies each pill's link.
    await expect(page.getByRole("link", { name: "Marcus Reed" })).toBeVisible();
    await expect(page.getByRole("link", { name: "Leo Vance" })).toBeVisible();

    // Filtering to one staff member narrows the day view to a single column.
    await page.getByRole("link", { name: "Leo Vance" }).click();
    await expect(page).toHaveURL(/staffId=/);
    // The single remaining day-view column is headed by a <p> with the staff member's exact name
    // — the staff filter pill above it is *also* an avatar+name+hours card with its own <p> of the
    // same text now, so scope to the grid itself (data-testid="calendar-grid") to disambiguate.
    await expect(page.getByTestId("calendar-grid").locator("p").getByText("Leo Vance", { exact: true })).toBeVisible();

    await page.getByRole("link", { name: "Agenda", exact: true }).click();
    await expect(page).toHaveURL(/view=agenda/);
    await expect(page.getByRole("link", { name: "Day", exact: true })).toBeVisible();

    await page.getByRole("link", { name: "All Staff" }).click();
    await expect(page).not.toHaveURL(/staffId=/);
  });

  test("3. owner edits business details and the change persists", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner/settings/business");

    await expect(page.getByRole("heading", { name: "Business Details" })).toBeVisible();
    const nameInput = page.getByLabel("Business Name");
    await expect(nameInput).toHaveValue("Blake Heritage Barbershop");

    await nameInput.fill("Blake Heritage Barbershop (E2E edited)");
    await page.getByRole("button", { name: "Save", exact: true }).click();
    await expect(page.getByText("Saved — changes are live for customers immediately.")).toBeVisible();

    await page.reload();
    await expect(page.getByLabel("Business Name")).toHaveValue("Blake Heritage Barbershop (E2E edited)");

    // Restore the seeded name so later runs (and other journeys) see the original.
    await page.getByLabel("Business Name").fill("Blake Heritage Barbershop");
    await page.getByRole("button", { name: "Save", exact: true }).click();
    await expect(page.getByText("Saved — changes are live for customers immediately.")).toBeVisible();
  });

  test("4. owner tightens opening hours, reviews the appointment conflict, and saves anyway without cancelling it", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");

    // Marcus and Leo each have a seeded future CONFIRMED appointment (see
    // prisma/seed.ts, appt-upcoming-confirmed / appt-leo-future). Those rows
    // are upserted by a deterministic id, so on a database that already had
    // them from an earlier seed run their date is whatever it was back
    // then, not necessarily still "N days from today" — read the real date
    // straight from the database instead of predicting it from wall-clock time.
    const pool = createPool(buildMysqlPoolConfig(process.env.DATABASE_URL));
    const rows = await pool.query<{ id: string; start_at: Date; first_name: string; last_name: string }[]>(
      "SELECT a.id, a.startAt as start_at, c.firstName as first_name, c.lastName as last_name" +
        " FROM Appointment a JOIN CustomerProfile c ON c.id = a.customerId" +
        " WHERE a.id LIKE '%-appt-upcoming-confirmed' OR a.id LIKE '%-appt-leo-future'" +
        " ORDER BY a.startAt ASC",
    );
    await pool.end();
    if (rows.length === 0) throw new Error("Seeded opening-hours conflict fixtures not found — check prisma/seed.ts");

    // Prefer a fixture that doesn't fall on Sunday (already closed by default) so toggling it
    // off is a genuine change; fall back to whichever fixture exists if only one does.
    const candidate =
      rows.find((r) => r.start_at.toLocaleDateString("en-GB", { weekday: "long" }) !== "Sunday") ?? rows[0]!;
    const targetDay = candidate.start_at.toLocaleDateString("en-GB", { weekday: "long" });
    const expectedCustomer = `${candidate.first_name} ${candidate.last_name}`;

    await page.goto("/owner/settings/hours");
    await expect(page.getByRole("heading", { name: "Opening Hours" })).toBeVisible();

    await page.getByRole("switch", { name: `${targetDay} open` }).click();
    await page.getByRole("button", { name: "Save", exact: true }).click();

    await expect(page.getByText(/would leave \d+ upcoming appointment/)).toBeVisible();
    await expect(page.getByText(expectedCustomer)).toBeVisible();

    await page.getByRole("button", { name: "Save Anyway", exact: true }).click();
    await expect(page.getByText("Saved. The booking engine reflects these hours immediately.")).toBeVisible();

    // The conflicting appointment itself is untouched — never silently cancelled.
    await page.reload();
    await expect(page.getByRole("switch", { name: `${targetDay} open` })).toHaveAttribute("data-state", "unchecked");

    // Restore the seeded default (open 10:00-19:00) so later runs see the same starting state.
    // This save can itself surface an unrelated conflict — one of the seed's own "today"
    // fixtures (see prisma/seed.ts) is timed relative to whenever the seed happened to run,
    // and can coincidentally fall just before the business's 10:00 opening — so handle either
    // outcome rather than assuming a clean save.
    await page.getByRole("switch", { name: `${targetDay} open` }).click();
    await page.getByRole("button", { name: "Save", exact: true }).click();
    const saveAnywayButton = page.getByRole("button", { name: "Save Anyway", exact: true });
    const savedStatus = page.getByText("Saved. The booking engine reflects these hours immediately.");
    await expect(saveAnywayButton.or(savedStatus)).toBeVisible();
    if (await saveAnywayButton.isVisible()) {
      await saveAnywayButton.click();
    }
    await expect(savedStatus).toBeVisible();
  });

  test("5. owner adds a new barber and gets a dev invite link", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner/team/add");

    await expect(page.getByRole("heading", { name: "Add Staff" })).toBeVisible();
    const email = uniqueEmail("e2e-new-barber");
    const name = `E2E New Barber ${Date.now()}`;
    await page.getByLabel("Name").fill(name);
    await page.getByLabel("Email").fill(email);
    await page.getByRole("button", { name: "Add Staff Member", exact: true }).click();

    await expect(page.getByText(`${name} has been added.`)).toBeVisible();
    await expect(page.getByText(/\/invite\/accept\?token=/)).toBeVisible();

    await page.getByRole("button", { name: "Done", exact: true }).click();
    await expect(page).toHaveURL(/\/owner\/team$/);
    await page.getByPlaceholder("Search by name or email").fill(name);
    await page.keyboard.press("Enter");
    await expect(page.getByRole("link", { name: new RegExp(name) })).toBeVisible();
  });

  test("6. owner changes a barber's role and service eligibility", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner/team?q=Jamie");
    await page.getByRole("link", { name: /Jamie Wallace/ }).click();

    await expect(page.getByRole("heading", { name: "Jamie Wallace", level: 2 })).toBeVisible();

    // Round-trip the role: Barber -> Owner -> Barber, confirming the save
    // path (and last-owner protection isn't a factor for a non-owner).
    const roleSelect = page.getByLabel("Role");
    await expect(roleSelect).toHaveValue(/.+/);
    await roleSelect.selectOption({ label: "Owner" });
    await page.getByRole("button", { name: "Save Role", exact: true }).click();
    await expect(page.getByText("Saved.").first()).toBeVisible();

    await page.reload();
    await page.getByLabel("Role").selectOption({ label: "Barber" });
    await page.getByRole("button", { name: "Save Role", exact: true }).click();
    await expect(page.getByText("Saved.").first()).toBeVisible();

    // Jamie isn't seeded eligible for Haircut & Style — add it, save, then remove it again.
    const haircutCheckbox = page.getByRole("checkbox", { name: SEEDED.services.haircut });
    await expect(haircutCheckbox).not.toBeChecked();
    await haircutCheckbox.check();
    await page.getByRole("button", { name: "Save Services", exact: true }).click();
    await expect(page.getByText("Saved.").first()).toBeVisible();

    await page.reload();
    await page.getByRole("checkbox", { name: SEEDED.services.haircut }).uncheck();
    await page.getByRole("button", { name: "Save Services", exact: true }).click();
    await expect(page.getByText("Saved.").first()).toBeVisible();
  });

  test("7. owner creates a service category and service, visible immediately on the customer booking flow", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner/services");
    await expect(page.getByRole("heading", { name: "Services", exact: true })).toBeVisible();

    const categoryName = `E2E Test Category ${Date.now()}`;
    await page.getByPlaceholder("New category name").fill(categoryName);
    await page.getByRole("button", { name: "Add Category", exact: true }).click();
    await expect(page.getByRole("heading", { name: categoryName, level: 3 })).toBeVisible();

    const categorySection = page.locator("section").filter({ has: page.getByRole("heading", { name: categoryName, level: 3 }) });
    await categorySection.getByRole("button", { name: "Add Service", exact: true }).click();

    const serviceName = `E2E Test Service ${Date.now()}`;
    const sheet = page.getByRole("dialog");
    await sheet.getByLabel("Name").fill(serviceName);
    await sheet.getByLabel("Duration (min)").fill("30");
    await sheet.getByLabel("Price").fill("15.00");
    await sheet.getByRole("button", { name: "Add Service", exact: true }).click();

    await expect(page.getByText(serviceName)).toBeVisible();

    // The new service is immediately bookable by customers.
    await page.goto("/book");
    await expect(page.getByRole("button", { name: new RegExp(`^${serviceName}`) })).toBeVisible();
  });

  test("8. owner requires booking approval, and a new customer booking reflects it immediately", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner/settings/booking-rules");
    await expect(page.getByRole("heading", { name: "Booking Rules" })).toBeVisible();

    const approvalSwitch = page.getByRole("switch", { name: "Require approval for new bookings" });
    await expect(approvalSwitch).toHaveAttribute("data-state", "unchecked");
    await approvalSwitch.click();
    await page.getByRole("button", { name: "Save", exact: true }).click();
    await expect(page.getByText(/Saved — the customer booking flow uses these rules immediately/)).toBeVisible();

    // A fresh guest booking now lands as PENDING, not CONFIRMED. Sign out first —
    // signed in as Marcus, /book/details books as him rather than showing guest fields.
    // Wait for the save's background requests to fully settle before clearing cookies:
    // otherwise a still-in-flight response can re-set the session cookie right after
    // it's cleared (a real race, confirmed by reproducing it outside Playwright too).
    await page.waitForLoadState("networkidle");
    await page.context().clearCookies();
    await page.goto("/book");
    await completeBookingFlow(page, {
      serviceName: SEEDED.services.beardTrim,
      guest: {
        firstName: "E2E",
        lastName: "ApprovalTest",
        email: uniqueEmail("e2e-approval"),
        phone: "+44 7700 900111",
      },
    });
    await expect(page.getByText("Pending Approval")).toBeVisible();

    // Restore the seeded default so later journeys (and re-runs) see auto-confirmed bookings again.
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner/settings/booking-rules");
    await page.getByRole("switch", { name: "Require approval for new bookings" }).click();
    await page.getByRole("button", { name: "Save", exact: true }).click();
    await expect(page.getByText(/Saved — the customer booking flow uses these rules immediately/)).toBeVisible();
  });

  test("9. owner configures the loyalty programme", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner/settings/loyalty");
    await expect(page.getByRole("heading", { name: "Loyalty Programme" })).toBeVisible();

    const stampsInput = page.getByLabel("Stamps required for reward");
    await expect(stampsInput).toHaveValue("10");
    await stampsInput.fill("8");
    await page.getByRole("button", { name: "Save", exact: true }).click();
    await expect(page.getByText("Saved.").first()).toBeVisible();

    await page.reload();
    await expect(page.getByLabel("Stamps required for reward")).toHaveValue("8");

    // Restore the seeded default.
    await page.getByLabel("Stamps required for reward").fill("10");
    await page.getByRole("button", { name: "Save", exact: true }).click();
    await expect(page.getByText("Saved.").first()).toBeVisible();
  });

  test("10. owner redeems a customer's available loyalty reward on an appointment", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner/calendar?view=agenda");

    // Seeded: Sam Osei has a CHECKED_IN appointment with Leo today, and sits
    // exactly at the loyalty reward threshold with one AVAILABLE reward.
    // This page renders agenda cards via AppointmentCard -> Card (see
    // components/ui/card.tsx), whose root class is `rounded-md` — not
    // `rounded-jumbo`, which was never an actual class anywhere in this
    // app (see findAppointmentCard in helpers.ts, which had the same bug).
    const card = page.locator(".rounded-md").filter({ hasText: "Sam Osei" }).filter({ hasText: "Arrived" });
    await card.getByRole("link", { name: "View", exact: true }).click();

    await expect(page.getByText(/Subtotal/)).toBeVisible();
    await page.getByRole("button", { name: "Redeem Reward", exact: true }).click();

    const modal = page.getByRole("dialog");
    await expect(modal.getByText(/This can't be undone/)).toBeVisible();
    await modal.getByRole("button", { name: "Apply Reward", exact: true }).click();
    await expect(modal.getByText(/has been applied to this appointment/)).toBeVisible();
    await modal.getByRole("button", { name: "Done", exact: true }).click();

    await expect(page.getByText("Loyalty reward")).toBeVisible();
  });

  test("11. a barber without MANAGE_STAFF is denied access to owner administration", async ({ page }) => {
    await signIn(page, SEEDED.barberHaircutOnly.email, "password123");

    await page.goto("/owner");
    await expect(page).toHaveURL(/\/staff$/);
    await expect(page.getByRole("heading", { name: "Calendar" })).toBeVisible();
    await expect(page.getByRole("heading", { name: "Manage" })).toHaveCount(0);
  });

  test("12. the owner reaches barber tools straight from the merged nav — no mode switch", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner");

    // The old "Switch to Owner Admin"/"Switch to Barber Tools" links are
    // gone (see the merged-nav brief) — an owner reaches their own barber
    // tools via the same "Now" nav item a barber uses, not a mode switch.
    await expect(page.getByText("Barber Tools")).toHaveCount(0);
    await expect(page.getByText("Switch to Barber Tools")).toHaveCount(0);
    await page.getByRole("link", { name: "Now", exact: true }).first().click();
    await expect(page).toHaveURL(/\/staff\/current$/);
    await expect(page.getByRole("link", { name: "Settings", exact: true }).first()).toBeVisible();
  });

  test("13. owner reports show real, data-backed appointment/service/staff/customer/loyalty/notification figures", async ({ page }) => {
    await signIn(page, SEEDED.owner.email, "password123");
    await page.goto("/owner");
    // "View Reports" was the old Dashboard footer's button label; Reports is
    // now one of the Manage hub's grouped sections (see (owner)/owner/page.tsx).
    await page.getByRole("link", { name: "Reports", exact: true }).click();
    await expect(page).toHaveURL(/\/owner\/reports/);

    await expect(page.getByRole("heading", { name: "Reports", exact: true })).toBeVisible();
    // The section labels are <h2>s — role-scoped so the owner sidebar's
    // own "Services" link (same text) doesn't collide (strict-mode violation).
    for (const heading of ["Appointments", "Services", "Staff", "Customers", "Loyalty", "Notifications"]) {
      await expect(page.getByRole("heading", { name: heading, exact: true, level: 2 })).toBeVisible();
    }
    // Seeded fixtures guarantee at least one completed Haircut & Style —
    // real aggregated data, not an empty-state placeholder.
    await expect(page.getByText("Haircut & Style")).toBeVisible();

    // The 7/30/90-day presets are real links, not decoration.
    await page.getByRole("link", { name: "Last 7 days" }).click();
    await expect(page).toHaveURL(/from=.*to=/);
    await expect(page.getByRole("heading", { name: "Reports" })).toBeVisible();
  });
});