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

/**
 * The 9 barber-operations journeys required by the Phase 5 brief. Each
 * drives real forms against the real dev server and the seeded MySQL
 * database (migrated from Postgres in Phase 7 — see e2e/global-setup.ts /
 * prisma/seed.ts). Journeys that only
 * read data reuse the seed's fixed fixtures (today's appointments across
 * every status, Sam Osei sitting at the loyalty threshold, Leo's time off);
 * journeys that mutate state book a fresh appointment first so they don't
 * fight each other or depend on run order — the same principle
 * customer-journeys.spec.ts documents. The exceptions are the two tests
 * that intentionally chain (3 → 4, both driving the *same* fresh
 * appointment through check-in/start/complete/stamp) and the time-off
 * conflict test, which deliberately reuses the seed's untouched
 * "Marcus + Priya, later today" CONFIRMED appointment as its conflict
 * fixture.
 */

let chainedAppointmentUrl: string | null = null;

test.describe.serial("barber operations journeys", () => {
  // Journeys 8 and 9 create a break/time-off with no deterministic id for
  // the seed to upsert against, so a mid-test assertion failure (a real
  // possibility while iterating on this suite) could leave them behind and
  // break journey 1 on the *next* run — journey 1 asserts today's schedule
  // is visible, which a leftover "whole day off" row would hide. This
  // safety net removes them directly regardless of how the tests above
  // exited, on top of (not instead of) each test's own UI-driven cleanup.
  test.afterAll(async () => {
    const pool = createPool(buildMysqlPoolConfig());
    await pool.query("DELETE FROM `TimeOff` WHERE reason = 'E2E conflict test'");
    await pool.query("DELETE FROM `Break` WHERE label = 'Afternoon tea'");
    await pool.end();
  });

  test("1. barber signs in and sees today's schedule", async ({ page }) => {
    await signIn(page, SEEDED.owner.email);
    await page.goto("/staff");

    await expect(page.getByRole("heading", { name: "Calendar" })).toBeVisible();
    // Seeded: Marcus has appointments in every status today. (.first() because on
    // desktop the "Right Now" side panel repeats the in-progress customer's name.)
    await expect(page.getByText("Alex Chen").first()).toBeVisible();
    await expect(page.getByText("Sam Osei").first()).toBeVisible();
    await expect(page.getByText("IN PROGRESS").first()).toBeVisible();
  });

  test("2. barber opens the current appointment", async ({ page }) => {
    await signIn(page, SEEDED.owner.email);
    await page.goto("/staff/current");

    // Tier 1 of selectCurrentAppointment: the IN_PROGRESS row wins.
    await expect(page.getByText("Sam Osei")).toBeVisible();
    await expect(page.getByText("In Progress", { exact: true })).toBeVisible();
    await expect(page.getByText(/stamps/)).toBeVisible();
  });

  test("3. barber books, checks in, and starts an appointment", async ({ page }) => {
    await signIn(page, SEEDED.owner.email);

    await page.goto("/staff/book?q=Jordan");
    await page.getByRole("button", { name: /Jordan Blake/ }).click();

    await completeStaffBookingFlow(page, {
      serviceName: SEEDED.services.haircut,
      staffName: SEEDED.owner.name,
    });
    chainedAppointmentUrl = page.url();

    // A staff-created booking defaults to CONFIRMED (no PENDING approval step).
    await expect(page.getByText("Confirmed", { exact: true })).toBeVisible();
    await page.getByRole("button", { name: "Check In", exact: true }).click();
    await expect(page.getByText("Arrived", { exact: true })).toBeVisible();

    await page.getByRole("button", { name: "Start Appointment", exact: true }).click();
    await expect(page.getByText("In Progress", { exact: true })).toBeVisible();
  });

  test("4. barber completes the appointment and adds a loyalty stamp", async ({ page }) => {
    if (!chainedAppointmentUrl) throw new Error("journey 3 must run first to create the appointment");
    await signIn(page, SEEDED.owner.email);
    await page.goto(chainedAppointmentUrl);

    await page.getByRole("button", { name: "Complete Appointment", exact: true }).click();
    await page.getByRole("button", { name: "Complete", exact: true }).click();
    await expect(page.getByText("This appointment is marked complete.")).toBeVisible();
    // Jordan Blake has no eligibility restrictions in the seed, so completion auto-awards a stamp.
    await expect(page.getByText("A loyalty stamp was added for this visit.")).toBeVisible();
    await page.getByRole("button", { name: "Done", exact: true }).click();
    await expect(page.getByText("Completed", { exact: true })).toBeVisible();

    // The manual "Add Loyalty Stamp" action is independent of the auto-award above.
    await page.getByRole("button", { name: "Add Loyalty Stamp", exact: true }).click();
    await page.getByRole("button", { name: "Add Stamp", exact: true }).click();
    await expect(page.getByText("The stamp has been recorded on this customer's loyalty account.")).toBeVisible();
    await page.getByRole("button", { name: "Done", exact: true }).click();

    // "Book Follow-Up" only appears once COMPLETED — hand off to journey 6.
    await expect(page.getByRole("button", { name: "Book Follow-Up" })).toBeVisible();
  });

  test("5. barber finds a customer and adds a note", async ({ page }) => {
    await signIn(page, SEEDED.owner.email);

    await page.goto("/staff/clients");
    await page.getByPlaceholder("Search by name, email, or phone").fill("Osei");
    await page.keyboard.press("Enter");
    await page.getByRole("link", { name: /Sam Osei/ }).click();

    await expect(page.getByText("Sam Osei")).toBeVisible();
    const noteText = `E2E note ${Date.now()}`;
    await page.getByPlaceholder("Add a note about this customer…").fill(noteText);
    await page.getByRole("button", { name: "Add Note", exact: true }).click();
    await expect(page.getByText(noteText)).toBeVisible();
  });

  test("6. barber books a follow-up from a completed appointment", async ({ page }) => {
    if (!chainedAppointmentUrl) throw new Error("journey 4 must run first to complete the appointment");
    await signIn(page, SEEDED.owner.email);
    await page.goto(chainedAppointmentUrl);

    await page.getByRole("button", { name: "Book Follow-Up" }).click();

    // Services (and barber, if still active/bookable) are preselected from the original visit,
    // but the barber still confirms this step themselves before moving on.
    await expect(page).toHaveURL(/\/staff\/book\/services/);
    await page.getByRole("button", { name: "Continue", exact: true }).click();

    await expect(page).toHaveURL(/\/staff\/book\/barber-time/);
    await expect(page.locator("section", { hasText: "Date" }).locator("button[aria-pressed]").first()).toBeVisible();
    await page.locator("section", { hasText: "Date" }).locator("button[aria-pressed]:not([disabled])").first().click();
    await page.locator("section", { hasText: "Time" }).locator("button").first().click();
    await page.getByRole("button", { name: "Continue", exact: true }).click();

    await expect(page).toHaveURL(/\/staff\/book\/review/);
    await page.getByRole("button", { name: "Confirm Booking" }).click();
    await expect(page).toHaveURL(/\/staff\/appointments\/[^/]+$/);
    await expect(page.getByText("Jordan Blake")).toBeVisible();
  });

  test("7. barber changes their working hours", async ({ page }) => {
    await signIn(page, SEEDED.barberHaircutOnly.email);
    await page.goto("/staff/settings/working-hours");

    const sundaySwitch = page.getByRole("switch", { name: "Sunday working" });
    const wasOff = (await sundaySwitch.getAttribute("data-state")) === "unchecked";
    await sundaySwitch.click();
    await page.getByRole("button", { name: "Save", exact: true }).click();
    await expect(page.getByText("Saved.")).toBeVisible();

    await page.reload();
    const expectedState = wasOff ? "checked" : "unchecked";
    await expect(page.getByRole("switch", { name: "Sunday working" })).toHaveAttribute(
      "data-state",
      expectedState,
    );

    // Restore the seeded default so this test is repeatable. This save can itself surface an
    // unrelated conflict — the seed's own "genuinely future" fixture for Leo (see prisma/seed.ts,
    // appt-leo-future) is dated relative to whenever the seed happened to run and can
    // coincidentally land on a Sunday, which is off by default — so handle either outcome rather
    // than assuming a clean save (same pattern as owner-journeys.spec.ts journey 4's restore step).
    await page.getByRole("switch", { name: "Sunday working" }).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.");
    await expect(saveAnywayButton.or(savedStatus)).toBeVisible();
    if (await saveAnywayButton.isVisible()) {
      await saveAnywayButton.click();
    }
    await expect(savedStatus).toBeVisible();
  });

  test("8. barber adds a recurring break", async ({ page }) => {
    await signIn(page, SEEDED.barberSkinfadeBeard.email);
    await page.goto("/staff/settings/breaks");

    await page.getByRole("button", { name: "Add Break", exact: true }).click();
    const sheet = page.getByRole("dialog");
    await sheet.getByLabel("Label").fill("Afternoon tea");
    await sheet.getByLabel("Start").fill("15:30");
    await sheet.getByLabel("End").fill("15:45");
    await sheet.getByRole("button", { name: "Tue", exact: true }).click();
    await sheet.getByRole("button", { name: "Add Break", exact: true }).click();

    await expect(page.getByText("Afternoon tea")).toBeVisible();
    await expect(page.getByText(/3:30 PM–3:45 PM/)).toBeVisible();

    // Clean up — this test has no unique/deterministic id to upsert against on a re-run,
    // so leaving it behind would accumulate a duplicate break every time the suite runs.
    await page.getByText("Afternoon tea").click();
    await sheet.getByRole("button", { name: "Delete Break", exact: true }).click();
    await expect(page.getByText("Afternoon tea")).toHaveCount(0);
  });

  test("9. barber adds time off and resolves a scheduling conflict", async ({ page }) => {
    await signIn(page, SEEDED.owner.email);
    await page.goto("/staff/settings/time-off");

    const now = new Date();
    const today = `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, "0")}-${String(now.getDate()).padStart(2, "0")}`;

    await page.getByRole("button", { name: "Add Time Off", exact: true }).click();
    const sheet = page.getByRole("dialog");
    await sheet.getByLabel("Start date").fill(today);
    await sheet.getByLabel("End date").fill(today);
    await sheet.getByLabel("Reason (optional)").fill("E2E conflict test");
    await sheet.getByRole("button", { name: "Add Time Off", exact: true }).click();

    // Seeded: Marcus has a CONFIRMED appointment with Priya Kapoor later today — a real conflict.
    await expect(sheet.getByText(/overlaps \d+ existing appointment/)).toBeVisible();
    await expect(sheet.getByText("Priya Kapoor")).toBeVisible();

    await sheet.getByRole("button", { name: "Save Anyway", exact: true }).click();
    await expect(page.getByText("E2E conflict test")).toBeVisible();

    // The conflicting appointment itself is untouched — never silently cancelled. (The
    // calendar's own day view now shows "You're off this day" instead of the appointment
    // list, since Marcus just marked the whole day as time off — a separate, deliberate
    // UI choice, not a sign the appointment was cancelled.)
    await page.goto("/staff/clients");
    await page.getByPlaceholder("Search by name, email, or phone").fill("Priya");
    await page.keyboard.press("Enter");
    await page.getByRole("link", { name: /Priya Kapoor/ }).click();
    await expect(page.getByRole("tab", { name: "Upcoming" })).toHaveAttribute("data-state", "active");
    await expect(page.getByText(SEEDED.services.haircut).first()).toBeVisible();
    await expect(page.getByText("Confirmed", { exact: true }).first()).toBeVisible();

    // Clean up — this test has no unique/deterministic id to upsert against on a re-run,
    // so leaving Marcus marked off today would break journey 1's assertions next time.
    await page.goto("/staff/settings/time-off");
    await page.getByText("E2E conflict test").click();
    const editSheet = page.getByRole("dialog");
    await editSheet.getByRole("button", { name: "Remove Time Off", exact: true }).click();
    await expect(page.getByText("E2E conflict test")).toHaveCount(0);
  });

  test("10. barber receives a new-booking notification", async ({ page }) => {
    // Deliberately books its own fresh appointment rather than relying on journey 3's — every
    // other independent journey in this file follows that same "book a fresh appointment first"
    // rule (see this file's header comment), and this one was the exception, which made it fail
    // in confusing ways whenever it ran outside the full serial file (e.g. `-g` filtering past
    // journey 3). See NotificationService/booking-notifications.ts, notifyBookingCreated, which
    // queues STAFF_NEW_APPOINTMENT for the assigned barber on every booking.
    await signIn(page, SEEDED.owner.email);

    await page.goto("/staff/book?q=Jordan");
    await page.getByRole("button", { name: /Jordan Blake/ }).click();
    await completeStaffBookingFlow(page, {
      serviceName: SEEDED.services.haircut,
      staffName: SEEDED.owner.name,
    });

    await page.goto("/staff");
    const bell = page.getByRole("link", { name: /Notifications, \d+ unread/ });
    await expect(bell).toBeVisible();
    await bell.click();

    await expect(page).toHaveURL(/\/staff\/notifications/);
    await expect(page.getByText("New appointment").first()).toBeVisible();
    await expect(page.getByText(/Jordan Blake/).first()).toBeVisible();
  });
});