import { expect, test, type Page, type Route } from "@playwright/test";

const TEST_USER = {
  token: "vendor-operations-e2e-token",
  expiration: new Date(Date.now() + 60 * 60 * 1000).toISOString(),
  email: "admin@seahavenind.com",
  userRoles: "Admin",
  phoneNumber: "5551234567",
  fullname: "Vendor Operations Admin",
  id: "1",
};

async function fulfillJson(route: Route, body: unknown, status = 200) {
  await route.fulfill({ status, contentType: "application/json", body: JSON.stringify(body) });
}

async function authenticate(page: Page) {
  await page.addInitScript((user) => localStorage.setItem("auth", JSON.stringify(user)), TEST_USER);
  await page.route("**/api/Dashboard/Stats", (route) =>
    fulfillJson(route, {
      data: {
        openWorkOrders: 0,
        pendingApprovals: 0,
        scheduledPMs: 0,
        activeAssets: 0,
      },
    }),
  );
  await page.route("**/api/User*", (route) => fulfillJson(route, { data: [] }));
}

test.describe("Vendor operations", () => {
  test("keeps the most specific vendor navigation item exclusively current", async ({ page }) => {
    await authenticate(page);
    await page.route("**/api/vendor-operations/insights*", (route) =>
      fulfillJson(route, { data: [] }),
    );

    await page.goto("/vendors/insights");

    const vendorLinks = page.locator('a[href^="/vendors"]');
    await expect(
      vendorLinks.filter({ has: page.getByText("Vendor Insights", { exact: true }) }),
    ).toHaveAttribute("aria-current", "page");
    await expect(
      vendorLinks.filter({ has: page.getByText("Vendors", { exact: true }) }),
    ).not.toHaveAttribute("aria-current", "page");
    await expect(
      vendorLinks.filter({ has: page.getByText("Site Preferences", { exact: true }) }),
    ).not.toHaveAttribute("aria-current", "page");
  });

  test("keeps Vendor PO controls usable at a constrained viewport", async ({ page }) => {
    await page.setViewportSize({ width: 700, height: 900 });
    await authenticate(page);
    await page.route("**/api/dispatches*", (route) => fulfillJson(route, { items: [], total: 0 }));
    await page.route("**/api/Vendor/GetVendorList*", (route) =>
      fulfillJson(route, { Data: [], TotalCount: 0 }),
    );

    await page.goto("/vendor-pos");

    await expect(page.getByRole("heading", { name: "Vendor POs" })).toBeVisible();
    await expect(page.getByText("0 total", { exact: true })).toBeVisible();
    await expect(page.getByPlaceholder("Search PO #, dispatch, vendor, WO...")).toBeVisible();
    await expect(page.locator("label").filter({ hasText: /^Status$/ })).toBeVisible();
    await expect(page.locator("label").filter({ hasText: /^Vendor$/ })).toBeVisible();
    await expect(page.getByLabel("From", { exact: true })).toBeVisible();
    await expect(page.getByLabel("To", { exact: true })).toBeVisible();
    await expect(page.getByRole("button", { name: "Clear filters" })).toBeVisible();

    await expect
      .poll(() =>
        page
          .getByPlaceholder("Search PO #, dispatch, vendor, WO...")
          .evaluate((element) => element.clientWidth),
      )
      .toBeGreaterThanOrEqual(280);
  });

  test("groups 48-hour reminders and overlap conflicts with direct work-order actions", async ({
    page,
  }) => {
    await authenticate(page);
    await page.route("**/api/vendor-operations/notifications", (route) =>
      fulfillJson(route, {
        items: [
          {
            id: "no-vendor-501",
            type: "NoVendor",
            severity: "Medium",
            group: "No Vendor",
            title: "No vendor assigned — 48h to service",
            workOrderId: 501,
            workOrderNumber: "WO-501",
            triggeredAt: "2026-07-23T12:00:00Z",
            scheduledAt: "2026-07-25T12:00:00Z",
            action: { label: "Choose vendor", href: "/workorders/edit/501?assignVendor=1" },
          },
          {
            id: "vendor-conflict-801-802",
            type: "VendorConflict",
            severity: "Medium",
            group: "Vendor Conflict",
            title: "Vendor has overlapping appointments",
            triggeredAt: "2026-07-23T12:00:00Z",
            workOrders: [
              {
                workOrderId: 501,
                workOrderNumber: "WO-501",
                start: "2026-07-25T12:00:00Z",
                end: "2026-07-25T14:00:00Z",
              },
              {
                workOrderId: 502,
                workOrderNumber: "WO-502",
                start: "2026-07-25T13:00:00Z",
                end: "2026-07-25T15:00:00Z",
              },
            ],
            actions: [
              { label: "WO-501", href: "/workorders/501" },
              { label: "WO-502", href: "/workorders/502" },
            ],
          },
        ],
      }),
    );

    await page.goto("/notifications");

    await expect(page.getByRole("heading", { name: "Items requiring attention" })).toBeVisible();
    await expect(page.getByRole("heading", { name: "No Vendor" })).toBeVisible();
    await expect(page.getByRole("heading", { name: "Vendor Conflict" })).toBeVisible();
    await expect(page.getByRole("link", { name: "Choose vendor" })).toHaveAttribute(
      "href",
      "/workorders/edit/501?assignVendor=1",
    );
    await expect(page.getByRole("link", { name: "WO-501" })).toHaveAttribute(
      "href",
      "/workorders/501",
    );
    await expect(page.getByRole("link", { name: "WO-502" })).toHaveAttribute(
      "href",
      "/workorders/502",
    );
  });

  test("filters insights and exposes both export formats", async ({ page }) => {
    await authenticate(page);
    const requestedUrls: string[] = [];
    await page.route("**/api/vendor-operations/insights*", async (route) => {
      requestedUrls.push(route.request().url());
      const { pathname } = new URL(route.request().url());
      if (pathname.endsWith(".csv")) {
        await route.fulfill({ status: 200, contentType: "text/csv", body: "Vendor,Completed\n" });
        return;
      }
      if (pathname.endsWith(".pdf")) {
        await route.fulfill({ status: 200, contentType: "application/pdf", body: "%PDF-1.4" });
        return;
      }
      await fulfillJson(route, {
        data: [
          {
            vendorId: 7,
            vendor: "Gateway Plumbing",
            completedJobs: 12,
            cancellationRefusalRate: 0.1,
            onTimeArrivalRate: 0.9,
            onTimeCompletionRate: 0.8,
            averageCycleHours: 5.5,
          },
        ],
      });
    });

    await page.goto("/vendors/insights");

    await expect(page.getByRole("cell", { name: "Gateway Plumbing" })).toBeVisible();
    await page.getByLabel("From", { exact: true }).fill("2026-01-01");
    await page.getByLabel("To", { exact: true }).fill("2026-01-31");
    await page.getByLabel("Trade", { exact: true }).fill("Plumbing");

    const insightsQueryHas = (name: string, value: string) =>
      requestedUrls.some(
        (url) =>
          new URL(url).pathname.endsWith("/insights") &&
          new URL(url).searchParams.get(name) === value,
      );
    await expect.poll(() => insightsQueryHas("from", "2026-01-01")).toBe(true);
    await expect.poll(() => insightsQueryHas("to", "2026-01-31")).toBe(true);
    await expect.poll(() => insightsQueryHas("trade", "Plumbing")).toBe(true);

    await page.getByRole("button", { name: "Export CSV" }).click();
    await page.getByRole("button", { name: "Export PDF" }).click();

    const exportRequest = (format: "csv" | "pdf") =>
      requestedUrls.find((url) => new URL(url).pathname.endsWith(`/insights.${format}`));
    const exportHasFilters = (url: string | undefined) => {
      if (!url) return false;
      const params = new URL(url).searchParams;
      return (
        params.get("from") === "2026-01-01" &&
        params.get("to") === "2026-01-31" &&
        params.get("trade") === "Plumbing"
      );
    };

    await expect.poll(() => exportHasFilters(exportRequest("csv"))).toBe(true);
    await expect.poll(() => exportHasFilters(exportRequest("pdf"))).toBe(true);
  });

  test("reorders and saves preferred vendors for a site", async ({ page }) => {
    await authenticate(page);
    let savedPreferences: unknown;
    await page.route("**/api/Contact/GetLocations", (route) =>
      fulfillJson(route, { data: [{ Id: 10, Name: "St. Louis HQ" }] }),
    );
    await page.route("**/api/Vendor/Dropdown*", (route) =>
      fulfillJson(route, {
        data: [
          { Id: 7, CompanyName: "Gateway Plumbing", TradeSpecialties: "Plumbing" },
          { Id: 8, CompanyName: "Metro HVAC", TradeSpecialties: "HVAC" },
        ],
      }),
    );
    await page.route("**/api/vendor-operations/sites/10/preferred-vendors", async (route) => {
      if (route.request().method() === "PUT") {
        savedPreferences = route.request().postDataJSON();
        await fulfillJson(route, savedPreferences);
        return;
      }
      await fulfillJson(route, [
        {
          id: 1,
          locationId: 10,
          vendorId: 7,
          vendorName: "Gateway Plumbing",
          trade: "Plumbing",
          sortOrder: 0,
          isStale: false,
        },
        {
          id: 2,
          locationId: 10,
          vendorId: 8,
          vendorName: "Metro HVAC",
          trade: "HVAC",
          sortOrder: 1,
          isStale: false,
        },
      ]);
    });

    await page.goto("/vendors/preferences");
    await page.getByLabel("Site").click();
    await page.getByRole("option", { name: "St. Louis HQ" }).click();
    await expect(page.getByText(/1\. Gateway Plumbing/)).toBeVisible();
    await page.getByRole("button", { name: "Move Metro HVAC up" }).click();
    await expect(page.getByText(/1\. Metro HVAC/)).toBeVisible();
    await page.getByRole("button", { name: "Save preferences" }).click();

    await expect
      .poll(() => savedPreferences)
      .toEqual([
        { vendorId: 8, trade: "HVAC", sortOrder: 0 },
        { vendorId: 7, trade: "Plumbing", sortOrder: 1 },
      ]);
  });

  test("creates a work order and assigns the selected technician with ETA", async ({ page }) => {
    await authenticate(page);
    let assignment: unknown;

    await page.route("**/api/Contact/GetLocations", (route) =>
      fulfillJson(route, { data: [{ Id: 10, Name: "St. Louis HQ" }] }),
    );
    await page.route("**/api/Employee/Dropdown", (route) => fulfillJson(route, { data: [] }));
    await page.route("**/api/DropdownOptions/ByCategory/**", (route) =>
      fulfillJson(route, { data: [] }),
    );
    await page.route("**/api/vendor-operations/availability*", (route) =>
      fulfillJson(route, {
        data: [
          {
            id: 7,
            companyName: "Gateway Plumbing",
            contactName: "Taylor Tech",
            availabilityStatus: "Available",
            isPreferred: true,
            conflicts: [],
          },
        ],
      }),
    );
    await page.route("**/api/WorkOrder/AddWorkorder", (route) =>
      fulfillJson(route, {
        data: {
          Id: 900,
          WorkerOrderTitle: "Boiler repair",
          LocationId: 10,
          Priority: "Sev 1",
          Status: "Open",
          Comments: [],
          AuditLog: [],
          Dispatches: [],
        },
      }),
    );
    await page.route("**/api/vendor-operations/work-orders/900/assignment", async (route) => {
      assignment = route.request().postDataJSON();
      await fulfillJson(route, {
        availabilityStatus: "Available",
        conflicts: [
          {
            workOrderId: 502,
            workOrderNumber: "WO-502",
            start: "2026-07-25T12:00:00Z",
            end: "2026-07-25T14:00:00Z",
          },
        ],
      });
    });
    await page.route("**/api/WorkOrder/GetWorkorderById*", (route) =>
      fulfillJson(route, {
        data: {
          Id: 900,
          WorkerOrderTitle: "Boiler repair",
          LocationId: 10,
          Priority: "Sev 1",
          Status: "Open",
          Comments: [],
          AuditLog: [],
          Dispatches: [],
        },
      }),
    );

    await page.goto("/workorders/new");
    await page.getByLabel("Title").fill("Boiler repair");
    await page.getByLabel("Location").click();
    await page.getByRole("option", { name: "St. Louis HQ" }).click();
    await page.getByLabel("Priority").click();
    await page.getByRole("option", { name: "Sev 1" }).click();
    await page.getByLabel("Scheduled").fill("2026-07-25");
    await page.getByLabel("Appointment start").fill("2026-07-25T10:00");
    await page.getByLabel("Appointment end").fill("2026-07-25T12:00");
    await page.getByLabel("Company + Technician").click();
    await page.getByRole("option", { name: /Gateway Plumbing · Taylor Tech/ }).click();
    await page.getByLabel("Assignment ETA").fill("2026-07-25T08:30");
    await page.getByLabel("Manual ETA override").check();
    await page.getByRole("button", { name: "Create" }).click();

    await expect
      .poll(() => assignment)
      .toEqual({
        vendorId: 7,
        scheduledStart: "2026-07-25T10:00:00.000Z",
        scheduledEnd: "2026-07-25T12:00:00.000Z",
        estimatedArrivalAt: "2026-07-25T08:30:00.000Z",
        etaManualOverride: true,
      });
    await expect(page.getByText(/scheduling conflict/i)).toBeVisible();
    await expect(page).toHaveURL(/\/workorders\/900$/);
  });

  test("preserves an existing ETA when editing in a non-UTC timezone", async ({ browser }) => {
    const context = await browser.newContext({ timezoneId: "America/New_York" });
    const page = await context.newPage();
    await authenticate(page);
    let assignment: Record<string, unknown> | undefined;

    const workOrder = {
      Id: 901,
      WorkerOrderTitle: "Boiler repair",
      LocationId: 10,
      Priority: "Sev 1",
      Status: "Open",
      CreatedDate: "2026-07-20",
      ScheduledDate: "2026-07-25",
      Comments: [],
      AuditLog: [],
      Dispatches: [
        {
          Id: 44,
          VendorId: 7,
          Status: "Acknowledged",
          EstimatedArrivalAt: "2026-07-25T12:30:00.000Z",
          EtaManualOverride: true,
        },
      ],
    };

    await page.route("**/api/Contact/GetLocations", (route) =>
      fulfillJson(route, { data: [{ Id: 10, Name: "St. Louis HQ" }] }),
    );
    await page.route("**/api/Employee/Dropdown", (route) => fulfillJson(route, { data: [] }));
    await page.route("**/api/DropdownOptions/ByCategory/**", (route) =>
      fulfillJson(route, { data: [] }),
    );
    await page.route("**/api/vendor-operations/availability*", (route) =>
      fulfillJson(route, {
        data: [
          {
            id: 7,
            companyName: "Gateway Plumbing",
            contactName: "Taylor Tech",
            availabilityStatus: "Available",
            isPreferred: true,
            conflicts: [],
          },
        ],
      }),
    );
    await page.route("**/api/WorkOrder/GetWorkorderById*", (route) =>
      fulfillJson(route, { data: workOrder }),
    );
    await page.route("**/api/WorkOrder/EditWorkorder", (route) =>
      fulfillJson(route, { data: workOrder }),
    );
    await page.route("**/api/vendor-operations/work-orders/901/assignment", async (route) => {
      assignment = route.request().postDataJSON() as Record<string, unknown>;
      await fulfillJson(route, { availabilityStatus: "Available", conflicts: [] });
    });

    await page.goto("/workorders/edit/901");
    await expect(page.getByLabel("Assignment ETA")).toHaveValue("2026-07-25T08:30");
    await page.getByRole("button", { name: "Update" }).click();

    await expect.poll(() => assignment?.estimatedArrivalAt).toBe("2026-07-25T12:30:00.000Z");
    await context.close();
  });

  test("converts explicit local schedule bounds to the correct UTC instants across a DST transition", async ({
    browser,
  }) => {
    // America/New_York springs forward on 2026-03-08 at 02:00 EST -> 03:00 EDT.
    // The window below straddles the transition: 01:00 is EST (UTC-5) while
    // 04:00 is EDT (UTC-4). Each bound must resolve its own offset, proving no
    // fixed-window assumption remains.
    const context = await browser.newContext({ timezoneId: "America/New_York" });
    const page = await context.newPage();
    await authenticate(page);
    let assignment: Record<string, unknown> | undefined;

    await page.route("**/api/Contact/GetLocations", (route) =>
      fulfillJson(route, { data: [{ Id: 10, Name: "St. Louis HQ" }] }),
    );
    await page.route("**/api/Employee/Dropdown", (route) => fulfillJson(route, { data: [] }));
    await page.route("**/api/DropdownOptions/ByCategory/**", (route) =>
      fulfillJson(route, { data: [] }),
    );
    await page.route("**/api/vendor-operations/availability*", (route) =>
      fulfillJson(route, {
        data: [
          {
            id: 7,
            companyName: "Gateway Plumbing",
            contactName: "Taylor Tech",
            availabilityStatus: "Available",
            isPreferred: true,
            conflicts: [],
          },
        ],
      }),
    );
    await page.route("**/api/WorkOrder/AddWorkorder", (route) =>
      fulfillJson(route, {
        data: {
          Id: 902,
          WorkerOrderTitle: "Boiler repair",
          LocationId: 10,
          Priority: "Sev 1",
          Status: "Open",
          Comments: [],
          AuditLog: [],
          Dispatches: [],
        },
      }),
    );
    await page.route("**/api/vendor-operations/work-orders/902/assignment", async (route) => {
      assignment = route.request().postDataJSON() as Record<string, unknown>;
      await fulfillJson(route, { availabilityStatus: "Available", conflicts: [] });
    });
    await page.route("**/api/WorkOrder/GetWorkorderById*", (route) =>
      fulfillJson(route, {
        data: {
          Id: 902,
          WorkerOrderTitle: "Boiler repair",
          LocationId: 10,
          Priority: "Sev 1",
          Status: "Open",
          Comments: [],
          AuditLog: [],
          Dispatches: [],
        },
      }),
    );

    await page.goto("/workorders/new");
    await page.getByLabel("Title").fill("Boiler repair");
    await page.getByLabel("Location").click();
    await page.getByRole("option", { name: "St. Louis HQ" }).click();
    await page.getByLabel("Priority").click();
    await page.getByRole("option", { name: "Sev 1" }).click();
    await page.getByLabel("Appointment start").fill("2026-03-08T01:00");
    await page.getByLabel("Appointment end").fill("2026-03-08T04:00");
    await page.getByLabel("Company + Technician").click();
    await page.getByRole("option", { name: /Gateway Plumbing · Taylor Tech/ }).click();
    await page.getByRole("button", { name: "Create" }).click();

    await expect.poll(() => assignment?.scheduledStart).toBe("2026-03-08T06:00:00.000Z");
    await expect.poll(() => assignment?.scheduledEnd).toBe("2026-03-08T08:00:00.000Z");
    await context.close();
  });

  test("focuses the Vendor & Time section when arriving from a no-vendor alert", async ({
    page,
  }) => {
    await authenticate(page);
    await page.route("**/api/Contact/GetLocations", (route) =>
      fulfillJson(route, { data: [{ Id: 10, Name: "St. Louis HQ" }] }),
    );
    await page.route("**/api/Employee/Dropdown", (route) => fulfillJson(route, { data: [] }));
    await page.route("**/api/DropdownOptions/ByCategory/**", (route) =>
      fulfillJson(route, { data: [] }),
    );
    await page.route("**/api/vendor-operations/availability*", (route) =>
      fulfillJson(route, {
        data: [
          {
            id: 7,
            companyName: "Gateway Plumbing",
            contactName: "Taylor Tech",
            availabilityStatus: "Available",
            isPreferred: true,
            conflicts: [],
          },
        ],
      }),
    );
    await page.route("**/api/WorkOrder/GetWorkorderById*", (route) =>
      fulfillJson(route, {
        data: {
          Id: 501,
          WorkerOrderTitle: "Boiler repair",
          LocationId: 10,
          Priority: "Sev 1",
          Status: "Open",
          Comments: [],
          AuditLog: [],
          Dispatches: [],
        },
      }),
    );

    await page.goto("/workorders/edit/501?assignVendor=1");

    const vendorSection = page.getByRole("region", { name: "Vendor & Time" });
    await expect(vendorSection).toBeVisible();
    await expect(vendorSection).toBeFocused();
    await page.getByLabel("Company + Technician").click();
    const option = page.getByRole("option", { name: /Gateway Plumbing · Taylor Tech/ });
    await expect(option).toContainText("Unknown");
  });
});