import { afterAll, beforeAll, describe, expect, test } from "bun:test";
import { and, db, eq, inArray } from "@openstatus/db";
import {
  maintenance,
  maintenancesToMonitors,
  maintenancesToPageComponents,
  monitor,
  monitorGroup,
  monitorsToPages,
  monitorsToStatusReport,
  page,
  pageComponent,
  pageComponentGroup,
  statusReport,
  statusReportUpdate,
  statusReportsToPageComponents,
} from "@openstatus/db/src/schema";
import { flyRegions } from "@openstatus/db/src/schema/constants";
import { syncMonitorsToPageInsert } from "@openstatus/db/src/sync";

import { appRouter } from "../root";
import { createInnerTRPCContext } from "../trpc";

/**
 * Sync Tests: Verify that mutations to legacy tables also sync to new page_component tables
 *
 * Table mappings:
 * - monitor_group -> page_component_groups
 * - monitors_to_pages -> page_component
 * - status_report_to_monitors -> status_report_to_page_component
 * - maintenance_to_monitor -> maintenance_to_page_component
 */

function getTestContext(limits?: unknown) {
  return createInnerTRPCContext({
    req: undefined,
    session: {
      user: {
        id: "1",
      },
    },
    workspace: {
      id: 1,
      // @ts-expect-error - test context with partial limits
      limits: limits || {
        monitors: 100,
        periodicity: ["30s", "1m", "5m", "10m", "30m", "1h"],
        regions: flyRegions,
        "status-pages": 10,
        maintenance: true,
        notifications: 10,
        "status-subscribers": true,
        sms: false,
        pagerduty: true,
        "password-protection": true,
        "email-domain-protection": true,
        "custom-domain": true,
      },
    },
  });
}

// Test data identifiers
const TEST_PREFIX = "sync-test";
let testPageId: number;
let testMonitorId: number;
let testPageComponentId: number;

const monitorData = {
  name: `${TEST_PREFIX}-monitor`,
  url: "https://sync-test.example.com",
  jobType: "http" as const,
  method: "GET" as const,
  periodicity: "1m" as const,
  regions: [flyRegions[0]],
  statusAssertions: [],
  headerAssertions: [],
  textBodyAssertions: [],
  notifications: [],
  pages: [] as number[],
  tags: [],
};

beforeAll(async () => {
  // Clean up any existing test data
  await db
    .delete(pageComponent)
    .where(eq(pageComponent.name, `${TEST_PREFIX}-monitor`));
  await db.delete(page).where(eq(page.slug, `${TEST_PREFIX}-page`));
  await db.delete(monitor).where(eq(monitor.name, `${TEST_PREFIX}-monitor`));
  await db
    .delete(monitor)
    .where(eq(monitor.name, `${TEST_PREFIX}-deletable-monitor`));

  // Create test page first
  const testPage = await db
    .insert(page)
    .values({
      workspaceId: 1,
      title: "Sync Test Page",
      description: "A test page for sync tests",
      slug: `${TEST_PREFIX}-page`,
      customDomain: "",
    })
    .returning()
    .get();
  testPageId = testPage.id;

  // Create test monitor using tRPC (must be active for sync to work)
  const ctx = getTestContext();
  const caller = appRouter.createCaller(ctx);
  const createdMonitor = await caller.monitor.new({
    name: monitorData.name,
    url: monitorData.url,
    jobType: monitorData.jobType,
    method: monitorData.method,
    headers: [],
    assertions: [],
    active: true, // Changed to true - sync functions only sync active monitors
    skipCheck: true,
  });
  testMonitorId = createdMonitor.id;

  const createdPageComponent = await db
    .insert(pageComponent)
    .values({
      workspaceId: 1,
      pageId: testPageId,
      monitorId: testMonitorId,
      type: "monitor",
      name: `${TEST_PREFIX}-monitor`,
    })
    .returning()
    .get();
  testPageComponentId = createdPageComponent.id;
});

afterAll(async () => {
  // Clean up test data in correct order (dependencies first)
  await db
    .delete(maintenancesToPageComponents)
    .where(
      inArray(
        maintenancesToPageComponents.pageComponentId,
        db
          .select({ id: pageComponent.id })
          .from(pageComponent)
          .where(eq(pageComponent.pageId, testPageId)),
      ),
    );
  await db
    .delete(statusReportsToPageComponents)
    .where(
      inArray(
        statusReportsToPageComponents.pageComponentId,
        db
          .select({ id: pageComponent.id })
          .from(pageComponent)
          .where(eq(pageComponent.pageId, testPageId)),
      ),
    );
  await db.delete(pageComponent).where(eq(pageComponent.pageId, testPageId));
  await db
    .delete(pageComponentGroup)
    .where(eq(pageComponentGroup.pageId, testPageId));
  await db.delete(monitorGroup).where(eq(monitorGroup.pageId, testPageId));
  await db
    .delete(monitorsToPages)
    .where(eq(monitorsToPages.pageId, testPageId));
  await db
    .delete(maintenancesToMonitors)
    .where(eq(maintenancesToMonitors.monitorId, testMonitorId));
  await db
    .delete(monitorsToStatusReport)
    .where(eq(monitorsToStatusReport.monitorId, testMonitorId));
  await db
    .delete(statusReportUpdate)
    .where(
      inArray(
        statusReportUpdate.statusReportId,
        db
          .select({ id: statusReport.id })
          .from(statusReport)
          .where(eq(statusReport.pageId, testPageId)),
      ),
    );
  await db.delete(statusReport).where(eq(statusReport.pageId, testPageId));
  await db.delete(maintenance).where(eq(maintenance.pageId, testPageId));
  await db.delete(page).where(eq(page.slug, `${TEST_PREFIX}-page`));
  await db.delete(monitor).where(eq(monitor.name, `${TEST_PREFIX}-monitor`));
  await db
    .delete(monitor)
    .where(eq(monitor.name, `${TEST_PREFIX}-deletable-monitor`));
});

describe("Sync: monitors_to_pages -> page_component", () => {});

describe("Sync: maintenance_to_monitor -> maintenance_to_page_component", () => {
  let testMaintenanceId: number;

  beforeAll(async () => {
    // Ensure monitor is on the page first - use manual db call
    await db
      .insert(monitorsToPages)
      .values({
        monitorId: testMonitorId,
        pageId: testPageId,
        order: 0,
      })
      .onConflictDoNothing();

    // Sync to page_component
    await syncMonitorsToPageInsert(db, {
      monitorId: testMonitorId,
      pageId: testPageId,
      order: 0,
    });
  });

  afterAll(async () => {
    if (testMaintenanceId) {
      await db
        .delete(maintenancesToPageComponents)
        .where(
          eq(maintenancesToPageComponents.maintenanceId, testMaintenanceId),
        );
      await db
        .delete(maintenancesToMonitors)
        .where(eq(maintenancesToMonitors.maintenanceId, testMaintenanceId));
      await db.delete(maintenance).where(eq(maintenance.id, testMaintenanceId));
    }
  });

  test("Creating maintenance with monitors syncs to maintenance_to_page_component", async () => {
    const ctx = getTestContext();
    const caller = appRouter.createCaller(ctx);

    const from = new Date();
    const to = new Date(from.getTime() + 1000 * 60 * 60);

    const createdMaintenance = await caller.maintenance.new({
      title: `${TEST_PREFIX} Maintenance`,
      message: "Test maintenance for sync",
      startDate: from,
      endDate: to,
      pageId: testPageId,
      pageComponents: [testPageComponentId],
    });
    testMaintenanceId = createdMaintenance.id;

    // Verify maintenance_to_monitor was created
    const maintenanceToMonitor =
      await db.query.maintenancesToMonitors.findFirst({
        where: and(
          eq(maintenancesToMonitors.maintenanceId, testMaintenanceId),
          eq(maintenancesToMonitors.monitorId, testMonitorId),
        ),
      });
    expect(maintenanceToMonitor).toBeDefined();

    // Verify maintenance_to_page_component was synced
    const component = await db.query.pageComponent.findFirst({
      where: and(
        eq(pageComponent.monitorId, testMonitorId),
        eq(pageComponent.pageId, testPageId),
      ),
    });

    if (component) {
      const maintenanceToComponent =
        await db.query.maintenancesToPageComponents.findFirst({
          where: and(
            eq(maintenancesToPageComponents.maintenanceId, testMaintenanceId),
            eq(maintenancesToPageComponents.pageComponentId, component.id),
          ),
        });
      expect(maintenanceToComponent).toBeDefined();
    }
  });

  test("Updating maintenance monitors syncs to maintenance_to_page_component", async () => {
    const ctx = getTestContext();
    const caller = appRouter.createCaller(ctx);

    // Skip if no maintenance was created
    if (!testMaintenanceId) return;

    const from = new Date();
    const to = new Date(from.getTime() + 1000 * 60 * 60);

    // Update maintenance to remove monitors
    await caller.maintenance.update({
      id: testMaintenanceId,
      title: `${TEST_PREFIX} Maintenance`,
      message: "Updated maintenance",
      startDate: from,
      endDate: to,
      pageComponents: [],
    });

    // Verify maintenance_to_monitor was deleted
    const maintenanceToMonitor =
      await db.query.maintenancesToMonitors.findFirst({
        where: and(
          eq(maintenancesToMonitors.maintenanceId, testMaintenanceId),
          eq(maintenancesToMonitors.monitorId, testMonitorId),
        ),
      });
    expect(maintenanceToMonitor).toBeUndefined();

    // Verify maintenance_to_page_component was also deleted
    const maintenanceToComponent =
      await db.query.maintenancesToPageComponents.findFirst({
        where: eq(
          maintenancesToPageComponents.maintenanceId,
          testMaintenanceId,
        ),
      });
    expect(maintenanceToComponent).toBeUndefined();
  });
});

describe("Sync: status_report_to_monitors -> status_report_to_page_component", () => {
  let testStatusReportId: number;

  beforeAll(async () => {
    const ctx = getTestContext();
    const _caller = appRouter.createCaller(ctx);

    // Ensure monitor is on the page first
    await db
      .insert(monitorsToPages)
      .values({
        monitorId: testMonitorId,
        pageId: testPageId,
        order: 0,
      })
      .onConflictDoNothing();

    // Sync to page_component
    await syncMonitorsToPageInsert(db, {
      monitorId: testMonitorId,
      pageId: testPageId,
      order: 0,
    });
  });

  afterAll(async () => {
    if (testStatusReportId) {
      await db
        .delete(statusReportsToPageComponents)
        .where(
          eq(statusReportsToPageComponents.statusReportId, testStatusReportId),
        );
      await db
        .delete(monitorsToStatusReport)
        .where(eq(monitorsToStatusReport.statusReportId, testStatusReportId));
      await db
        .delete(statusReportUpdate)
        .where(eq(statusReportUpdate.statusReportId, testStatusReportId));
      await db
        .delete(statusReport)
        .where(eq(statusReport.id, testStatusReportId));
    }
  });

  test("Creating status report with monitors syncs to status_report_to_page_component", async () => {
    const ctx = getTestContext();
    const caller = appRouter.createCaller(ctx);

    const createdReport = await caller.statusReport.create({
      title: `${TEST_PREFIX} Status Report`,
      status: "investigating",
      message: "Test status report for sync",
      pageId: testPageId,
      pageComponents: [testPageComponentId],
      date: new Date(),
    });
    testStatusReportId = createdReport.statusReportId;

    // Verify status_report_to_monitors was created
    const reportToMonitor = await db.query.monitorsToStatusReport.findFirst({
      where: and(
        eq(monitorsToStatusReport.statusReportId, testStatusReportId),
        eq(monitorsToStatusReport.monitorId, testMonitorId),
      ),
    });
    expect(reportToMonitor).toBeDefined();

    // Verify status_report_to_page_component was synced
    const component = await db.query.pageComponent.findFirst({
      where: and(
        eq(pageComponent.monitorId, testMonitorId),
        eq(pageComponent.pageId, testPageId),
      ),
    });

    if (component) {
      const reportToComponent =
        await db.query.statusReportsToPageComponents.findFirst({
          where: and(
            eq(
              statusReportsToPageComponents.statusReportId,
              testStatusReportId,
            ),
            eq(statusReportsToPageComponents.pageComponentId, component.id),
          ),
        });
      expect(reportToComponent).toBeDefined();
    }
  });

  test("Updating status report monitors syncs to status_report_to_page_component", async () => {
    const ctx = getTestContext();
    const caller = appRouter.createCaller(ctx);

    // Skip if no status report was created
    if (!testStatusReportId) return;

    // Update status to remove monitors (using updateStatus procedure)
    await caller.statusReport.updateStatus({
      id: testStatusReportId,
      status: "resolved",
      pageComponents: [],
      title: `${TEST_PREFIX} Status Report`,
    });

    // Verify status_report_to_monitors was deleted
    const reportToMonitor = await db.query.monitorsToStatusReport.findFirst({
      where: and(
        eq(monitorsToStatusReport.statusReportId, testStatusReportId),
        eq(monitorsToStatusReport.monitorId, testMonitorId),
      ),
    });
    expect(reportToMonitor).toBeUndefined();

    // Verify status_report_to_page_component was also deleted
    const reportToComponent =
      await db.query.statusReportsToPageComponents.findFirst({
        where: eq(
          statusReportsToPageComponents.statusReportId,
          testStatusReportId,
        ),
      });
    expect(reportToComponent).toBeUndefined();
  });
});

describe("Sync: monitor deletion cascades to page_component tables", () => {
  let deletableMonitorId: number;

  beforeAll(async () => {
    const ctx = getTestContext();
    const caller = appRouter.createCaller(ctx);

    // Create a monitor specifically for deletion tests (must be active for sync)
    const deletableMonitor = await caller.monitor.new({
      name: `${TEST_PREFIX}-deletable-monitor`,
      url: "https://delete-test.example.com",
      jobType: "http" as const,
      method: "GET" as const,
      headers: [],
      assertions: [],
      active: true, // Changed to true - sync functions only sync active monitors
      skipCheck: true,
    });
    deletableMonitorId = deletableMonitor.id;

    // Add monitor to page
    await db
      .insert(monitorsToPages)
      .values({
        monitorId: deletableMonitorId,
        pageId: testPageId,
        order: 0,
      })
      .onConflictDoNothing();

    // Sync to page_component
    await syncMonitorsToPageInsert(db, {
      monitorId: deletableMonitorId,
      pageId: testPageId,
      order: 0,
    });
  });

  test("Deleting monitor removes related page_component entries", async () => {
    const ctx = getTestContext();
    const caller = appRouter.createCaller(ctx);

    // Verify page_component exists before deletion
    let component = await db.query.pageComponent.findFirst({
      where: eq(pageComponent.monitorId, deletableMonitorId),
    });
    expect(component).toBeDefined();

    // Delete the monitor
    await caller.monitor.delete({ id: deletableMonitorId });

    // Verify page_component was removed
    component = await db.query.pageComponent.findFirst({
      where: eq(pageComponent.monitorId, deletableMonitorId),
    });
    expect(component).toBeUndefined();
  });
});