import { expect, test, type Page } from "@playwright/test";
import { mockWorkbenchContext } from "./support/mock-workbench-context";
import { TEST_PROJECT_ID } from "./support/mock-scada-api";

async function expectPushedOrder(page: Page, failFirstDetail = false) {
  await mockWorkbenchContext(page);
  const base = "https://tjwater-api.invalid/api/v1";
  const taskId = "72000000-0000-4000-8000-000000000041";
  const orderId = "73000000-0000-4000-8000-000000000041";
  const now = new Date().toISOString();
  const title = "主动推送工单：现场阀门复核";
  const runtime = {
    availability: "not_configured", source: "none",
    scenario_availability: "not_configured", artifact_availability: "not_configured",
    schedule_availability: "not_configured", work_order_availability: "not_configured",
    alert_availability: "not_configured", generated_at: now,
    conditions: [], alerts: [], scenarios: [], latest_analysis: null, work_orders: []
  };
  const task = {
    project_id: TEST_PROJECT_ID, task_id: taskId, task_type: "external_work_order",
    workflow: "external-work-order", lifecycle_status: "open", active_run: null,
    status: "queued", priority: "normal", revision: 2, execution_generation: 1,
    execution_request_id: "74000000-0000-4000-8000-000000000041", title,
    summary: "收到新工单后自动同步，无需手动刷新",
    source: { kind: "external_system", external_id: `peripheral_sample:${orderId}`, external_revision: 1, event_kind: "general" },
    trigger: { kind: "external_sync", occurred_at: now, detail: "来源工单事件" },
    scheduled_for: now, agent_session_id: null, agent_lease_expires_at: null,
    current_plan_revision: null, current_report_revision: null, created_at: now, updated_at: now,
    latest_plan: null, latest_report: null, evidence: [], actions: [],
    permissions: {
      can_publish_artifacts: false, can_propose_actions: false, can_sync_external_feedback: false,
      can_decide_work_orders: false, can_execute_work_orders: false,
      can_decide_commands: false, can_execute_commands: false
    },
    work_order_snapshot: {
      work_order_id: orderId, revision: 1, title, summary: "现场阀门复核", status: "open",
      priority: "normal", assignee: "现场班组", scheduled_at: now, work_order_type: "general",
      location: "测试阀门", scenario_code: null, feedback_requirements: [], activity: [],
      origin: "synthetic", updated_at: now
    }
  };
  let snapshotRequests = 0;
  let detailRequests = 0;
  let releaseProjection!: () => void;
  const projectionReady = new Promise<void>((resolve) => { releaseProjection = resolve; });
  const headers = { "Access-Control-Allow-Origin": "*", "Access-Control-Allow-Headers": "*" };
  await page.route(`${base}/workbench/sync-snapshot`, (route) => {
    snapshotRequests += 1;
    return route.fulfill({ headers, json: {
      schema: "workbench-sync-snapshot@1", event_cursor: 0, runtime,
      tasks: [], notifications: [], generated_at: now
    } });
  });
  await page.route(`${base}/operational-tasks/${taskId}`, (route) => {
    detailRequests += 1;
    if (failFirstDetail && detailRequests === 1) return route.fulfill({ headers, status: 503, json: { detail: "temporary" } });
    return route.fulfill({ headers, json: task });
  });
  await page.route(`${base}/workbench/events**`, async (route) => {
    const after = new URL(route.request().url()).searchParams.get("after");
    if (after !== "0" && after !== "1") {
      return route.fulfill({ headers, contentType: "text/event-stream", body: ": keepalive\n\n" });
    }
    if (after === "1") await projectionReady;
    const sequence = after === "0" ? 1 : 2;
    const event = {
      schema: "workbench-event@1", event_seq: sequence,
      event_id: `75000000-0000-4000-8000-00000000000${sequence}`, project_id: TEST_PROJECT_ID,
      topic: sequence === 1 ? "workbench.work_order.changed" : "operational.task.changed",
      aggregate_type: sequence === 1 ? "peripheral_work_order" : "operational_task",
      aggregate_id: sequence === 1 ? orderId : taskId, aggregate_revision: sequence,
      occurred_at: now,
      metadata: sequence === 1 ? { source: "peripheral_sample", work_order_id: orderId } : { task_id: taskId }
    };
    const projection = { ...event, event_seq: 3,
      topic: "workbench.work_order.changed", aggregate_type: "operational_task",
      event_id: "75000000-0000-4000-8000-000000000003" };
    const body = `id: ${sequence}\nevent: workbench_event\ndata: ${JSON.stringify(event)}\n\n`
      + (sequence === 2 ? `id: 3\nevent: workbench_event\ndata: ${JSON.stringify(projection)}\n\n` : "");
    return route.fulfill({ headers, contentType: "text/event-stream", body });
  });
  const waitingForProjection = page.waitForRequest((request) =>
    request.url().includes("/workbench/events?after=1")
  );
  await page.goto("/", { waitUntil: "domcontentloaded" });
  await page.getByRole("button", { name: "工况任务", exact: true }).click();
  const panel = page.getByRole("region", { name: "工况任务", exact: true });
  await panel.getByRole("button", { name: "展开工况任务" }).click();
  await panel.getByRole("button", { name: /^预约任务/ }).click();
  await waitingForProjection;
  expect(snapshotRequests).toBe(1);
  await expect(panel).not.toContainText(title);
  const caughtUp = page.waitForRequest((request) => request.url().includes("/workbench/events?after=3"));
  releaseProjection();
  await expect(panel).toContainText(title);
  await caughtUp;
  expect(detailRequests).toBe(failFirstDetail ? 2 : 1);
  expect(snapshotRequests).toBe(1);
}

test("源工单推送等待投影完成后自动进入预约任务，无需刷新快照", async ({ page }) => {
  await expectPushedOrder(page);
});

test("事件详情短暂失败后定向重试，无需新的业务事件或全量快照", async ({ page }) => {
  await expectPushedOrder(page, true);
});

test("事件日志清空后的合法游标重置会从零重连，不循环请求快照", async ({ page }) => {
  await mockWorkbenchContext(page);
  const base = "https://tjwater-api.invalid/api/v1";
  const now = new Date().toISOString();
  const runtime = {
    availability: "not_configured", source: "none", scenario_availability: "not_configured",
    artifact_availability: "not_configured", schedule_availability: "not_configured",
    work_order_availability: "not_configured", alert_availability: "not_configured",
    generated_at: now, conditions: [], alerts: [], scenarios: [], latest_analysis: null, work_orders: []
  };
  let snapshots = 0;
  const cursors: string[] = [];
  const headers = { "Access-Control-Allow-Origin": "*", "Access-Control-Allow-Headers": "*" };
  await page.route(`${base}/workbench/sync-snapshot`, (route) => {
    snapshots += 1;
    return route.fulfill({ headers, json: {
      schema: "workbench-sync-snapshot@1", event_cursor: snapshots === 1 ? 41 : 0,
      runtime, tasks: [], notifications: [], generated_at: now
    } });
  });
  await page.route(`${base}/workbench/events**`, (route) => {
    const cursor = new URL(route.request().url()).searchParams.get("after")!;
    cursors.push(cursor);
    return route.fulfill({ headers, contentType: "text/event-stream",
      body: cursor === "41" ? "event: reset_required\ndata: {}\n\n" : ": keepalive\n\n" });
  });
  await page.goto("/", { waitUntil: "domcontentloaded" });
  await expect.poll(() => cursors.includes("0")).toBe(true);
  expect(cursors.slice(0, 2)).toEqual(["41", "0"]);
  expect(snapshots).toBe(2);
  await expect(page.getByRole("button", { name: "工况任务", exact: true })).toBeVisible();
});

test("运行态事件的快照请求短暂失败后重试，不等待其他事件", async ({ page }) => {
  await mockWorkbenchContext(page);
  const base = "https://tjwater-api.invalid/api/v1";
  const now = new Date().toISOString();
  const runtime = {
    availability: "not_configured", source: "none", scenario_availability: "not_configured",
    artifact_availability: "not_configured", schedule_availability: "not_configured",
    work_order_availability: "not_configured", alert_availability: "not_configured",
    generated_at: now, conditions: [], alerts: [], scenarios: [], latest_analysis: null, work_orders: []
  };
  let snapshots = 0;
  const headers = { "Access-Control-Allow-Origin": "*", "Access-Control-Allow-Headers": "*" };
  await page.route(`${base}/workbench/sync-snapshot`, (route) => {
    snapshots += 1;
    if (snapshots === 2) return route.fulfill({ headers, status: 503, json: { detail: "temporary" } });
    return route.fulfill({ headers, json: {
      schema: "workbench-sync-snapshot@1", event_cursor: snapshots === 1 ? 41 : 42,
      runtime, tasks: [], notifications: [], generated_at: now
    } });
  });
  await page.route(`${base}/workbench/events**`, (route) => {
    const event = { schema: "workbench-event@1", event_seq: 42,
      event_id: "75000000-0000-4000-8000-000000000042", project_id: TEST_PROJECT_ID,
      topic: "analysis.run.changed", aggregate_type: "analysis_run", aggregate_id: "run-1",
      aggregate_revision: 1, occurred_at: now, metadata: {} };
    return route.fulfill({ headers, contentType: "text/event-stream", body:
      new URL(route.request().url()).searchParams.get("after") === "41"
        ? `id: 42\nevent: workbench_event\ndata: ${JSON.stringify(event)}\n\n` : ": keepalive\n\n" });
  });
  await page.goto("/", { waitUntil: "domcontentloaded" });
  await expect.poll(() => snapshots).toBe(3);
});