import { expect, test, type Page, type Response } from "@playwright/test";
import {
  FILLED_REVIEW_SESSION_ID,
  filledReviewResponse,
  routeFilledSessionReview,
  routePrepostMeasures,
} from "./session-review-fixture";
import {
  expectNoHorizontalOverflow,
  fetchAvailablePersona,
  signInAsLearner,
} from "./support";

interface SessionStartResponse {
  session_id: string;
}

async function expectResponseOk(response: { ok: () => boolean; text: () => Promise<string> }) {
  if (!response.ok()) {
    expect(response.ok(), await response.text()).toBeTruthy();
  }
}

async function routeSupervisorCapableLearner(page: Page) {
  await page.route("**/api/auth/me", async (route) => {
    await route.fulfill({
      status: 200,
      contentType: "application/json",
      body: JSON.stringify({
        user_id: "00000000-0000-0000-0000-000000000303",
        email: "yunchan@twentyoz.kr",
        role: "learner",
        display_name: "Yun Chan",
        admin_access: true,
        super_admin: true,
        account_status: "approved",
        approval_required: false,
        cohort_ids: [],
        consent_at: 1782820000,
        onboarding_completed_at: 1782820001,
        nickname: "Yun Chan",
        self_introduction: "",
        avatar_url: "",
      }),
    });
  });
}

function isReviewResponse(sessionId: string) {
  return (response: Response) => {
    const url = new URL(response.url());
    return (
      response.request().method() === "GET" &&
      url.pathname.endsWith(`/sessions/${sessionId}/review`)
    );
  };
}

async function createEndedSession(page: Page) {
  const persona = await fetchAvailablePersona(page, 1);
  const start = await page.request.post("/api/sessions", {
    data: {
      persona_code: persona.code,
      theory_mode: "humanistic",
    },
  });
  await expectResponseOk(start);

  const session = (await start.json()) as SessionStartResponse;
  const ended = await page.request.post(`/api/sessions/${session.session_id}/end`);
  await expectResponseOk(ended);
  return session.session_id;
}

async function expectReviewRegionsReachable(page: Page) {
  await expect(page.locator(".sr-overview")).toBeVisible();
  await expect(page.locator(".sr-feedback")).toBeVisible();
  await expect(page.locator(".sr-card--chart")).toBeVisible();
  await expect(page.locator(".sr-card--flow")).toBeVisible();
  await expect(page.locator(".sr-card--rubric")).toBeVisible();
  await expect(page.locator(".sr-card--transcript")).toBeVisible();
  await expect(page.locator(".sr-card--prepost")).toBeVisible();

  const grid = await page.locator(".sr-cols").evaluate((el) => {
    const style = window.getComputedStyle(el);
    return {
      display: style.display,
      areas: style.gridTemplateAreas,
    };
  });
  expect(grid.display).toBe("grid");
  expect(grid.areas).toContain("overview");
  expect(grid.areas).toContain("feedback");
  expect(grid.areas).toContain("transcript");
  expect(grid.areas).not.toContain("teacher");

  await expect(page.locator(".sr-overview")).toBeInViewport();
  await page.locator(".sr-card--transcript").scrollIntoViewIfNeeded();
  await expect(page.locator(".sr-card--transcript")).toBeInViewport();

  const railGeometry = await page.locator(".sr-cols").evaluate((gridEl) => {
    const root = gridEl.closest(".sr-root");
    const overview = gridEl.querySelector(".sr-overview")?.getBoundingClientRect();
    const transcript = gridEl.querySelector(".sr-card--transcript")?.getBoundingClientRect();
    const rubric = gridEl.querySelector(".sr-card--rubric")?.getBoundingClientRect();
    const prepost = gridEl.querySelector(".sr-card--prepost")?.getBoundingClientRect();
    const worksheet = gridEl.querySelector(".sr-card--worksheet")?.getBoundingClientRect();
    const columns = window
      .getComputedStyle(gridEl)
      .gridTemplateColumns.split(" ")
      .filter(Boolean).length;
    return {
      isEmpty: root?.classList.contains("sr-root--empty") ?? false,
      columns,
      overviewLeft: overview ? Math.floor(overview.left) : 0,
      overviewRight: overview ? Math.ceil(overview.right) : 0,
      transcriptLeft: transcript ? Math.floor(transcript.left) : 0,
      transcriptRight: transcript ? Math.ceil(transcript.right) : 0,
      rubricLeft: rubric ? Math.floor(rubric.left) : 0,
      prepostLeft: prepost ? Math.floor(prepost.left) : 0,
      worksheetLeft: worksheet ? Math.floor(worksheet.left) : 0,
    };
  });
  if (!railGeometry.isEmpty && railGeometry.columns === 2) {
    expect(railGeometry.transcriptRight).toBeLessThanOrEqual(railGeometry.overviewLeft);
    expect(railGeometry.rubricLeft).toBeGreaterThanOrEqual(railGeometry.overviewLeft);
    expect(railGeometry.prepostLeft).toBeGreaterThanOrEqual(railGeometry.overviewLeft);
    expect(railGeometry.worksheetLeft).toBeGreaterThanOrEqual(railGeometry.overviewLeft);
  } else if (railGeometry.columns >= 3) {
    expect(railGeometry.overviewRight).toBeLessThanOrEqual(railGeometry.transcriptLeft);
  }
}

test.describe("session review", () => {
  test("redirects supervisor-capable users from learner 403 into the teacher review route", async ({
    page,
  }) => {
    await routeSupervisorCapableLearner(page);
    await routePrepostMeasures(page);

    const sessionId = "supervisor-redirect-review";
    let reviewAttempts = 0;
    await page.route(`**/api/sessions/${sessionId}/review`, async (route) => {
      reviewAttempts += 1;
      const referer = route.request().headers().referer ?? page.url();
      if (!referer.includes(`/teach/session/${sessionId}/review`)) {
        await route.fulfill({
          status: 403,
          contentType: "application/json",
          body: JSON.stringify({ detail: "session does not belong to user" }),
        });
        return;
      }
      await route.fulfill({
        status: 200,
        contentType: "application/json",
        body: JSON.stringify(filledReviewResponse(sessionId)),
      });
    });

    await page.goto(`/learn/session/${sessionId}/review`);

    await expect(page).toHaveURL(new RegExp(`/teach/session/${sessionId}/review$`));
    await expect(page.getByText("교수자 검토", { exact: true })).toBeVisible();
    expect(reviewAttempts).toBeGreaterThanOrEqual(2);
  });

  test("normalizes a successful supervisor review response away from the learner route", async ({
    page,
  }) => {
    await routeSupervisorCapableLearner(page);

    const sessionId = "supervisor-success-review";
    let reviewAttempts = 0;
    await page.route(`**/api/sessions/${sessionId}/review`, async (route) => {
      reviewAttempts += 1;
      await route.fulfill({
        status: 200,
        contentType: "application/json",
        body: JSON.stringify({
          ...filledReviewResponse(sessionId),
          teacherReview: {
            status: "pending",
            note: "",
            reviewedAt: null,
            reviewerId: null,
            updatedAt: null,
            worksheetStatus: "pending",
            worksheetNote: "",
            worksheetReviewedAt: null,
          },
        }),
      });
    });

    await page.goto(`/learn/session/${sessionId}/review`);

    await expect(page).toHaveURL(new RegExp(`/teach/session/${sessionId}/review$`));
    await expect(page.getByText("교수자 검토", { exact: true })).toBeVisible();
    await expect(page.locator(".sr-card--prepost")).toHaveCount(0);
    expect(reviewAttempts).toBeGreaterThanOrEqual(2);
  });

  test("refreshes an ended review from evaluation pending to ready", async ({ page }) => {
    await routeSupervisorCapableLearner(page);
    await routePrepostMeasures(page);

    const sessionId = "review-pending-then-ready";
    let reviewAttempts = 0;
    let firstResponseWasPending = false;
    await page.route(`**/api/sessions/${sessionId}/review`, async (route) => {
      reviewAttempts += 1;
      const ready = {
        ...filledReviewResponse(sessionId),
        summary: "평가 AI가 저장된 축어록을 분석했습니다.",
      };
      const pending = {
        ...ready,
        supervisorState: "평가 대기",
        summary: "평가 AI가 저장된 축어록을 분석 중입니다.",
        rubric: [],
        goodMoments: [],
        growthPoints: [],
        degraded: true,
        reviewReady: false,
      };
      if (reviewAttempts === 1) firstResponseWasPending = true;
      await route.fulfill({
        status: 200,
        contentType: "application/json",
        body: JSON.stringify(reviewAttempts === 1 ? pending : ready),
      });
    });

    await page.goto(`/learn/session/${sessionId}/review`);

    await expect(page.getByText("평가 AI가 저장된 축어록을 분석했습니다.")).toBeVisible({
      timeout: 5000,
    });
    await expect(page.getByText("평가 완료")).toBeVisible();
    expect(firstResponseWasPending).toBe(true);
    expect(reviewAttempts).toBeGreaterThanOrEqual(2);
  });

  test("lets supervisor retry a failed AI session evaluation", async ({ page }) => {
    await routeSupervisorCapableLearner(page);
    await routePrepostMeasures(page);

    const sessionId = "review-failed-retry";
    let reevaluateRequests = 0;
    let retrySucceeded = false;
    await page.route(`**/api/sessions/${sessionId}/review`, async (route) => {
      const ready = filledReviewResponse(sessionId);
      const failed = {
        ...ready,
        supervisorState: "평가 실패",
        summary:
          "저장된 축어록은 확인했지만 평가 AI 산출물이 아직 준비되지 않았습니다. 사유: engine_error: evaluator timeout",
        rubric: [],
        goodMoments: [],
        growthPoints: [],
        degraded: true,
        reviewReady: false,
        teacherReview: {
          status: "pending",
          note: "",
          reviewedAt: null,
          reviewerId: null,
          updatedAt: null,
          worksheetStatus: "pending",
          worksheetNote: "",
          worksheetReviewedAt: null,
        },
      };
      await route.fulfill({
        status: 200,
        contentType: "application/json",
        body: JSON.stringify(retrySucceeded ? ready : failed),
      });
    });
    await page.route(`**/api/eval/sessions/${sessionId}/reevaluate`, async (route) => {
      reevaluateRequests += 1;
      retrySucceeded = true;
      await route.fulfill({
        status: 200,
        contentType: "application/json",
        body: JSON.stringify({
          loop: "deep",
          session_id: sessionId,
          stage: "정리",
          scope: "session_end",
          turns_evaluated: 2,
          distribution: {},
          theory_mode: "humanistic",
          strengths: [],
          improvements: [],
          intent_deviations: [],
          error: null,
        }),
      });
    });

    await page.goto(`/teach/session/${sessionId}/review`);
    await expect(page.getByText("평가 실패")).toBeVisible();
    await expect(page.getByRole("button", { name: "AI 평가 재시도" })).toBeVisible();

    await page.getByRole("button", { name: "AI 평가 재시도" }).click();

    await expect(page.getByText("평가 완료")).toBeVisible();
    await expect(page.getByText("평가 실패")).toHaveCount(0);
    expect(reevaluateRequests).toBe(1);
  });

  test("keeps the failed review visible when AI evaluation retry fails", async ({ page }) => {
    await routeSupervisorCapableLearner(page);
    await routePrepostMeasures(page);

    const sessionId = "review-failed-retry-error";
    let reviewRequests = 0;
    let reevaluateRequests = 0;
    await page.route(`**/api/sessions/${sessionId}/review`, async (route) => {
      reviewRequests += 1;
      const ready = filledReviewResponse(sessionId);
      await route.fulfill({
        status: 200,
        contentType: "application/json",
        body: JSON.stringify({
          ...ready,
          supervisorState: "평가 실패",
          summary:
            "저장된 축어록은 확인했지만 평가 AI 산출물이 아직 준비되지 않았습니다. 사유: session evaluation timeout after 45s",
          rubric: [],
          goodMoments: [],
          growthPoints: [],
          degraded: true,
          reviewReady: false,
          teacherReview: {
            status: "pending",
            note: "",
            reviewedAt: null,
            reviewerId: null,
            updatedAt: null,
            worksheetStatus: "pending",
            worksheetNote: "",
            worksheetReviewedAt: null,
          },
        }),
      });
    });
    await page.route(`**/api/eval/sessions/${sessionId}/reevaluate`, async (route) => {
      reevaluateRequests += 1;
      await route.fulfill({
        status: 503,
        contentType: "application/json",
        body: JSON.stringify({ detail: "engine_error: retry timeout" }),
      });
    });

    await page.goto(`/teach/session/${sessionId}/review`);
    await expect(page.getByText("평가 실패")).toBeVisible();
    const reviewRequestsBeforeRetry = reviewRequests;

    await page.getByRole("button", { name: "AI 평가 재시도" }).click();

    await expect(page.getByText("engine_error: retry timeout")).toBeVisible();
    await expect(page.getByText("평가 실패")).toBeVisible();
    await expect(page.getByRole("button", { name: "AI 평가 재시도" })).toBeEnabled();
    expect(reevaluateRequests).toBe(1);
    expect(reviewRequests).toBe(reviewRequestsBeforeRetry);
  });

  test("renders server review data without legacy transcript fixtures", async ({ page }) => {
    await signInAsLearner(page);
    await routePrepostMeasures(page);
    const sessionId = await createEndedSession(page);

    const reviewResponsePromise = page.waitForResponse(isReviewResponse(sessionId));
    await page.goto(`/learn/session/${sessionId}/review`);
    const reviewResponse = await reviewResponsePromise;
    await expectResponseOk(reviewResponse);

    const review = await reviewResponse.json();
    expect(review.session_id).toBe(sessionId);
    expect(review.reviewReady).toBe(false);
    expect(review.turns).toHaveLength(0);

    await expect(page).toHaveURL(new RegExp(`/learn/session/${sessionId}/review$`));
    await expect(page.getByText("축어록 없음")).toBeVisible();
    await expect(page.getByText("감정 타임라인 대기")).toBeVisible();
    await expect(page.getByText("개선점 대기")).toBeVisible();
    await expect(page.getByRole("button", { name: "오디오 다시 듣기" })).toBeDisabled();
    await expect(page.getByRole("button", { name: "PDF 내보내기" })).toBeDisabled();
    await expect(page.getByText("32분 14초")).toHaveCount(0);
    await expect(page.getByText("시연")).toHaveCount(0);
    await expectReviewRegionsReachable(page);
    const filterMetrics = await page.locator(".sr-chip-toggle").evaluateAll((buttons) =>
      buttons.map((button) => {
        const rect = button.getBoundingClientRect();
        const style = window.getComputedStyle(button);
        return {
          height: Math.ceil(rect.height),
          whiteSpace: style.whiteSpace,
        };
      }),
    );
    expect(filterMetrics.every((item) => item.height <= 34 && item.whiteSpace === "nowrap")).toBe(
      true,
    );
    await expectNoHorizontalOverflow(page);
  });

  test("renders filled review evidence state without clipping", async ({ page }) => {
    await signInAsLearner(page);
    await routeFilledSessionReview(page);
    await routePrepostMeasures(page);

    const reviewResponsePromise = page.waitForResponse(isReviewResponse(FILLED_REVIEW_SESSION_ID));
    await page.goto(`/learn/session/${FILLED_REVIEW_SESSION_ID}/review`);
    const reviewResponse = await reviewResponsePromise;
    await expectResponseOk(reviewResponse);

    const review = await reviewResponse.json();
    expect(review.session_id).toBe(FILLED_REVIEW_SESSION_ID);
    expect(review.reviewReady).toBe(true);
    expect(review.turns).toHaveLength(6);

    await expect(page).toHaveURL(new RegExp(`/learn/session/${FILLED_REVIEW_SESSION_ID}/review$`));
    await expect(page.getByText("관계 신호가 안정적으로 회복된 회기")).toBeVisible();
    await expect(page.getByText("감정 밸런스 타임라인")).toBeVisible();
    await expect(page.getByText("회기 흐름")).toBeVisible();
    await expect(page.getByText("세션 트랜스크립트")).toBeVisible();
    await expect(page.getByText("기법 사용 분포")).toBeVisible();
    await expect(page.getByText("파일럿 증거 원장")).toBeVisible();
    await expect(page.getByText("1/3 쌍")).toBeVisible();
    const prepostInputs = page.locator(".sr-card--prepost input");
    await expect(prepostInputs).toHaveCount(6);
    await expect(prepostInputs.nth(0)).toHaveValue("3");
    await expect(prepostInputs.nth(1)).toHaveValue("4");
    const prepostLabels = await prepostInputs.evaluateAll((inputs) =>
      inputs.map((input) => input.getAttribute("aria-label")),
    );
    expect(prepostLabels).toEqual([
      "자기효능감 사전 점수",
      "자기효능감 사후 점수",
      "기술숙련도 사전 점수",
      "기술숙련도 사후 점수",
      "수련만족도 사전 점수",
      "수련만족도 사후 점수",
    ]);
    await expect(page.getByText("효과 판정과 통계 검정은 평가설계 확정 후 별도 산출합니다.")).toBeVisible();
    await expect(page.getByText("사례개념화 워크시트")).toBeVisible();
    await expect(page.getByText("감정 반영").first()).toBeVisible();
    await expect(page.getByText("AI 슈퍼바이저").first()).toBeVisible();
    await expect(page.getByText("다음에 시도할 문장")).toBeVisible();
    await expect(page.getByText("방어를 낮춘 감정 반영")).toBeVisible();
    await expect(page.getByText("개입 전 준비도 확인")).toBeVisible();
    await expect(page.locator(".sr-chart__svg")).toBeVisible();
    await expect(page.locator(".sr-ws-input").first()).toBeVisible();
    await expect(page.getByRole("button", { name: "오디오 다시 듣기" })).toBeEnabled();
    await expect(page.getByRole("button", { name: "PDF 내보내기" })).toBeEnabled();
    await expectReviewRegionsReachable(page);
    await expectNoHorizontalOverflow(page);
  });

  test("stores learner pre/post pilot evidence without effect claims", async ({ page }) => {
    await signInAsLearner(page);
    await routeFilledSessionReview(page);
    await routePrepostMeasures(page);

    await page.goto(`/learn/session/${FILLED_REVIEW_SESSION_ID}/review`);
    await expect(page.locator(".sr-card--prepost")).toBeVisible({ timeout: 15_000 });

    const prepostInputs = page.locator(".sr-card--prepost input");
    await expect(prepostInputs).toHaveCount(6);
    await expect(page.getByText("1/3 쌍")).toBeVisible();
    await expect(page.getByText("효과 판정과 통계 검정은 평가설계 확정 후 별도 산출합니다.")).toBeVisible();

    await prepostInputs.nth(2).fill("2.5");
    await prepostInputs.nth(3).fill("3.5");
    await expect(prepostInputs.nth(2)).toHaveValue("2.5");
    await expect(prepostInputs.nth(3)).toHaveValue("3.5");
    await page.getByRole("button", { name: "점수 저장" }).click();

    await expect(page.getByText("2/3 쌍")).toBeVisible();
    await expect(page.locator(".sr-prepost__actions")).toContainText("저장된 값 기준");
  });
});