import assert from "node:assert/strict";
import test from "node:test";

import {
  RectificationCaseServiceError,
  adoptLegacyRectificationSkill,
  closeRectificationCase,
  getRectificationCase,
  getRectificationSkillIdentityStatus,
  getRectificationEntrySummary,
  loadV9RectificationProfile,
  mapRectificationRpcError,
  openRectificationCase,
  upgradeRectificationSkill,
} from "../src/lib/rectification-agentic/v9/case-service.ts";
import type { OpenRectificationCaseRequest } from "../src/lib/rectification-agentic/v9/open-request.ts";

type RpcHandler = (fn: string, args: Record<string, unknown>) => Promise<{
  data: unknown;
  error: { message: string } | null;
}>;

function fakeAccounting(overrides: {
  profile?: Record<string, unknown> | null;
  rpc?: RpcHandler;
}) {
  const rpc =
    overrides.rpc ??
    (async () => ({ data: null, error: { message: "agentic_rectification_case_not_found" } }));
  return {
    from: (table: string) => {
      if (table !== "profiles") throw new Error(`unexpected table ${table}`);
      const builder = {
        select: () => builder,
        eq: () => builder,
        single: async () => {
          if (!overrides.profile) return { data: null, error: { message: "not found" } };
          return { data: overrides.profile, error: null };
        },
      };
      return builder;
    },
    rpc,
  } as never;
}

const completeProfile = {
  birth_date: "1997-08-08",
  birth_place_label: "河北省邯郸市",
  reported_birth_time: "05:00",
  active_birth_time: null,
  birth_time_source: "family_exact",
  birth_time_period: null,
  uncertainty_before_minutes: 10,
  uncertainty_after_minutes: 10,
  latitude: 36.420487,
  longitude: 114.209936,
  timezone_id: "Asia/Shanghai",
  timezone_offset: 8,
};

const requestId = "aaaaaaaa-bbbb-4ccc-8ddd-eeeeeeeeeeee";
const caseId = "11111111-1111-4111-8111-111111111111";
const sessionId = "22222222-2222-4222-8222-222222222222";

function openRpc(data: unknown): RpcHandler {
  return async () => ({ data, error: null });
}

test("loadV9RectificationProfile derives baseline snapshot, fingerprint and range server-side", async () => {
  const accounting = fakeAccounting({ profile: completeProfile });
  const profile = await loadV9RectificationProfile(accounting, "user-1");
  assert.equal(profile.userId, "user-1");
  assert.equal(profile.baseline.birth_date, "1997-08-08");
  assert.equal(profile.baseline.birth_place_label, "河北省邯郸市");
  assert.equal(profile.baseline.timezone_id, "Asia/Shanghai");
  assert.equal(profile.baselineFingerprint.length, 64);
  assert.deepEqual(profile.candidateRange, { start_time: "04:50", end_time: "05:10" });
  assert.ok(!("password" in profile.baseline));
});

test("loadV9RectificationProfile normalizes PostgreSQL Date birth dates", async () => {
  const dateProfile = {
    ...completeProfile,
    birth_date: new Date("1997-08-08T00:00:00.000Z"),
  };
  const accounting = fakeAccounting({ profile: dateProfile });
  const profile = await loadV9RectificationProfile(accounting, "user-1");
  assert.equal(profile.baseline.birth_date, "1997-08-08");
});

test("loadV9RectificationProfile rejects incomplete profiles without creating a case", async () => {
  for (const incomplete of [
    { ...completeProfile, latitude: null, longitude: null, timezone_offset: null },
    { ...completeProfile, birth_place_label: "" },
    { ...completeProfile, timezone_id: "" },
  ]) {
    const accounting = fakeAccounting({ profile: incomplete });
    await assert.rejects(
      () => loadV9RectificationProfile(accounting, "user-1"),
      (error: unknown) =>
        error instanceof RectificationCaseServiceError && error.code === "profile_incomplete",
    );
  }
});

test("period-only profiles derive a period range; unknown derives the full day", async () => {
  const period = fakeAccounting({
    profile: {
      ...completeProfile,
      reported_birth_time: null,
      birth_time_source: "period_only",
      birth_time_period: "morning",
    },
  });
  const periodProfile = await loadV9RectificationProfile(period, "user-1");
  assert.deepEqual(periodProfile.candidateRange, { start_time: "08:00", end_time: "11:59" });

  const unknown = fakeAccounting({
    profile: {
      ...completeProfile,
      reported_birth_time: null,
      birth_time_source: "unknown",
      birth_time_period: null,
    },
  });
  const unknownProfile = await loadV9RectificationProfile(unknown, "user-1");
  assert.deepEqual(unknownProfile.candidateRange, { start_time: "00:00", end_time: "23:59" });
});

test("homepage open with no history creates one case and one session", async () => {
  const accounting = fakeAccounting({
    profile: completeProfile,
    rpc: openRpc({
      disposition: "created",
      case_id: caseId,
      session_id: sessionId,
      status: "draft",
      should_start_opening: true,
      skill_version: "9.0.0",
    }),
  });
  const request: OpenRectificationCaseRequest = { intent: "homepage", requestId };
  const response = await openRectificationCase(accounting, "user-1", request);
  assert.equal(response.disposition, "created");
  assert.equal(response.caseId, caseId);
  assert.equal(response.sessionId, sessionId);
  assert.equal(response.shouldStartOpening, true);
});

test("homepage open may create a new case even when resumable history exists", async () => {
  const accounting = fakeAccounting({
    profile: completeProfile,
    rpc: openRpc({
      disposition: "created",
      case_id: caseId,
      session_id: sessionId,
      status: "draft",
      should_start_opening: true,
      skill_version: "9.0.0",
    }),
  });
  const response = await openRectificationCase(accounting, "user-1", {
    intent: "homepage",
    requestId,
  });
  assert.equal(response.disposition, "created");
  assert.equal(response.shouldStartOpening, true);
});

test("session intent passes the exact sessionId and never the profile snapshot", async () => {
  const capturedArgs: { value: Record<string, unknown> | null } = { value: null };
  const accounting = fakeAccounting({
    profile: null,
    rpc: async (fn, args) => {
      capturedArgs.value = args;
      return {
        data: {
          disposition: "readonly",
          case_id: caseId,
          session_id: sessionId,
          status: "closed",
          should_start_opening: false,
          skill_version: "9.0.0",
        },
        error: null,
      };
    },
  });
  const response = await openRectificationCase(accounting, "user-1", {
    intent: "session",
    requestId,
    sessionId,
  });
  assert.equal(response.disposition, "readonly");
  assert.equal(capturedArgs.value?.p_session_id, sessionId);
  assert.deepEqual(capturedArgs.value?.p_baseline_birth_snapshot, {});
});

test("non-owner session opens surface a safe not-found error", async () => {
  const accounting = fakeAccounting({
    profile: null,
    rpc: async () => ({ data: null, error: { message: "agentic_rectification_session_not_found" } }),
  });
  await assert.rejects(
    () =>
      openRectificationCase(accounting, "user-1", {
        intent: "session",
        requestId,
        sessionId: "99999999-9999-4999-8999-999999999999",
      }),
    (error: unknown) =>
      error instanceof RectificationCaseServiceError && error.code === "case_session_not_found",
  );
});

test("legacy active-case conflicts still map to a safe public error", async () => {
  const accounting = fakeAccounting({
    profile: completeProfile,
    rpc: async () => ({ data: null, error: { message: "agentic_rectification_active_case_conflict" } }),
  });
  await assert.rejects(
    () => openRectificationCase(accounting, "user-1", { intent: "new", requestId }),
    (error: unknown) =>
      error instanceof RectificationCaseServiceError && error.code === "active_case_conflict",
  );
});

test("entry summary projects resumable history for homepage context", async () => {
  const accounting = fakeAccounting({
    rpc: async (fn) => {
      assert.equal(fn, "get_agentic_rectification_entry_summary");
      return {
        data: {
          has_resumable_case: true,
          has_terminal_case_with_time: false,
          latest_resumable: {
            case_id: caseId,
            status: "collecting_evidence",
            last_activity_at: "2026-08-12T00:00:00.000Z",
          },
          latest_terminal: null,
        },
        error: null,
      };
    },
  });
  const summary = await getRectificationEntrySummary(accounting, "user-1");
  assert.equal(summary.hasResumableCase, true);
  assert.equal(summary.hasTerminalCaseWithTime, false);
  assert.equal(summary.latestResumable?.caseId, caseId);
});

test("get case returns a sanitized projection without the birth snapshot", async () => {
  const accounting = fakeAccounting({
    rpc: async () => ({
      data: {
        case_id: caseId,
        session_id: sessionId,
        status: "candidate_ready",
        skill_name: "jyotish-birth-time-rectification",
        skill_version: "9.0.0",
        candidate_range: { start_time: "04:50", end_time: "05:10" },
        accepted_time: null,
        confirmed_time: null,
        created_at: "2026-08-12T00:00:00.000Z",
        last_activity_at: "2026-08-12T00:00:00.000Z",
        completed_at: null,
        closed_reason: null,
        evidence_count: 3,
        turn_count: 4,
        latest_result: null,
      },
      error: null,
    }),
  });
  const view = await getRectificationCase(accounting, "user-1", caseId);
  assert.equal(view.caseId, caseId);
  assert.equal(view.evidenceCount, 3);
  assert.deepEqual(view.candidateRange, { start_time: "04:50", end_time: "05:10" });
  assert.ok(!("baseline_birth_snapshot" in view));
  assert.ok(!("birth_date" in view));
});

test("close is idempotent and never wraps as engine confirmed", async () => {
  const accounting = fakeAccounting({
    rpc: async (fn, args) => {
      assert.equal(args.p_reason, "completed_by_user");
      return { data: { success: true, case_id: caseId, status: "closed", idempotent: false }, error: null };
    },
  });
  const result = await closeRectificationCase(accounting, "user-1", caseId, "completed_by_user");
  assert.equal(result.status, "closed");
  assert.equal(result.idempotent, false);
});

test("skill identity status preserves legacy adoption state", async () => {
  const accounting = fakeAccounting({
    rpc: async (fn) => {
      assert.equal(fn, "get_agentic_rectification_skill_identity_status");
      return {
        data: {
          skill_name: "jyotish-birth-time-rectification",
          skill_version: "8.9.0",
          skill_sha256: null,
          skill_source_commit: null,
          skill_identity_status: "legacy_unverifiable",
          requires_skill_adoption: true,
        },
        error: null,
      };
    },
  });
  const status = await getRectificationSkillIdentityStatus(accounting, "user-1", caseId);
  assert.equal(status.status, "legacy_unverifiable");
  assert.equal(status.skillSha256, null);
  assert.equal(status.requiresSkillAdoption, true);
});

test("legacy adoption calls the explicit RPC and keeps a null previous hash", async () => {
  const accounting = fakeAccounting({
    rpc: async (fn, args) => {
      assert.equal(fn, "adopt_agentic_rectification_skill_v1");
      assert.equal(args.p_skill_name, "jyotish-birth-time-rectification");
      assert.equal(args.p_skill_version, "9.0.0");
      assert.equal(args.p_skill_sha256, "5acb3103e80993ea611b93d2c1746e70b74aff8f8636bcffc80a837b954b470d");
      return {
        data: {
          success: true,
          case_id: caseId,
          previous_skill_name: "jyotish-birth-time-rectification",
          previous_skill_version: "8.9.0",
          previous_skill_sha256: null,
          previous_source_commit: null,
          previous_identity_status: "legacy_unverifiable",
          upgrade_kind: "legacy_adoption",
          skill_name: "jyotish-birth-time-rectification",
          skill_version: "9.0.0",
          skill_sha256: "5acb3103e80993ea611b93d2c1746e70b74aff8f8636bcffc80a837b954b470d",
          source_commit: "0fd111d16b45796086a6c1d0945dbd3de6755d8a",
          receipt_id: "33333333-3333-4333-8333-333333333333",
          idempotent: false,
        },
        error: null,
      };
    },
  });
  const result = await adoptLegacyRectificationSkill(accounting, "user-1", caseId, "9.0.0");
  assert.equal(result.previousSkillSha256, null);
  assert.equal(result.idempotent, false);
});

test("upgrade skill resolves and passes the exact registered identity", async () => {
  const accounting = fakeAccounting({
    rpc: async (fn, args) => {
      assert.equal(fn, "upgrade_agentic_rectification_skill_v2");
      assert.equal(args.p_skill_name, "jyotish-birth-time-rectification");
      assert.equal(args.p_skill_version, "9.0.0");
      assert.equal(
        args.p_skill_sha256,
        "5acb3103e80993ea611b93d2c1746e70b74aff8f8636bcffc80a837b954b470d",
      );
      assert.equal(
        args.p_skill_source_commit,
        "0fd111d16b45796086a6c1d0945dbd3de6755d8a",
      );
      return {
        data: {
          success: true,
          case_id: caseId,
          previous_skill_version: "8.9.0",
          skill_version: "9.0.0",
          idempotent: false,
        },
        error: null,
      };
    },
  });
  const result = await upgradeRectificationSkill(accounting, "user-1", caseId, "9.0.0");
  assert.equal(result.skillVersion, "9.0.0");
});

test("rpc errors map to safe public views without leaking database text", async () => {
  const generic = mapRectificationRpcError(new Error("syntax error at or near \"profiles\""));
  assert.equal(generic.status, 500);
  assert.equal(generic.code, "rectification_service_failed");
  assert.doesNotMatch(generic.message, /syntax error/);

  const conflict = mapRectificationRpcError(new Error("agentic_rectification_active_case_conflict"));
  assert.equal(conflict.status, 409);
  assert.equal(conflict.code, "active_case_conflict");
  assert.doesNotMatch(conflict.message, /agentic_rectification/);

  const notFound = mapRectificationRpcError(new Error("agentic_rectification_case_not_found"));
  assert.equal(notFound.status, 404);
  assert.equal(notFound.code, "case_not_found");

  const publicLegacy = mapRectificationRpcError(new Error("agentic_rectification_skill_identity_unverifiable"));
  assert.equal(publicLegacy.status, 409);
  assert.equal(publicLegacy.code, "skill_identity_unverifiable");
});