import assert from "node:assert/strict";
import { spawnSync } from "node:child_process";
import { fileURLToPath } from "node:url";
import test from "node:test";

import { startPostgresFixture } from "./helpers/postgres-fixture.ts";

const runnerPath = fileURLToPath(new URL("../scripts/db-migrate.mjs", import.meta.url));
const userId = "82000000-0000-4000-8000-000000000082";
const personId = "82000000-0000-4000-8000-000000000182";
const partnerId = "82000000-0000-4000-8000-000000000282";
const reportId = "82000000-0000-4000-8000-000000000382";
const secondReportId = "82000000-0000-4000-8000-000000000482";
const duplicateReportId = "82000000-0000-4000-8000-000000001282";
const changedReportId = "82000000-0000-4000-8000-000000000582";
const requestId = "82000000-0000-4000-8000-000000000682";
const secondRequestId = "82000000-0000-4000-8000-000000000782";
const changedRequestId = "82000000-0000-4000-8000-000000000882";
const refundRequestId = "82000000-0000-4000-8000-000000000982";
const settleRequestId = "82000000-0000-4000-8000-000000001082";
const releaseRequestId = "82000000-0000-4000-8000-000000001182";
const fingerprint = "a".repeat(64);
const otherFingerprint = "b".repeat(64);
const changedFingerprint = "c".repeat(64);
const rulesVersion = "bde5d615:marriage_match_product_v1";
const skillHash = "d".repeat(64);

function dockerAvailable(): boolean {
  return spawnSync("docker", ["version", "--format", "{{.Server.Version}}"], { encoding: "utf8", stdio: "ignore" }).status === 0;
}

function lastLine(value: string): string {
  const lines = value.split(/\r?\n/).map((line) => line.trim()).filter(Boolean);
  return lines[lines.length - 1] ?? "";
}

test("synastry reports reuse a pair, drop with the person, and settle the synastry.full reservation", {
  skip: dockerAvailable() ? false : "docker unavailable on this host",
}, () => {
  const fixture = startPostgresFixture();
  try {
    const migration = spawnSync(process.execPath, [runnerPath], {
      encoding: "utf8",
      env: { ...process.env, SCHEMA_DATABASE_URL: fixture.connectionUrl("schema_owner", "schema-owner-test-password") },
    });
    assert.equal(migration.status, 0, `${migration.stdout}${migration.stderr}`);

    fixture.psql(`
      insert into identity.users (id, name, email, email_verified, email_verified_at)
      values ('${userId}', 'Fictional Synastry', '${userId}@example.invalid', true, now());
      update public.profiles set credits = 10 where id = '${userId}';
      insert into public.chart_profiles (id, user_id, role, profile)
      values
        ('${personId}', '${userId}', 'other', '{}'::jsonb),
        ('${partnerId}', '${userId}', 'other', '{}'::jsonb);
    `);

    const insertReport = (id: string, request: string, lowPrint: string) => `
      insert into public.personal_reports (
        id, user_id, chart_profile_id, partner_chart_profile_id, request_id, request_fingerprint,
        report_type, status, schema_version, presentation_mode, requested_themes, depth,
        skill_name, skill_version, skill_source_commit, skill_snapshot_sha256,
        subject_low, subject_high, fingerprint_low, fingerprint_high, synastry_rules_version
      ) values (
        '${id}', '${userId}', '${personId}', '${partnerId}', '${request}', '${fingerprint}',
        'synastry_full', 'generating', 'synastry_report.v1', 'default', array[]::text[], 'standard',
        'jyotish-full-synastry-reading', '1.0.0', '${"e".repeat(40)}', '${skillHash}',
        '${personId}', '${partnerId}', '${lowPrint}', '${otherFingerprint}', '${rulesVersion}'
      );
    `;
    const closeJob = `
      update public.personal_report_jobs
      set status = 'cancelled', finished_at = now()
      where user_id = '${userId}' and status = 'queued';
    `;
    fixture.psql(insertReport(reportId, requestId, fingerprint));
    fixture.psql(`
      update public.personal_reports
      set status = 'ready', completed_at = now(), report_document = '{}'::jsonb,
          calculation_hash = '${skillHash}', evidence_hash = '${skillHash}'
      where id = '${reportId}';
      ${closeJob}
    `);
    // 原值：第二份 ready 插入被 personal_reports_synastry_pair_ready_uidx 拒绝，count 为 1
    // 新值：同一对可以再有一份 ready，count 为 2
    // 原因：K6 推翻复用，旧报告保留（BUG-1408）
    fixture.psql(`
      begin;
      ${insertReport(duplicateReportId, secondRequestId, fingerprint)}
      update public.personal_reports
      set status = 'ready', completed_at = now(), report_document = '{}'::jsonb,
          calculation_hash = '${skillHash}', evidence_hash = '${skillHash}'
      where id = '${duplicateReportId}';
      commit;
    `);
    assert.equal(lastLine(fixture.psql(`
      select count(*) from public.personal_reports
      where user_id = '${userId}' and fingerprint_low = '${fingerprint}' and status = 'ready';
    `)), "2");
    fixture.psql(closeJob);

    fixture.psql(insertReport(changedReportId, changedRequestId, changedFingerprint));
    fixture.psql(`
      update public.personal_reports
      set status = 'ready', completed_at = now(), report_document = '{}'::jsonb,
          calculation_hash = '${skillHash}', evidence_hash = '${skillHash}'
      where id = '${changedReportId}';
      update public.personal_report_jobs
      set status = 'cancelled', finished_at = now()
      where user_id = '${userId}' and status = 'queued';
    `);
    assert.equal(lastLine(fixture.psql(`
      select count(*) from public.personal_reports
      where user_id = '${userId}' and fingerprint_low = '${changedFingerprint}' and status = 'ready';
    `)), "1");

    assert.equal(
      fixture.psql(`select success::text || '|' || credits::text from public.authorize_usage('${userId}','synastry.full',null,'${settleRequestId}',2)`),
      "true|8",
    );
    assert.equal(
      fixture.psql(`select success::text from public.complete_usage('${userId}','${settleRequestId}','{"actualModelId":"standard-model","inputTokens":1,"outputTokens":1,"costMicrousd":1,"durationMs":1}'::jsonb)`),
      "true",
    );
    assert.equal(fixture.psql(`select status from public.usage_reservations where request_id = '${settleRequestId}'`), "completed");
    assert.equal(fixture.psql(`select credits from public.profiles where id = '${userId}'`), "8");

    assert.equal(
      fixture.psql(`select success::text || '|' || credits::text from public.authorize_usage('${userId}','synastry.full',null,'${releaseRequestId}',2)`),
      "true|6",
    );
    assert.equal(
      fixture.psql(`select success::text || '|' || credits::text from public.release_usage('${userId}','${releaseRequestId}','generation failed')`),
      "true|8",
    );
    assert.equal(fixture.psql(`select status from public.usage_reservations where request_id = '${releaseRequestId}'`), "released");

    assert.equal(
      fixture.psql(`select success::text || '|' || credits::text from public.authorize_usage('${userId}','synastry.full',null,'${refundRequestId}',2)`),
      "true|6",
    );
    fixture.psql(`
      insert into public.personal_reports (
        id, user_id, request_id, request_fingerprint, report_type, status,
        schema_version, presentation_mode, requested_themes, depth,
        skill_name, skill_version, skill_source_commit, skill_snapshot_sha256
      ) values (
        '${secondReportId}', '${userId}', '${refundRequestId}', '${fingerprint}', 'synastry_full', 'generating',
        'synastry_report.v1', 'default', array[]::text[], 'standard',
        'jyotish-full-synastry-reading', '1.0.0', '${"e".repeat(40)}', '${skillHash}'
      );
      delete from public.personal_reports where id = '${secondReportId}';
      update public.personal_report_jobs
      set status = 'cancelled', finished_at = now()
      where user_id = '${userId}' and status = 'queued';
    `);
    assert.equal(fixture.psql(`select status from public.usage_reservations where request_id = '${refundRequestId}'`), "released");
    assert.equal(fixture.psql(`select credits from public.profiles where id = '${userId}'`), "8");

    fixture.psqlAs(
      "app_runtime",
      "app-runtime-test-password",
      `set role authenticated; select set_config('request.jwt.claim.sub', '${userId}', true); select public.delete_chart_subject('${personId}');`,
    );
    assert.equal(fixture.psql(`select count(*) from public.personal_reports where user_id = '${userId}' and report_type = 'synastry_full'`), "0");
  } finally {
    fixture.stop();
  }
});