import assert from 'node:assert/strict';
import test from 'node:test';
import type { TestContext } from 'node:test';
import type { Transaction } from 'sequelize';

import db from '../../src/db/models/index.ts';
import PublishService from '../../src/services/publish.ts';
import type {
  ProjectCreatePayload,
  ProjectModelRecord,
  ProjectTransitionSettingsFieldMapping,
  ProjectUiControlSettingsFieldMapping,
  PublishCloneData,
  PublishClonePayload,
  PublishCloneSource,
  RuntimeEnvironment,
  TourPageCreatePayload,
} from '../../src/types/index.ts';

const suffix = `${Date.now()}-${process.pid}`;
const actorId = '094121b9-c567-469a-b256-ba221b7fd5d6';

void test.after(async () => {
  await db.sequelize.close();
});

async function authenticateWithTimeout(timeoutMs = 1500): Promise<void> {
  let timeoutId: NodeJS.Timeout | undefined;
  const timeout = new Promise<never>((_, reject) => {
    timeoutId = setTimeout(
      () => reject(new Error(`Database unavailable after ${timeoutMs}ms`)),
      timeoutMs,
    );
  });

  try {
    await Promise.race([db.sequelize.authenticate(), timeout]);
  } finally {
    if (timeoutId !== undefined) {
      clearTimeout(timeoutId);
    }
  }
}

async function withTransaction(
  t: TestContext,
  callback: (transaction: Transaction) => Promise<void>,
): Promise<void> {
  try {
    await authenticateWithTimeout();
  } catch (error) {
    const message = error instanceof Error ? error.message : 'unknown error';
    t.skip(`Database unavailable: ${message}`);
    return;
  }

  const transaction = await db.sequelize.transaction();
  try {
    await callback(transaction);
  } finally {
    await transaction.rollback();
  }
}

async function createProject(
  slug: string,
  transaction: Transaction,
): Promise<ProjectModelRecord> {
  const data: ProjectCreatePayload = {
    id: undefined,
    name: `Publish Test ${slug}`,
    slug,
    description: undefined,
    logo_url: undefined,
    favicon_url: undefined,
    og_image_url: undefined,
    design_width: undefined,
    design_height: undefined,
    production_presentation_visibility: 'public',
    importHash: null,
    createdById: null,
    updatedById: null,
  };

  return db.projects.create(data, { transaction });
}

interface TourPageSeed {
  projectId: string;
  environment: RuntimeEnvironment;
  name: string;
  slug: string;
  sortOrder: number;
}

function createTourPage(
  data: TourPageSeed,
  transaction: Transaction,
) {
  const payload: TourPageCreatePayload = {
    id: undefined,
    projectId: data.projectId,
    environment: data.environment,
    source_key: null,
    name: data.name,
    slug: data.slug,
    sort_order: data.sortOrder,
    background_image_url: `${data.environment}/${data.slug}.jpg`,
    background_video_url: null,
    background_embed_url: null,
    background_audio_url: null,
    background_audio_autoplay: true,
    background_audio_loop: true,
    background_audio_start_time: null,
    background_audio_end_time: null,
    background_loop: false,
    background_video_autoplay: true,
    background_video_loop: true,
    background_video_muted: true,
    background_video_start_time: null,
    background_video_end_time: null,
    design_width: null,
    design_height: null,
    requires_auth: false,
    ui_schema_json: {
      elements: [{ id: `${data.slug}-button`, type: 'button' }],
    },
    global_ui_controls_settings_json: {
      sound: { enabled: true },
    },
    importHash: null,
    createdById: null,
    updatedById: null,
  };

  return db.tour_pages.create(
    payload,
    { transaction },
  );
}

async function countPages(
  projectId: string,
  environment: RuntimeEnvironment,
  transaction: Transaction,
): Promise<number> {
  const result = await db.tour_pages.findAndCountAll({
    where: { projectId, environment },
    include: [],
    distinct: true,
    order: [['createdAt', 'ASC']],
    transaction,
  });

  return result.count;
}

function createDevAudioTrack(
  data: {
    projectId: string;
    name: string;
    slug: string;
    url: string;
    loop: boolean;
    volume: number;
    sort_order: number;
    is_enabled: boolean;
  },
  transaction: Transaction,
): Promise<PublishCloneSource> {
  return db.project_audio_tracks.create(
    {
      ...data,
      environment: 'dev',
      createdById: actorId,
      updatedById: actorId,
    },
    { transaction },
  );
}

interface TargetAudioTrackSeed {
  projectId: string;
  environment: 'stage' | 'production';
  name: string;
  slug: string;
  url: string;
}

function createTargetAudioTrack(
  data: TargetAudioTrackSeed,
  transaction: Transaction,
): Promise<void> {
  const payload: PublishClonePayload = {
    ...data,
    source_key: 'old-source',
    createdById: null,
    updatedById: null,
  };

  return db.project_audio_tracks.bulkCreate(
    [payload],
    { transaction, returning: false },
  );
}

function createTransitionSettings(
  projectId: string,
  environment: RuntimeEnvironment,
  data: Omit<ProjectTransitionSettingsFieldMapping, 'id' | 'source_key'>,
  transaction: Transaction,
) {
  return db.project_transition_settings.create(
    {
      id: undefined,
      source_key: null,
      ...data,
      projectId,
      environment,
      createdById: null,
      updatedById: null,
    },
    { transaction },
  );
}

function createUiControlSettings(
  projectId: string,
  environment: RuntimeEnvironment,
  data: Omit<ProjectUiControlSettingsFieldMapping, 'id' | 'source_key'>,
  transaction: Transaction,
) {
  return db.project_ui_control_settings.create(
    {
      id: undefined,
      source_key: null,
      ...data,
      projectId,
      environment,
      createdById: null,
      updatedById: null,
    },
    { transaction },
  );
}

function cloneData(record: PublishCloneSource | null): PublishCloneData {
  if (!record) {
    throw new Error('Expected clone record to exist.');
  }

  return record.toJSON();
}

void test('copyDevToStage replaces stage content with dev pages, audio, and settings', async (t) => {
  await withTransaction(t, async (transaction) => {
    const project = await createProject(
      `publish-copy-dev-stage-${suffix}`,
      transaction,
    );
    const sourcePage = await createTourPage(
      {
        projectId: project.id,
        environment: 'dev',
        name: 'Dev Lobby',
        slug: 'lobby',
        sortOrder: 1,
      },
      transaction,
    );
    await createTourPage(
      {
        projectId: project.id,
        environment: 'stage',
        name: 'Old Stage Lobby',
        slug: 'old-lobby',
        sortOrder: 99,
      },
      transaction,
    );
    const sourceAudio = await createDevAudioTrack(
      {
        projectId: project.id,
        name: 'Narration',
        slug: 'narration',
        url: 'audio/narration.mp3',
        loop: true,
        volume: 0.7,
        sort_order: 1,
        is_enabled: true,
      },
      transaction,
    );
    await createTargetAudioTrack(
      {
        projectId: project.id,
        environment: 'stage',
        name: 'Old Stage Audio',
        slug: 'old-stage-audio',
        url: 'audio/old.mp3',
      },
      transaction,
    );
    const sourceTransition = await createTransitionSettings(
      project.id,
      'dev',
      {
        transition_type: 'fade',
        duration_ms: 450,
        easing: 'linear',
        overlay_color: '#111111',
      },
      transaction,
    );
    const sourceTransitionPlain = sourceTransition.get({ plain: true });
    const sourceUiControls = await createUiControlSettings(
      project.id,
      'dev',
      {
        settings_json: {
          fullscreen: { enabled: false },
          sound: { enabled: true },
        },
      },
      transaction,
    );
    const sourceUiControlsPlain = sourceUiControls.get({ plain: true });
    await createUiControlSettings(
      project.id,
      'stage',
      {
        settings_json: { old: true },
      },
      transaction,
    );

    const summary = await PublishService.copyDevToStage(
      project.id,
      { id: actorId },
      transaction,
    );

    assert.deepEqual(summary, {
      pages_copied: 1,
      audios_copied: 1,
      transition_settings_copied: 1,
      ui_control_settings_copied: 1,
    });
    assert.equal(await countPages(project.id, 'dev', transaction), 1);
    assert.equal(await countPages(project.id, 'stage', transaction), 1);

    const copiedPage = await db.tour_pages.findOne({
      where: {
        projectId: project.id,
        environment: 'stage',
        slug: 'lobby',
      },
      transaction,
    });
    assert.ok(copiedPage);
    assert.notEqual(copiedPage.id, sourcePage.id);
    assert.equal(copiedPage.source_key, sourcePage.id);
    assert.deepEqual(copiedPage.ui_schema_json, {
      elements: [{ id: 'lobby-button', type: 'button' }],
    });

    const stageAudios = await db.project_audio_tracks.findAll({
      where: { projectId: project.id, environment: 'stage' },
      transaction,
    });
    const copiedAudio = stageAudios.map((row) => row.toJSON()).find(
      (row) => row.slug === 'narration',
    );
    assert.ok(copiedAudio);
    assert.equal(copiedAudio.source_key, sourceAudio.id);
    assert.equal(copiedAudio.url, 'audio/narration.mp3');

    const copiedTransition = cloneData(
      await db.project_transition_settings.findOne({
        where: { projectId: project.id, environment: 'stage' },
        transaction,
      }),
    );
    assert.equal(copiedTransition.source_key, sourceTransitionPlain.id);
    assert.equal(copiedTransition.duration_ms, 450);

    const copiedUiControls = cloneData(
      await db.project_ui_control_settings.findOne({
        where: { projectId: project.id, environment: 'stage' },
        transaction,
      }),
    );
    assert.equal(copiedUiControls.source_key, sourceUiControlsPlain.id);
    assert.deepEqual(copiedUiControls.settings_json, {
      fullscreen: { enabled: false },
      sound: { enabled: true },
    });
  });
});

void test('copyStageToProduction leaves stage content intact while replacing production', async (t) => {
  await withTransaction(t, async (transaction) => {
    const project = await createProject(
      `publish-copy-stage-production-${suffix}`,
      transaction,
    );
    const sourcePage = await createTourPage(
      {
        projectId: project.id,
        environment: 'stage',
        name: 'Stage Intro',
        slug: 'intro',
        sortOrder: 1,
      },
      transaction,
    );
    await createTourPage(
      {
        projectId: project.id,
        environment: 'production',
        name: 'Old Production Intro',
        slug: 'old-intro',
        sortOrder: 1,
      },
      transaction,
    );

    const summary = await PublishService.copyStageToProduction(
      project.id,
      undefined,
      transaction,
    );

    assert.deepEqual(summary, {
      pages_copied: 1,
      audios_copied: 0,
      transition_settings_copied: 0,
      ui_control_settings_copied: 0,
    });
    assert.equal(await countPages(project.id, 'stage', transaction), 1);
    assert.equal(await countPages(project.id, 'production', transaction), 1);

    const productionPage = await db.tour_pages.findOne({
      where: {
        projectId: project.id,
        environment: 'production',
        slug: 'intro',
      },
      transaction,
    });

    assert.ok(productionPage);
    assert.notEqual(productionPage.id, sourcePage.id);
    assert.equal(productionPage.source_key, sourcePage.id);
  });
});