// @vitest-environment jsdom
import { act, cleanup, renderHook, waitFor } from '@testing-library/react';
import { afterEach, describe, expect, it, vi } from 'vitest';

import type {
  GameCreationAppAssetKind,
  GameCreationAppAssetManifestEntry,
} from '../../../packages/shared/src/contracts/gameCreationApp';
import { attachmentReferenceProvider } from '../src/features/project-workspace/reference-source/attachmentReferenceProvider';
import { createResourceReferenceProvider } from '../src/features/project-workspace/reference-source/resourceReferenceProvider';
import { runtimeRegionReferenceProvider } from '../src/features/project-workspace/reference-source/runtimeRegionReferenceProvider';
import { useSkillReferenceProvider } from '../src/features/project-workspace/reference-source/skillReferenceProvider';
import {
  type AttachmentReference,
  type ChatReference,
  chatReferenceKey,
  chatReferenceMentionToken,
  type ResourceReference,
  type RuntimeRegionReference,
} from '../src/features/project-workspace/resourceReferences';
import type { DirectCodexUserContentPart } from '../src/view/project-development/chat/generated/DirectCodexUserContentPart';

function asset(
  id: string,
  kind: GameCreationAppAssetKind,
  mediaType: string,
  localPath: string,
): GameCreationAppAssetManifestEntry {
  return {
    id,
    kind,
    mediaType,
    localPath,
    source: { kind: 'uploaded' },
  };
}

const heroAsset = asset(
  'asset-hero',
  'character',
  'image/png',
  'assets/hero-idle.png',
);

const runtimeRegionPart: DirectCodexUserContentPart = {
  type: 'agc_runtime_region_reference',
  label: '主画面',
  runId: 'run-1',
  versionId: 'version-1',
  elementTag: 'canvas',
  elementRole: 'playfield',
  text: '可试玩区域',
  width: 320,
  height: 180,
  resourceIds: ['asset-hero'],
};

const attachmentPart: DirectCodexUserContentPart = {
  type: 'agc_attachment_reference',
  name: 'brief.md',
  mediaType: 'text/markdown',
  size: 128,
  localPath: 'notes/brief.md',
  status: 'imported',
};

afterEach(() => {
  cleanup();
  vi.restoreAllMocks();
  window.__TAURI__ = undefined;
});

describe('资源引用 provider', () => {
  const provider = createResourceReferenceProvider({ assets: [heroAsset] });

  it('触发符是 `@`，且清单为空时先不自称就绪', () => {
    expect(provider.trigger).toBe('@');
    expect(createResourceReferenceProvider({ assets: [] }).isReady?.()).toBe(
      false,
    );
    // 清单到位后才允许把草稿落进编辑器，否则引用会被当成已删除丢掉。
    expect(provider.isReady?.()).toBe(true);
  });

  it('候选只含可提及素材，`fuzzyLookup` 按显示名 / id / kind 模糊过滤并截断到 8 条', () => {
    const assets = [
      heroAsset,
      asset('asset-icon', 'icon', 'image/png', 'assets/btn.png'),
      // 没有 localPath 与 `.agent/` 下的产物都不是可提及素材。
      asset('asset-orphan', 'image', 'image/png', ''),
      asset('asset-agent', 'document', 'text/markdown', '.agent/notes.md'),
    ];
    const scoped = createResourceReferenceProvider({ assets });
    expect(scoped.fuzzyLookup?.('')).toHaveLength(2);

    const many = Array.from({ length: 10 }, (_, index) =>
      asset(`asset-${index}`, 'image', 'image/png', `assets/pic-${index}.png`),
    );
    const limited = createResourceReferenceProvider({ assets: many });
    expect(limited.fuzzyLookup?.('')).toHaveLength(8);

    expect(provider.fuzzyLookup?.('hero')?.map((item) => item.type)).toEqual([
      'resource',
    ]);
    expect(provider.fuzzyLookup?.('HERO-IDLE')).toHaveLength(1);
    expect(provider.fuzzyLookup?.('character')).toHaveLength(1);
    expect(provider.fuzzyLookup?.('  hero  ')).toHaveLength(1);
    expect(provider.fuzzyLookup?.('missing')).toEqual([]);
  });

  it('同名不同目录的素材是两条候选：显示名相同，但身份键不同', () => {
    const sameName = createResourceReferenceProvider({
      assets: [
        asset('asset-hero-a', 'character', 'image/png', 'characters/hero.png'),
        asset('asset-hero-b', 'character', 'image/png', 'enemies/hero.png'),
      ],
    });

    const candidates = sameName.fuzzyLookup?.('') ?? [];
    // 显示 token 会撞（都是 `@hero`），所以候选菜单的 key 不能拿 token 当身份。
    expect(candidates.map((item) => chatReferenceMentionToken(item))).toEqual([
      '@hero',
      '@hero',
    ]);
    expect(new Set(candidates.map((item) => chatReferenceKey(item))).size).toBe(
      2,
    );
  });

  it('`lookup` 给精确查找用的全量清单：与菜单同一份可提及素材，但不受模糊过滤与截断影响', () => {
    const assets = [
      heroAsset,
      asset('asset-orphan', 'image', 'image/png', ''),
      ...Array.from({ length: 10 }, (_, index) =>
        asset(
          `asset-${index}`,
          'image',
          'image/png',
          `assets/pic-${index}.png`,
        ),
      ),
    ];
    const scoped = createResourceReferenceProvider({ assets });

    // 不可提及素材（没有 localPath）不在候选里，条目数与展示名口径与菜单一致。
    expect(scoped.fuzzyLookup?.('')).toHaveLength(8);
    expect(scoped.lookup?.()).toHaveLength(11);
    expect(scoped.lookup?.().map(chatReferenceMentionToken)).toEqual(
      expect.arrayContaining(['@hero-idle', '@pic-0', '@pic-9']),
    );
    // 粘贴解析只认「显示名逐字一致」的 token，所以候选的 token 必须是显示名形态。
    expect(
      scoped
        .lookup?.()
        .some(
          (item) => 'resourceId' in item && item.resourceId === 'asset-orphan',
        ),
    ).toBe(false);
    // 菜单就是「同一份候选 + query 过滤 + 截断」，所以截断后的前缀逐字一致。
    expect(scoped.lookup?.().slice(0, 8)).toEqual(scoped.fuzzyLookup?.(''));
  });

  it('清单为空时 `lookup` 是空数组：粘贴不会把任何 token 当成引用', () => {
    expect(createResourceReferenceProvider({ assets: [] }).lookup?.()).toEqual(
      [],
    );
  });

  it('`toReference` 只认资源 part：资产已删除时不合成引用', () => {
    expect(provider.toReference({ type: 'input_text', text: '看素材' })).toBe(
      null,
    );
    expect(provider.toReference(attachmentPart)).toBe(null);
    expect(
      provider.toReference({
        type: 'agc_resource_reference',
        resourceId: 'asset-hero',
      }),
    ).toMatchObject({ type: 'resource', label: 'hero-idle' });
    expect(
      provider.toReference({
        type: 'agc_resource_reference',
        resourceId: 'asset-gone',
      }),
    ).toBe(null);
  });

  it('`refresh` 按 manifest 换显示名：改名换新引用、未变恒等、已删除原样返回', () => {
    const reference = provider.fuzzyLookup?.('hero')?.[0] as ResourceReference;
    expect(provider.refresh(reference)).toBe(reference);

    const renamed = createResourceReferenceProvider({
      assets: [
        asset('asset-hero', 'character', 'image/png', 'assets/hero-v2.png'),
      ],
    });
    const refreshed = renamed.refresh(reference);
    expect(refreshed?.type === 'resource' ? refreshed.label : null).toBe(
      'hero-v2',
    );

    const deleted = createResourceReferenceProvider({
      assets: [asset('asset-other', 'icon', 'image/png', 'assets/btn.png')],
    });
    expect(deleted.refresh(reference)).toBe(reference);

    const skill: ChatReference = { type: 'skill', name: 'agc-test-skill' };
    expect(provider.refresh(skill)).toBe(null);
  });

  it('`mentionToken` 展开为 `@显示名`，清单缺失时退回引用 id', () => {
    expect(
      provider.mentionToken({
        type: 'agc_resource_reference',
        resourceId: 'asset-hero',
      }),
    ).toBe('@hero-idle');
    expect(
      provider.mentionToken({
        type: 'agc_resource_reference',
        resourceId: 'asset-gone',
      }),
    ).toBe('@asset-gone');
    expect(provider.mentionToken({ type: 'input_text', text: '看' })).toBe(
      null,
    );
  });
});

describe('附件 provider', () => {
  it('静默：没有触发符也没有候选，注入它不会加出任何入口', () => {
    expect(attachmentReferenceProvider.trigger).toBe(null);
    expect(attachmentReferenceProvider.fuzzyLookup).toBeUndefined();
  });

  it('附件名过同一份空白口径：`toReference` 与 `mentionToken` 都是 `@brief-v2.md`', () => {
    const part = {
      type: 'agc_attachment_reference' as const,
      name: 'brief v2.md',
      mediaType: 'text/markdown',
      size: 128,
      localPath: 'notes/brief v2.md',
      status: 'imported',
    };
    expect(attachmentReferenceProvider.toReference(part)).toMatchObject({
      type: 'attachment',
      name: 'brief-v2.md',
    });
    expect(attachmentReferenceProvider.mentionToken(part)).toBe('@brief-v2.md');
  });

  it('`toReference` 逐字搬运附件字段，并只认附件 part', () => {
    expect(attachmentReferenceProvider.toReference(attachmentPart)).toEqual({
      type: 'attachment',
      name: 'brief.md',
      mediaType: 'text/markdown',
      size: 128,
      localPath: 'notes/brief.md',
      status: 'imported',
    });
    expect(
      attachmentReferenceProvider.toReference({
        type: 'agc_resource_reference',
        resourceId: 'asset-hero',
      }),
    ).toBe(null);
    expect(
      attachmentReferenceProvider.toReference({ type: 'input_text', text: '' }),
    ).toBe(null);
  });

  it('`refresh` 对附件恒等，`mentionToken` 是 `@附件名`', () => {
    const reference = attachmentReferenceProvider.toReference(
      attachmentPart,
    ) as AttachmentReference;
    expect(attachmentReferenceProvider.refresh(reference)).toBe(reference);
    expect(
      attachmentReferenceProvider.refresh({ type: 'skill', name: 'x' }),
    ).toBe(null);
    expect(attachmentReferenceProvider.mentionToken(attachmentPart)).toBe(
      '@brief.md',
    );
    expect(
      attachmentReferenceProvider.mentionToken({
        type: 'input_text',
        text: '',
      }),
    ).toBe(null);
  });
});

describe('运行画面区域 provider', () => {
  it('静默且只认运行画面区域 part，可选字段缺失时收成 undefined', () => {
    expect(runtimeRegionReferenceProvider.trigger).toBe(null);
    expect(runtimeRegionReferenceProvider.match).toBeUndefined();
    expect(
      runtimeRegionReferenceProvider.toReference(runtimeRegionPart),
    ).toEqual({
      type: 'runtime-region',
      label: '主画面',
      runId: 'run-1',
      versionId: 'version-1',
      elementTag: 'canvas',
      elementRole: 'playfield',
      text: '可试玩区域',
      width: 320,
      height: 180,
      resourceIds: ['asset-hero'],
      source: 'runtime-picker',
    });
    expect(
      runtimeRegionReferenceProvider.toReference({
        type: 'agc_runtime_region_reference',
        label: '主画面',
        runId: null,
        versionId: null,
        elementTag: null,
        elementRole: null,
        text: null,
        width: null,
        height: null,
        resourceIds: [],
      }),
    ).toEqual({
      type: 'runtime-region',
      label: '主画面',
      runId: undefined,
      versionId: undefined,
      elementTag: undefined,
      elementRole: undefined,
      text: undefined,
      width: undefined,
      height: undefined,
      resourceIds: [],
      source: 'runtime-picker',
    });
    expect(attachmentReferenceProvider.toReference(runtimeRegionPart)).toBe(
      null,
    );
  });

  it('`refresh` 对运行区域恒等，`mentionToken` 是 `@标签`', () => {
    const reference = runtimeRegionReferenceProvider.toReference(
      runtimeRegionPart,
    ) as RuntimeRegionReference;
    expect(runtimeRegionReferenceProvider.refresh(reference)).toBe(reference);
    expect(
      runtimeRegionReferenceProvider.refresh({ type: 'skill', name: 'x' }),
    ).toBe(null);
    expect(runtimeRegionReferenceProvider.mentionToken(runtimeRegionPart)).toBe(
      '@主画面',
    );
    expect(
      runtimeRegionReferenceProvider.mentionToken({
        type: 'input_text',
        text: '@主画面',
      }),
    ).toBe(null);
  });
});

describe('Skill provider', () => {
  it('触发符是 `$`：挂载与 `fuzzyLookup` 都不发查询，菜单第一次打开时才读应用级目录', async () => {
    const invoke = vi.fn(async (command: string) => {
      if (command === 'list_agc_skill_catalog') {
        return [{ name: 'agc-test-skill', description: '测试 Skill' }];
      }
      if (command === 'list_client_extensions') return [];
      throw new Error(`unexpected invoke ${command}`);
    });
    window.__TAURI__ = { core: { invoke: invoke as never } };

    const { result } = renderHook(() => useSkillReferenceProvider());
    expect(result.current.trigger).toBe('$');
    expect(invoke).not.toHaveBeenCalled();

    // `fuzzyLookup` 是纯函数：输入区在渲染阶段调它，这里不能替 provider 发起任何读取。
    act(() => {
      expect(result.current.fuzzyLookup?.('')).toEqual([]);
    });
    expect(invoke).not.toHaveBeenCalled();

    // 懒加载只由菜单回调触发（菜单打开 → 输入区在 effect 里给非 null 的 query）。
    act(() => {
      result.current.onMenuQueryChange?.('');
    });
    await waitFor(() => {
      expect(invoke).toHaveBeenCalledWith('list_agc_skill_catalog');
    });
    await waitFor(() => {
      expect(result.current.fuzzyLookup?.('')).toHaveLength(1);
    });
    // 目录只读一次：后续每次敲 `$` 都复用同一份候选。
    expect(invoke).toHaveBeenCalledTimes(2);
    // 菜单关闭（query 为 `null`）不触发读取。
    act(() => {
      result.current.onMenuQueryChange?.(null);
    });
    expect(invoke).toHaveBeenCalledTimes(2);
    expect(result.current.fuzzyLookup?.('测试')?.[0]).toMatchObject({
      type: 'skill',
      name: 'agc-test-skill',
    });
  });

  it('目录里的名字带空白时折成 `-`：候选与 token 是同一份口径', async () => {
    const invoke = vi.fn(async (command: string) => {
      if (command === 'list_agc_skill_catalog') {
        return [{ name: 'agc test skill', description: '测试 Skill' }];
      }
      if (command === 'list_client_extensions') {
        return [
          {
            name: 'client skill',
            extensionType: 'skill',
            enabled: true,
            status: 'enabled',
          },
        ];
      }
      throw new Error(`unexpected invoke ${command}`);
    });
    window.__TAURI__ = { core: { invoke: invoke as never } };

    const { result } = renderHook(() => useSkillReferenceProvider());
    act(() => {
      result.current.onMenuQueryChange?.('');
    });
    await waitFor(() => {
      expect(result.current.lookup?.()).toHaveLength(2);
    });
    expect(
      result.current
        .lookup?.()
        .map((item) => (item.type === 'skill' ? item.name : null)),
    ).toEqual(['agc-test-skill', 'client-skill']);
    expect(
      result.current.mentionToken?.({
        type: 'agc_skill_reference',
        name: 'agc test skill',
      }),
    ).toBe('$agc-test-skill');
  });

  it('`lookup` 是纯函数：目录还没读就返回空数组、也不发起读取，菜单打开后才查得到', async () => {
    const invoke = vi.fn(async (command: string) => {
      if (command === 'list_agc_skill_catalog') {
        return [{ name: 'agc-test-skill', description: '测试 Skill' }];
      }
      if (command === 'list_client_extensions') return [];
      throw new Error(`unexpected invoke ${command}`);
    });
    window.__TAURI__ = { core: { invoke: invoke as never } };

    const { result } = renderHook(() => useSkillReferenceProvider());

    // 冷启动：精确查找只能看到「此刻就绪」的候选，目录没读过就是空数组——粘贴 `$名称` 因此按字面保留。
    act(() => {
      expect(result.current.lookup?.()).toEqual([]);
    });
    expect(invoke).not.toHaveBeenCalled();

    // 菜单第一次打开才读目录，读回之后精确查找立刻可用。
    act(() => {
      result.current.onMenuQueryChange?.('');
    });
    await waitFor(() => {
      expect(result.current.lookup?.()).toHaveLength(1);
    });
    expect(result.current.lookup?.().map(chatReferenceMentionToken)).toEqual([
      '$agc-test-skill',
    ]);
  });

  it('内置目录与已启用客户端 Skill 合并后按名字去重，并截断到 8 条', async () => {
    const invoke = vi.fn(async (command: string) => {
      if (command === 'list_agc_skill_catalog') {
        return Array.from({ length: 9 }, (_, index) => ({
          name: `builtin-${index}`,
          description: '内置',
        }));
      }
      if (command === 'list_client_extensions') {
        return [
          {
            name: 'builtin-0',
            extensionType: 'skill',
            enabled: true,
            status: 'enabled',
          },
          {
            name: 'client-skill',
            extensionType: 'skill',
            enabled: true,
            status: 'enabled',
          },
          // 未启用 / 非 Skill 的扩展不进候选。
          {
            name: 'client-off',
            extensionType: 'skill',
            enabled: false,
            status: 'enabled',
          },
          {
            name: 'client-plugin',
            extensionType: 'plugin',
            enabled: true,
            status: 'enabled',
          },
        ];
      }
      throw new Error(`unexpected invoke ${command}`);
    });
    window.__TAURI__ = { core: { invoke: invoke as never } };

    const { result } = renderHook(() => useSkillReferenceProvider());
    act(() => {
      result.current.onMenuQueryChange?.('');
    });
    await waitFor(() => {
      expect(result.current.fuzzyLookup?.('')).toHaveLength(8);
    });
    // 同名客户端项被内置项挡掉，上限只作用于当前查询的命中集合。
    expect(result.current.fuzzyLookup?.('builtin-0')).toHaveLength(1);
    expect(result.current.fuzzyLookup?.('builtin-')).toHaveLength(8);
    expect(result.current.fuzzyLookup?.('client-skill')).toMatchObject([
      { type: 'skill', name: 'client-skill' },
    ]);
    // 未启用与非 Skill 扩展都不是候选。
    expect(result.current.fuzzyLookup?.('client-off')).toEqual([]);
    expect(result.current.fuzzyLookup?.('client-plugin')).toEqual([]);
  });

  it('一次瞬时失败不锁死候选：下一次 `match` 还会重读目录，并在控制台留痕', async () => {
    const warn = vi.spyOn(console, 'warn').mockImplementation(() => undefined);
    const invoke = vi
      .fn(async (command: string) => {
        if (command === 'list_agc_skill_catalog') {
          return [{ name: 'agc-test-skill' }];
        }
        if (command === 'list_client_extensions') return [];
        throw new Error(`unexpected invoke ${command}`);
      })
      .mockRejectedValueOnce(new Error('transient'));
    window.__TAURI__ = { core: { invoke: invoke as never } };

    const { result } = renderHook(() => useSkillReferenceProvider());
    act(() => {
      result.current.onMenuQueryChange?.('');
    });
    // 一次触发读两份目录：内置 Skill 与客户端扩展。
    await waitFor(() => {
      expect(invoke).toHaveBeenCalledTimes(2);
    });
    act(() => {
      result.current.onMenuQueryChange?.('a');
    });
    await waitFor(() => {
      expect(result.current.fuzzyLookup?.('')).toHaveLength(1);
    });
    expect(invoke).toHaveBeenCalledTimes(4);
    // 读取失败不能静默：控制台要留下可排障的一条。
    expect(warn).toHaveBeenCalledWith(
      '[skill-reference] Skill 目录读取失败，下次触发重试',
      expect.any(Error),
    );
  });

  it('`toReference` / `refresh` / `mentionToken` 只认 Skill', async () => {
    const invoke = vi.fn(async () => []);
    window.__TAURI__ = { core: { invoke: invoke as never } };
    const { result } = renderHook(() => useSkillReferenceProvider());

    expect(
      result.current.toReference({ type: 'agc_skill_reference', name: 'demo' }),
    ).toEqual({ type: 'skill', name: 'demo' });
    expect(
      result.current.toReference({
        type: 'agc_resource_reference',
        resourceId: 'asset-hero',
      }),
    ).toBe(null);
    const reference: ChatReference = { type: 'skill', name: 'demo' };
    expect(result.current.refresh(reference)).toBe(reference);
    expect(result.current.refresh({ type: 'resource' } as ChatReference)).toBe(
      null,
    );
    expect(
      result.current.mentionToken({
        type: 'agc_skill_reference',
        name: 'demo',
      }),
    ).toBe('$demo');
    expect(
      result.current.mentionToken({ type: 'input_text', text: '$demo' }),
    ).toBe(null);
  });
});