import { beforeEach, describe, expect, it, vi } from 'vitest';
import {
  AgentProfileApiError,
  deleteAgentAvatar,
  getAgentProfile,
  getAgentProfileApiErrorMessage,
  putAgentProfile,
  uploadAgentAvatar,
} from '@/lib/agent-profile';

const hostApiFetchMock = vi.hoisted(() => vi.fn());

vi.mock('@/lib/host-api', () => ({
  hostApiFetch: (...args: unknown[]) => hostApiFetchMock(...args),
}));

const profile = {
  display_name: '小泥',
  age: 18,
  gender: 'female' as const,
  share_age_with_agents: true,
  share_gender_with_agents: true,
  analysis_enabled: true,
  completed: true,
  version: 2,
  updated_at: '2026-07-12T00:00:00Z',
};

describe('Agent Profile API client', () => {
  beforeEach(() => {
    hostApiFetchMock.mockReset();
  });

  it('loads the current profile through the authenticated Host API proxy', async () => {
    hostApiFetchMock.mockResolvedValue({ success: true, profile });

    await expect(getAgentProfile('access-token')).resolves.toEqual(profile);
    expect(hostApiFetchMock).toHaveBeenCalledWith('/api/works/user/agent-profile', {
      headers: { 'X-NianCode-Access-Token': 'access-token' },
    });
  });

  it('sends a complete versioned PUT payload', async () => {
    hostApiFetchMock.mockResolvedValue({ success: true, profile });
    const update = {
      display_name: '小泥',
      age: 18,
      gender: 'female' as const,
      share_age_with_agents: true,
      share_gender_with_agents: true,
      analysis_enabled: true,
      version: 1,
    };

    await expect(putAgentProfile('access-token', update)).resolves.toEqual(profile);
    expect(hostApiFetchMock).toHaveBeenCalledWith('/api/works/user/agent-profile', {
      method: 'PUT',
      body: JSON.stringify(update),
      headers: { 'X-NianCode-Access-Token': 'access-token' },
    });
  });

  it('sends a completed local session snapshot alongside the profile', async () => {
    hostApiFetchMock.mockResolvedValue({ success: true, profile });
    const sessionData = {
      project_id: 'prj_1',
      session_id: 'ses_1',
      updated_at: '2026-08-13T10:00:00.000Z',
      messages: [{
        id: 'msg_1',
        role: 'user' as const,
        created_at: '2026-08-13T09:59:00.000Z',
        text: '请帮我解释这个问题。',
      }],
    };

    await expect(putAgentProfile('access-token', {
      display_name: '小泥',
      age: 18,
      gender: 'female',
      share_age_with_agents: true,
      share_gender_with_agents: true,
      analysis_enabled: true,
      version: 2,
      session_data: sessionData,
    })).resolves.toEqual(profile);

    expect(hostApiFetchMock).toHaveBeenCalledWith('/api/works/user/agent-profile', {
      method: 'PUT',
      body: JSON.stringify({
        display_name: '小泥',
        age: 18,
        gender: 'female',
        share_age_with_agents: true,
        share_gender_with_agents: true,
        analysis_enabled: true,
        version: 2,
        session_data: sessionData,
      }),
      headers: { 'X-NianCode-Access-Token': 'access-token' },
    });
  });

  it('uploads a prepared avatar through the authenticated Host API proxy', async () => {
    hostApiFetchMock.mockResolvedValue({ success: true, avatar_url: 'https://cdn.example/avatar.webp' });

    await expect(uploadAgentAvatar('access-token', {
      fileName: 'avatar.webp',
      mimeType: 'image/webp',
      dataBase64: 'QUJD',
    })).resolves.toBe('https://cdn.example/avatar.webp');

    expect(hostApiFetchMock).toHaveBeenCalledWith('/api/works/user/avatar', {
      method: 'POST',
      body: JSON.stringify({
        fileName: 'avatar.webp',
        mimeType: 'image/webp',
        dataBase64: 'QUJD',
      }),
      headers: { 'X-NianCode-Access-Token': 'access-token' },
    });
  });

  it('deletes the current avatar through the authenticated Host API proxy', async () => {
    hostApiFetchMock.mockResolvedValue({ success: true, avatar_url: null });

    await expect(deleteAgentAvatar('access-token')).resolves.toBeNull();

    expect(hostApiFetchMock).toHaveBeenCalledWith('/api/works/user/avatar', {
      method: 'DELETE',
      headers: { 'X-NianCode-Access-Token': 'access-token' },
    });
  });

  it('retains upstream conflict detail for the store to handle', async () => {
    hostApiFetchMock.mockResolvedValue({
      success: false,
      status: 409,
      error: 'Profile version conflict',
      detail: { code: 'agent_profile_version_conflict', current_version: 4 },
    });

    await expect(getAgentProfile('access-token')).rejects.toMatchObject<Partial<AgentProfileApiError>>({
      name: 'AgentProfileApiError',
      status: 409,
      detail: { code: 'agent_profile_version_conflict', current_version: 4 },
      code: 'agent_profile_version_conflict',
    });
  });

  it('retains avatar validation error codes from the Host API proxy', async () => {
    hostApiFetchMock.mockResolvedValue({
      success: false,
      status: 415,
      code: 'avatar_unsupported_type',
      error: 'Unsupported avatar image type',
    });

    await expect(deleteAgentAvatar('access-token')).rejects.toMatchObject<Partial<AgentProfileApiError>>({
      status: 415,
      code: 'avatar_unsupported_type',
    });
  });

  it('keeps a structured service error visible instead of replacing it with generic 503 text', async () => {
    hostApiFetchMock.mockResolvedValue({
      success: false,
      status: 503,
      error: 'Agent Profile database migration is pending',
      detail: {
        code: 'agent_profile_storage_unavailable',
        message: 'Agent Profile database migration is pending',
      },
      code: 'agent_profile_storage_unavailable',
    });

    const error = await getAgentProfile('access-token').catch((value) => value as AgentProfileApiError);
    expect(error).toMatchObject({
      status: 503,
      code: 'agent_profile_storage_unavailable',
      message: 'Agent Profile database migration is pending',
    });
    expect(getAgentProfileApiErrorMessage(error)).toBe('Agent Profile database migration is pending');
  });
});