import { ApiClientError, createApiClient } from "@geo/http-client";
import type {
  ApiEnvelope,
  ArticleDetail,
  ArticleImageUploadResponse,
  ArticleListParams,
  ArticleListResponse,
  CreateArticleRequest,
  ArticleVersion,
  AuthTokens,
  Brand,
  BrandLibrarySummary,
  BrandRequest,
  Competitor,
  CompetitorRequest,
  CreatePluginSessionRequest,
  CreatePluginSessionResponse,
  CreatePublishJobRequest,
  CreatePublishJobResponse,
  CreatePublishBatchRequest,
  CreatePublishBatchResponse,
  GenerateFromRuleRequest,
  GenerateFromRuleResponse,
  InstantTaskListParams,
  InstantTaskListResponse,
  JsonValue,
  KnowledgeGroup,
  KnowledgeGroupRequest,
  KnowledgeItem,
  KnowledgeItemDetail,
  KnowledgeTextItemRequest,
  KnowledgeURLItemRequest,
  KolAssistRequest,
  KolAssistStreamEvent,
  KolAssistSubmitResponse,
  KolAssistTask,
  KolPackageSummary,
  KolPackageDetail,
  PublishKolPromptRequest,
  KolSubscription,
  KolSubscriptionPromptCard,
  KolProfile,
  KolPromptDetail,
  KolSubscriptionPromptSchema,
  KolGenerateRequest,
  KolGenerateResponse,
  KolDashboardOverview,
  KolDashboardPackageStat,
  KolDashboardTrendPoint,
  Keyword,
  KeywordRequest,
  KolWorkspaceCard,
  LoginRequest,
  LoginResponse,
  MediaPlatform,
  MonitoringCollectNowResponse,
  MonitoringDashboardCompositeResponse,
  MonitoringQuestionDetailResponse,
  PlatformAccount,
  PublishRecord,
  RegisterPluginInstallationRequest,
  RegisterPluginInstallationResponse,
  PromptRule,
  PromptRuleGroup,
  PromptRuleGroupRequest,
  PromptRuleListParams,
  PromptRuleListResponse,
  PromptRuleRequest,
  PromptRuleSimple,
  PromptRuleStatusRequest,
  QuotaSummary,
  Question,
  QuestionRequest,
  RecentArticle,
  RefreshResponse,
  ScheduleTask,
  ScheduleTaskListParams,
  ScheduleTaskListResponse,
  ScheduleTaskRequest,
  ScheduleTaskStatusRequest,
  TemplateDetail,
  TemplateAnalyzeTaskRequest,
  TemplateAnalyzeTaskResultResponse,
  TemplateAssistTaskCreateResponse,
  TemplateOutlineTaskRequest,
  TemplateOutlineTaskResultResponse,
  TemplateSaveDraftRequest,
  TemplateSaveDraftResponse,
  TemplateTitleTaskRequest,
  TemplateTitleTaskResultResponse,
  TemplateGenerateRequest,
  TemplateGenerateResponse,
  TemplateListItem,
  TemplateCard,
  ImageFolder,
  ImageAssetItem,
  ImageAssetListResponse,
  ImageUploadResponse,
  ImageReferenceDetail,
  FolderDeletePreview,
  ImageStorageUsage,
  ImageUpdateRequest,
  UpdateQuestionRequest,
  UpdateArticleRequest,
  CreateKolPackageRequest,
  CreateKolPromptRequest,
  UpdateKolPackageRequest,
  UpdateKolPromptRequest,
  DesktopAccountInfo,
  UserInfo,
  WorkspaceOverview,
} from "@geo/shared-types";

import {
  clearStoredSession,
  getStoredAccessToken,
  getStoredRefreshToken,
  setStoredTokens,
} from "./session";
import {
  convertImageFileToWebp,
  markImageUploadRequestFailed,
  markImageUploadRequestFinished,
  markImageUploadRequestStarted,
} from "./image-webp";

const baseURL = import.meta.env.VITE_API_BASE_URL ?? "";
const generationStreamEnabled = import.meta.env.VITE_GENERATION_STREAM_ENABLED === "true";

const publicClient = createApiClient({ baseURL });

export function getApiBaseURL(): string {
  if (baseURL) {
    return baseURL;
  }
  if (typeof window !== "undefined") {
    return window.location.origin;
  }
  return "";
}

export function resolveApiURL(value?: string | null): string {
  const trimmed = String(value ?? "").trim();
  if (!trimmed) {
    return "";
  }
  if (/^https?:\/\//i.test(trimmed)) {
    return trimmed;
  }
  if (/^\/\//.test(trimmed)) {
    return `https:${trimmed}`;
  }
  const apiBaseURL = getApiBaseURL();
  if (!apiBaseURL) {
    return trimmed;
  }
  return new URL(trimmed, apiBaseURL.endsWith("/") ? apiBaseURL : `${apiBaseURL}/`).toString();
}

export const apiClient = createApiClient({
  baseURL,
  auth: {
    getAccessToken: getStoredAccessToken,
    getRefreshToken: getStoredRefreshToken,
    setTokens: setStoredTokens,
    clearTokens: clearStoredSession,
    async refresh(refreshToken: string): Promise<AuthTokens> {
      const data = await publicClient.post<RefreshResponse, { refresh_token: string }>(
        "/api/auth/refresh",
        { refresh_token: refreshToken },
      );

      return {
        accessToken: data.access_token,
        refreshToken: data.refresh_token,
      };
    },
  },
});

export const authApi = {
  login(payload: LoginRequest) {
    return publicClient.post<LoginResponse, LoginRequest>("/api/auth/login", payload);
  },
  me() {
    return apiClient.get<UserInfo>("/api/auth/me");
  },
  logout() {
    return apiClient.post<null>("/api/auth/logout");
  },
};

export const workspaceApi = {
  overview() {
    return apiClient.get<WorkspaceOverview>("/api/tenant/workspace/overview");
  },
  recentArticles() {
    return apiClient.get<RecentArticle[]>("/api/tenant/workspace/recent-articles");
  },
  quotaSummary() {
    return apiClient.get<QuotaSummary>("/api/tenant/workspace/quota-summary");
  },
  templateCards() {
    return apiClient.get<TemplateCard[]>("/api/tenant/workspace/template-cards");
  },
  kolCards() {
    return apiClient.get<KolWorkspaceCard[]>("/api/tenant/workspace/kol-cards");
  },
};

export const templatesApi = {
  list() {
    return apiClient.get<TemplateListItem[]>("/api/tenant/templates");
  },
  detail(id: number) {
    return apiClient.get<TemplateDetail>(`/api/tenant/templates/${id}`);
  },
  createAnalyzeTask(id: number, payload: TemplateAnalyzeTaskRequest) {
    return apiClient.post<TemplateAssistTaskCreateResponse, TemplateAnalyzeTaskRequest>(
      `/api/tenant/templates/${id}/analyze-tasks`,
      payload,
    );
  },
  getAnalyzeTaskResult(id: number, taskId: string) {
    return apiClient.get<TemplateAnalyzeTaskResultResponse>(
      `/api/tenant/templates/${id}/analyze_task_result`,
      { params: { task_id: taskId } },
    );
  },
  createTitleTask(id: number, payload: TemplateTitleTaskRequest) {
    return apiClient.post<TemplateAssistTaskCreateResponse, TemplateTitleTaskRequest>(
      `/api/tenant/templates/${id}/title-tasks`,
      payload,
    );
  },
  getTitleTaskResult(id: number, taskId: string) {
    return apiClient.get<TemplateTitleTaskResultResponse>(
      `/api/tenant/templates/${id}/gen_title_task_result`,
      { params: { task_id: taskId } },
    );
  },
  createOutlineTask(id: number, payload: TemplateOutlineTaskRequest) {
    return apiClient.post<TemplateAssistTaskCreateResponse, TemplateOutlineTaskRequest>(
      `/api/tenant/templates/${id}/outline-tasks`,
      payload,
    );
  },
  getOutlineTaskResult(id: number, taskId: string) {
    return apiClient.get<TemplateOutlineTaskResultResponse>(
      `/api/tenant/templates/${id}/gen_outline_task_result`,
      { params: { task_id: taskId } },
    );
  },
  createAssistTask(id: number, payload: TemplateAnalyzeTaskRequest) {
    return this.createAnalyzeTask(id, payload);
  },
  getAssistTask(id: number, taskId: string) {
    return this.getAnalyzeTaskResult(id, taskId);
  },
  generate(id: number, payload: TemplateGenerateRequest) {
    return apiClient.post<TemplateGenerateResponse, TemplateGenerateRequest>(
      `/api/tenant/templates/${id}/generate`,
      payload,
    );
  },
  saveDraft(id: number, payload: TemplateSaveDraftRequest) {
    return apiClient.post<TemplateSaveDraftResponse, TemplateSaveDraftRequest>(
      `/api/tenant/templates/${id}/drafts`,
      payload,
    );
  },
};

export const kolManageApi = {
  profile() {
    return apiClient.get<KolProfile>("/api/tenant/kol/manage/profile");
  },
  updateProfile(body: {
    display_name: string;
    bio?: string | null;
    avatar_url?: string | null;
  }) {
    return apiClient.put<KolProfile, typeof body>(
      "/api/tenant/kol/manage/profile",
      body,
    );
  },
  async uploadAvatar(file: File) {
    const normalizedFile = await convertImageFileToWebp(file);
    const progressToken = markImageUploadRequestStarted(normalizedFile.name);

    try {
      const formData = new FormData();
      formData.append("file", normalizedFile, normalizedFile.name);

      const response = await apiClient.raw.post<ApiEnvelope<{
        url: string;
        object_key: string;
        content_type: string;
        size_bytes: number;
      }>>("/api/tenant/kol/manage/profile/avatar", formData);

      markImageUploadRequestFinished(progressToken);
      return response.data.data;
    } catch (error) {
      markImageUploadRequestFailed(progressToken);
      throw error;
    }
  },
  listPackages() {
    return apiClient.get<KolPackageSummary[]>("/api/tenant/kol/manage/packages");
  },
  createPackage(body: CreateKolPackageRequest) {
    return apiClient.post<KolPackageSummary, CreateKolPackageRequest>(
      "/api/tenant/kol/manage/packages",
      body,
    );
  },
  updatePackage(id: number, body: UpdateKolPackageRequest) {
    return apiClient.put<KolPackageSummary, UpdateKolPackageRequest>(
      `/api/tenant/kol/manage/packages/${id}`,
      body,
    );
  },
  publishPackage(id: number) {
    return apiClient.put<KolPackageSummary, Record<string, never>>(
      `/api/tenant/kol/manage/packages/${id}/publish`,
      {},
    );
  },
  archivePackage(id: number) {
    return apiClient.put<KolPackageSummary, Record<string, never>>(
      `/api/tenant/kol/manage/packages/${id}/archive`,
      {},
    );
  },
  deletePackage(id: number) {
    return apiClient.remove<null>(`/api/tenant/kol/manage/packages/${id}`);
  },
  listPrompts(packageId: number) {
    return apiClient.get<KolPromptDetail[]>(`/api/tenant/kol/manage/packages/${packageId}/prompts`);
  },
  createPrompt(packageId: number, body: CreateKolPromptRequest) {
    return apiClient.post<KolPromptDetail, CreateKolPromptRequest>(
      `/api/tenant/kol/manage/packages/${packageId}/prompts`,
      body,
    );
  },
  getPrompt(id: number) {
    return apiClient.get<KolPromptDetail>(`/api/tenant/kol/manage/prompts/${id}`);
  },
  updatePromptMetadata(id: number, body: UpdateKolPromptRequest) {
    return apiClient.put<KolPromptDetail, UpdateKolPromptRequest>(
      `/api/tenant/kol/manage/prompts/${id}`,
      body,
    );
  },
  deletePrompt(id: number) {
    return apiClient.remove<null>(`/api/tenant/kol/manage/prompts/${id}`);
  },
  savePrompt(promptId: number, body: PublishKolPromptRequest) {
    return apiClient.post<KolPromptDetail, PublishKolPromptRequest>(
      `/api/tenant/kol/manage/prompts/${promptId}/save`,
      body,
    );
  },
  publishPrompt(promptId: number, body: PublishKolPromptRequest) {
    return apiClient.post<KolPromptDetail, PublishKolPromptRequest>(
      `/api/tenant/kol/manage/prompts/${promptId}/publish`,
      body,
    );
  },
  activatePrompt(promptId: number) {
    return apiClient.put<KolPromptDetail, Record<string, never>>(
      `/api/tenant/kol/manage/prompts/${promptId}/activate`,
      {},
    );
  },
  archivePrompt(promptId: number) {
    return apiClient.put<KolPromptDetail, Record<string, never>>(
      `/api/tenant/kol/manage/prompts/${promptId}/archive`,
      {},
    );
  },
  submitAssist(body: KolAssistRequest) {
    return apiClient.post<KolAssistSubmitResponse, KolAssistRequest>(
      "/api/tenant/kol/manage/assist",
      body,
    );
  },
  streamAssist(
    body: KolAssistRequest,
    handlers: {
      onEvent: (event: KolAssistStreamEvent) => void;
      onClose?: () => void;
    },
    signal: AbortSignal,
  ) {
    return subscribeSSE<KolAssistStreamEvent>(
      "/api/tenant/kol/manage/assist/stream",
      {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(body),
      },
      handlers,
      signal,
    );
  },
  getAssist(id: string) {
    return apiClient.get<KolAssistTask>(`/api/tenant/kol/manage/assist/${id}`);
  },
};

export const kolMarketplaceApi = {
  list(params: { industry?: string; keyword?: string; limit?: number; offset?: number }) {
    return apiClient.get<KolPackageSummary[]>("/api/tenant/kol/marketplace/packages", { params });
  },
  detail(id: number) {
    return apiClient.get<KolPackageDetail>(`/api/tenant/kol/marketplace/packages/${id}`);
  },
  subscribe(id: number) {
    return apiClient.post<KolSubscription, Record<string, never>>(
      `/api/tenant/kol/marketplace/packages/${id}/subscribe`,
      {},
    );
  },
  mySubscriptions() {
    return apiClient.get<KolSubscription[]>("/api/tenant/kol/subscriptions");
  },
  mySubscriptionPrompts() {
    return apiClient.get<KolSubscriptionPromptCard[]>("/api/tenant/kol/subscription-prompts");
  },
};

export const kolGenerateApi = {
  schema(id: number | string) {
    return apiClient.get<KolSubscriptionPromptSchema>(`/api/tenant/kol/subscription-prompts/${id}/schema`);
  },
  submit(id: number | string, body: KolGenerateRequest) {
    return apiClient.post<KolGenerateResponse, KolGenerateRequest>(
      `/api/tenant/kol/subscription-prompts/${id}/generate`,
      body,
    );
  },
};

export const kolDashboardApi = {
  overview() {
    return apiClient.get<KolDashboardOverview>("/api/tenant/kol/dashboard/overview");
  },
  packages() {
    return apiClient.get<KolDashboardPackageStat[]>("/api/tenant/kol/dashboard/packages");
  },
  trend(periodDays: number) {
    return apiClient.get<KolDashboardTrendPoint[]>("/api/tenant/kol/dashboard/trend", {
      params: { period_days: periodDays },
    });
  },
};

export const articlesApi = {
  list(params: ArticleListParams) {
    return apiClient.get<ArticleListResponse>("/api/tenant/articles", { params });
  },
  create(payload: CreateArticleRequest = {}) {
    return apiClient.post<ArticleDetail, CreateArticleRequest>("/api/tenant/articles", payload);
  },
  detail(id: number) {
    return apiClient.get<ArticleDetail>(`/api/tenant/articles/${id}`);
  },
  update(id: number, payload: UpdateArticleRequest) {
    return apiClient.put<ArticleDetail, UpdateArticleRequest>(`/api/tenant/articles/${id}`, payload);
  },
  async uploadImage(id: number, file: File) {
    const normalizedFile = await convertImageFileToWebp(file);
    const progressToken = markImageUploadRequestStarted(normalizedFile.name);

    try {
      const formData = new FormData();
      formData.append("file", normalizedFile, normalizedFile.name);

      const response = await apiClient.raw.post<ApiEnvelope<ArticleImageUploadResponse>>(
        `/api/tenant/articles/${id}/images`,
        formData,
      );

      markImageUploadRequestFinished(progressToken);
      return {
        ...response.data.data,
        url: resolveApiURL(response.data.data.url),
      };
    } catch (error) {
      markImageUploadRequestFailed(progressToken);
      throw error;
    }
  },
  versions(id: number) {
    return apiClient.get<ArticleVersion[]>(`/api/tenant/articles/${id}/versions`);
  },
  publishBatch(id: number, payload: CreatePublishBatchRequest) {
    return apiClient.post<CreatePublishBatchResponse, CreatePublishBatchRequest>(
      `/api/tenant/articles/${id}/publish-batches`,
      payload,
    );
  },
  publishRecords(id: number) {
    return apiClient.get<PublishRecord[]>(`/api/tenant/articles/${id}/publish-records`);
  },
  remove(id: number) {
    return apiClient.remove<null>(`/api/tenant/articles/${id}`);
  },
};

export const knowledgeApi = {
  listGroups() {
    return apiClient.get<KnowledgeGroup[]>("/api/tenant/knowledge/groups");
  },
  createGroup(payload: KnowledgeGroupRequest) {
    return apiClient.post<KnowledgeGroup, KnowledgeGroupRequest>("/api/tenant/knowledge/groups", payload);
  },
  updateGroup(id: number, payload: KnowledgeGroupRequest) {
    return apiClient.put<null, KnowledgeGroupRequest>(`/api/tenant/knowledge/groups/${id}`, payload);
  },
  removeGroup(id: number) {
    return apiClient.remove<null>(`/api/tenant/knowledge/groups/${id}`);
  },
  listItems(groupId?: number) {
    return apiClient.get<KnowledgeItem[]>("/api/tenant/knowledge/items", {
      params: groupId ? { group_id: groupId } : undefined,
    });
  },
  detail(id: number) {
    return apiClient.get<KnowledgeItemDetail>(`/api/tenant/knowledge/items/${id}`);
  },
  createTextItem(payload: KnowledgeTextItemRequest) {
    return apiClient.post<KnowledgeItem, KnowledgeTextItemRequest>(
      "/api/tenant/knowledge/items/text",
      payload,
    );
  },
  createURLItem(payload: KnowledgeURLItemRequest) {
    return apiClient.post<KnowledgeItem, KnowledgeURLItemRequest>(
      "/api/tenant/knowledge/items/url",
      payload,
    );
  },
  async createFileItem(payload: { group_id: number; name?: string; file: File }) {
    const form = new FormData();
    form.set("group_id", String(payload.group_id));
    if (payload.name?.trim()) {
      form.set("name", payload.name.trim());
    }
    form.set("file", payload.file);
    const { data } = await apiClient.raw.post("/api/tenant/knowledge/items/file", form);
    return data.data as KnowledgeItem;
  },
  removeItem(id: number) {
    return apiClient.remove<null>(`/api/tenant/knowledge/items/${id}`);
  },
};

export const imagesApi = {
  listFolders() {
    return apiClient.get<ImageFolder[]>("/api/tenant/images/folders");
  },
  createFolder(name: string) {
    return apiClient.post<ImageFolder, { name: string }>("/api/tenant/images/folders", { name });
  },
  updateFolder(id: number, name: string) {
    return apiClient.put<null, { name: string }>(`/api/tenant/images/folders/${id}`, { name });
  },
  folderDeletePreview(id: number) {
    return apiClient.get<FolderDeletePreview>(`/api/tenant/images/folders/${id}/delete-preview`);
  },
  deleteFolder(id: number, force?: boolean) {
    return apiClient.remove<null>(`/api/tenant/images/folders/${id}`, { params: force ? { force: 1 } : undefined });
  },
  list(params?: { folder_id?: number | null; q?: string; page?: number; page_size?: number }) {
    return apiClient.get<ImageAssetListResponse>("/api/tenant/images", { params });
  },
  async upload(file: File, folderId?: number | null) {
    const normalizedFile = await convertImageFileToWebp(file);
    const progressToken = markImageUploadRequestStarted(normalizedFile.name);

    try {
      const formData = new FormData();
      formData.append("file", normalizedFile, normalizedFile.name);
      if (folderId != null) {
        formData.append("folder_id", String(folderId));
      }

      const response = await apiClient.raw.post<ApiEnvelope<ImageUploadResponse>>(
        "/api/tenant/images",
        formData,
      );

      markImageUploadRequestFinished(progressToken);
      return {
        ...response.data.data,
        url: resolveApiURL(response.data.data.url),
      };
    } catch (error) {
      markImageUploadRequestFailed(progressToken);
      throw error;
    }
  },
  update(id: number, payload: ImageUpdateRequest) {
    return apiClient.put<null, ImageUpdateRequest>(`/api/tenant/images/${id}`, payload);
  },
  getReferences(id: number) {
    return apiClient.get<ImageReferenceDetail>(`/api/tenant/images/${id}/references`);
  },
  delete(id: number, force?: boolean) {
    return apiClient.remove<null>(`/api/tenant/images/${id}`, { params: force ? { force: 1 } : undefined });
  },
  storageUsage() {
    return apiClient.get<ImageStorageUsage>("/api/tenant/images/storage-usage");
  },
};

export interface ArticleGenerationStreamEvent {
  type: string;
  article_id: number;
  task_id?: number;
  title?: string;
  status?: string;
  delta?: string;
  content?: string;
  error?: string;
  done?: boolean;
  updated_at?: string;
}

export interface ArticleSelectionOptimizeRequest {
  title: string;
  markdown_content: string;
  selected_text: string;
  instruction: string;
}

export interface ArticleSelectionOptimizeStreamEvent {
  type: string;
  article_id: number;
  status?: string;
  delta?: string;
  content?: string;
  error?: string;
  model?: string;
  done?: boolean;
}

export function isGenerationStreamEnabled(): boolean {
  return generationStreamEnabled;
}

export async function subscribeArticleGeneration(
  articleId: number,
  handlers: {
    onEvent: (event: ArticleGenerationStreamEvent) => void;
    onClose?: () => void;
  },
  signal: AbortSignal,
): Promise<void> {
  return subscribeSSE<ArticleGenerationStreamEvent>(
    `/api/tenant/articles/${articleId}/stream`,
    {
      method: "GET",
    },
    handlers,
    signal,
  );
}

export async function streamArticleSelectionOptimize(
  articleId: number,
  payload: ArticleSelectionOptimizeRequest,
  handlers: {
    onEvent: (event: ArticleSelectionOptimizeStreamEvent) => void;
    onClose?: () => void;
  },
  signal: AbortSignal,
): Promise<void> {
  return subscribeSSE<ArticleSelectionOptimizeStreamEvent>(
    `/api/tenant/articles/${articleId}/selection-optimize/stream`,
    {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify(payload),
    },
    handlers,
    signal,
  );
}

type SSEEventShape = {
  type: string;
};

async function subscribeSSE<TEvent extends SSEEventShape>(
  path: string,
  init: RequestInit,
  handlers: {
    onEvent: (event: TEvent) => void;
    onClose?: () => void;
  },
  signal: AbortSignal,
): Promise<void> {
  const accessToken = getStoredAccessToken();
  if (!accessToken) {
    throw new Error("missing access token");
  }

  const requestHeaders = new Headers(init.headers);
  requestHeaders.set("Accept", "text/event-stream");
  requestHeaders.set("Authorization", `Bearer ${accessToken}`);

  const response = await fetch(`${baseURL}${path}`, {
    ...init,
    headers: requestHeaders,
    signal,
  });

  if (!response.ok) {
    throw await buildSSERequestError(response);
  }
  if (!response.body) {
    throw new Error("stream response body is empty");
  }

  const reader = response.body.getReader();
  const decoder = new TextDecoder();
  let buffer = "";

  try {
    while (true) {
      const { done, value } = await reader.read();
      if (done) {
        break;
      }

      buffer += decoder.decode(value, { stream: true });
      buffer = consumeSSEBuffer<TEvent>(buffer, handlers.onEvent);
    }

    buffer += decoder.decode();
    consumeSSEBuffer<TEvent>(buffer, handlers.onEvent);
  } finally {
    reader.releaseLock();
    handlers.onClose?.();
  }
}

type SSEErrorEnvelope = {
  code?: number;
  message?: string;
  detail?: string;
  request_id?: string;
};

async function buildSSERequestError(response: Response): Promise<ApiClientError> {
  try {
    const payload = (await response.clone().json()) as SSEErrorEnvelope | null;
    if (payload && typeof payload === "object" && !Array.isArray(payload)) {
      return new ApiClientError({
        message: payload.message ?? "unknown_error",
        code: payload.code,
        status: response.status,
        detail: payload.detail,
        requestId: payload.request_id,
      });
    }
  } catch {
    // Ignore JSON parse errors and fall back to a generic error below.
  }

  let detail: string | undefined;
  try {
    const text = (await response.text()).trim();
    detail = text || undefined;
  } catch {
    detail = undefined;
  }

  return new ApiClientError({
    message: "unknown_error",
    status: response.status,
    detail: detail ?? `stream request failed with status ${response.status}`,
  });
}

export const brandsApi = {
  list() {
    return apiClient.get<Brand[]>("/api/tenant/brands");
  },
  getLibrarySummary() {
    return apiClient.get<BrandLibrarySummary>("/api/tenant/brands/library-summary");
  },
  create(payload: BrandRequest) {
    return apiClient.post<Brand, BrandRequest>("/api/tenant/brands", payload);
  },
  detail(id: number) {
    return apiClient.get<Brand>(`/api/tenant/brands/${id}`);
  },
  update(id: number, payload: BrandRequest) {
    return apiClient.put<null, BrandRequest>(`/api/tenant/brands/${id}`, payload);
  },
  remove(id: number) {
    return apiClient.remove<null>(`/api/tenant/brands/${id}`);
  },
  listKeywords(brandId: number) {
    return apiClient.get<Keyword[]>(`/api/tenant/brands/${brandId}/keywords`);
  },
  createKeyword(brandId: number, payload: KeywordRequest) {
    return apiClient.post<Keyword, KeywordRequest>(
      `/api/tenant/brands/${brandId}/keywords`,
      payload,
    );
  },
  updateKeyword(brandId: number, keywordId: number, payload: KeywordRequest) {
    return apiClient.put<null, KeywordRequest>(
      `/api/tenant/brands/${brandId}/keywords/${keywordId}`,
      payload,
    );
  },
  removeKeyword(brandId: number, keywordId: number) {
    return apiClient.remove<null>(`/api/tenant/brands/${brandId}/keywords/${keywordId}`);
  },
  listQuestions(brandId: number, keywordId?: number | null) {
    return apiClient.get<Question[]>(`/api/tenant/brands/${brandId}/questions`, {
      params: keywordId ? { keyword_id: keywordId } : undefined,
    });
  },
  createQuestion(brandId: number, payload: QuestionRequest) {
    return apiClient.post<Question, QuestionRequest>(
      `/api/tenant/brands/${brandId}/questions`,
      payload,
    );
  },
  updateQuestion(brandId: number, questionId: number, payload: UpdateQuestionRequest) {
    return apiClient.put<null, UpdateQuestionRequest>(
      `/api/tenant/brands/${brandId}/questions/${questionId}`,
      payload,
    );
  },
  removeQuestion(brandId: number, questionId: number) {
    return apiClient.remove<null>(`/api/tenant/brands/${brandId}/questions/${questionId}`);
  },
  listCompetitors(brandId: number) {
    return apiClient.get<Competitor[]>(`/api/tenant/brands/${brandId}/competitors`);
  },
  createCompetitor(brandId: number, payload: CompetitorRequest) {
    return apiClient.post<Competitor, CompetitorRequest>(
      `/api/tenant/brands/${brandId}/competitors`,
      payload,
    );
  },
  updateCompetitor(brandId: number, competitorId: number, payload: CompetitorRequest) {
    return apiClient.put<null, CompetitorRequest>(
      `/api/tenant/brands/${brandId}/competitors/${competitorId}`,
      payload,
    );
  },
  removeCompetitor(brandId: number, competitorId: number) {
    return apiClient.remove<null>(`/api/tenant/brands/${brandId}/competitors/${competitorId}`);
  },
};

export const mediaApi = {
  platforms() {
    return apiClient.get<MediaPlatform[]>("/api/tenant/media/platforms");
  },
  accounts() {
    return removedMediaApi<PlatformAccount[]>("accounts");
  },
  createPluginSession(payload: CreatePluginSessionRequest) {
    void payload;
    return removedMediaApi<CreatePluginSessionResponse>("create_plugin_session");
  },
  registerPluginInstallation(payload: RegisterPluginInstallationRequest) {
    void payload;
    return removedMediaApi<RegisterPluginInstallationResponse>("register_plugin_installation");
  },
  unbindAccount(id: number) {
    void id;
    return removedMediaApi<null>("unbind_account");
  },
};

export const tenantAccountsApi = {
  list() {
    return apiClient.get<DesktopAccountInfo[]>("/api/tenant/accounts");
  },
  requestDelete(id: string, options?: { undo?: boolean }) {
    const query = options?.undo ? "?undo=true" : "";
    return apiClient.post<DesktopAccountInfo>(`/api/tenant/accounts/${encodeURIComponent(id)}/request-delete${query}`);
  },
};

export const publishJobsApi = {
  create(payload: CreatePublishJobRequest) {
    return apiClient.post<CreatePublishJobResponse, CreatePublishJobRequest>("/api/tenant/publish-jobs", payload);
  },
};

function removedMediaApi<T>(action: string): Promise<T> {
  return Promise.reject(new ApiClientError({
    message: "desktop_media_api_removed",
    detail: `legacy media API action "${action}" has been removed; use desktop client accounts and publish jobs instead`,
  }));
}

export const monitoringApi = {
  dashboardComposite(params: {
    brand_id?: number;
    keyword_id?: number | null;
    days?: number;
    business_date?: string;
    ai_platform_id?: string;
  }) {
    return apiClient.get<MonitoringDashboardCompositeResponse>("/api/tenant/monitoring/dashboard/composite", {
      params,
    });
  },
  questionDetail(
    brandId: number,
    questionId: number,
    params: {
      date_from?: string;
      date_to?: string;
      question_hash?: string;
      ai_platform_id?: string;
    },
  ) {
    return apiClient.get<MonitoringQuestionDetailResponse>(
      `/api/tenant/monitoring/brands/${brandId}/questions/${questionId}/detail`,
      { params },
    );
  },
  collectNow(brandId: number, payload?: { keyword_id?: number | null }) {
    return apiClient.post<MonitoringCollectNowResponse, { keyword_id?: number | null }>(
      `/api/tenant/monitoring/brands/${brandId}/collect-now`,
      payload ?? {},
    );
  },
};

export const promptRulesApi = {
  list(params?: PromptRuleListParams) {
    return apiClient.get<PromptRuleListResponse>("/api/tenant/prompt-rules", { params });
  },
  listSimple() {
    return apiClient.get<PromptRuleSimple[]>("/api/tenant/prompt-rules/simple");
  },
  detail(id: number) {
    return apiClient.get<PromptRule>(`/api/tenant/prompt-rules/${id}`);
  },
  create(payload: PromptRuleRequest) {
    return apiClient.post<PromptRule, PromptRuleRequest>("/api/tenant/prompt-rules", payload);
  },
  update(id: number, payload: PromptRuleRequest) {
    return apiClient.put<null, PromptRuleRequest>(`/api/tenant/prompt-rules/${id}`, payload);
  },
  remove(id: number) {
    return apiClient.remove<null>(`/api/tenant/prompt-rules/${id}`);
  },
  toggleStatus(id: number, payload: PromptRuleStatusRequest) {
    return apiClient.put<null, PromptRuleStatusRequest>(`/api/tenant/prompt-rules/${id}/status`, payload);
  },
  listGroups() {
    return apiClient.get<PromptRuleGroup[]>("/api/tenant/prompt-rules/groups");
  },
  createGroup(payload: PromptRuleGroupRequest) {
    return apiClient.post<PromptRuleGroup, PromptRuleGroupRequest>("/api/tenant/prompt-rules/groups", payload);
  },
  updateGroup(id: number, payload: PromptRuleGroupRequest) {
    return apiClient.put<null, PromptRuleGroupRequest>(`/api/tenant/prompt-rules/groups/${id}`, payload);
  },
  removeGroup(id: number) {
    return apiClient.remove<null>(`/api/tenant/prompt-rules/groups/${id}`);
  },
};

export const schedulesApi = {
  list(params?: ScheduleTaskListParams) {
    return apiClient.get<ScheduleTaskListResponse>("/api/tenant/schedules", { params });
  },
  detail(id: number) {
    return apiClient.get<ScheduleTask>(`/api/tenant/schedules/${id}`);
  },
  create(payload: ScheduleTaskRequest) {
    return apiClient.post<ScheduleTask, ScheduleTaskRequest>("/api/tenant/schedules", payload);
  },
  update(id: number, payload: ScheduleTaskRequest) {
    return apiClient.put<null, ScheduleTaskRequest>(`/api/tenant/schedules/${id}`, payload);
  },
  remove(id: number) {
    return apiClient.remove<null>(`/api/tenant/schedules/${id}`);
  },
  toggleStatus(id: number, payload: ScheduleTaskStatusRequest) {
    return apiClient.put<null, ScheduleTaskStatusRequest>(`/api/tenant/schedules/${id}/status`, payload);
  },
};

export const generateApi = {
  fromRule(payload: GenerateFromRuleRequest) {
    return apiClient.post<GenerateFromRuleResponse, GenerateFromRuleRequest>(
      "/api/tenant/articles/generate-from-rule",
      payload,
    );
  },
};

export const instantTasksApi = {
  list(params?: InstantTaskListParams) {
    return apiClient.get<InstantTaskListResponse>("/api/tenant/instant-tasks", { params });
  },
};

export function normalizeInputParams(
  payload: Record<string, JsonValue>,
  articleId?: number,
  wizardState?: Record<string, JsonValue>,
): TemplateGenerateRequest {
  return {
    article_id: articleId,
    input_params: payload,
    wizard_state: wizardState,
  };
}

function consumeSSEBuffer<TEvent extends SSEEventShape>(
  buffer: string,
  onEvent: (event: TEvent) => void,
): string {
  let next = buffer;

  for (;;) {
    const delimiterIndex = next.indexOf("\n\n");
    if (delimiterIndex === -1) {
      break;
    }

    const rawEvent = next.slice(0, delimiterIndex);
    next = next.slice(delimiterIndex + 2);

    const parsed = parseSSEEvent<TEvent>(rawEvent);
    if (parsed) {
      onEvent(parsed);
    }
  }

  return next;
}

function parseSSEEvent<TEvent extends SSEEventShape>(raw: string): TEvent | null {
  const lines = raw.split(/\r?\n/);
  let event = "message";
  const dataLines: string[] = [];

  for (const line of lines) {
    if (line.startsWith("event:")) {
      event = line.slice(6).trim();
      continue;
    }
    if (line.startsWith("data:")) {
      dataLines.push(line.slice(5).trimStart());
    }
  }

  if (dataLines.length === 0) {
    return null;
  }

  const data = JSON.parse(dataLines.join("\n")) as Record<string, unknown> | null;
  if (!data || Array.isArray(data)) {
    return null;
  }

  return {
    ...data,
    type: event,
  } as TEvent;
}