import { apiRequest, getAccessToken } from "@/lib/meshkee-api";

export type CatalogEntityType = "product" | "blog" | "portfolio";

export type MeshkeeEntityCategory = {
  id: string;
  name: string;
  nameFa?: string | null;
  parentId: string | null;
  description?: string | null;
  seoMetaTitle?: string | null;
  seoMetaDescription?: string | null;
  sortOrder?: number;
};

export type UpsertCategoryInput = {
  parentId?: string | null;
  name: string;
  nameFa?: string;
  description?: string;
  seoMetaTitle?: string | null;
  seoMetaDescription?: string | null;
};

export type CreateProductInput = {
  title: string;
  nameFa?: string;
  summary?: string;
  descriptionHtml?: string;
  categoryId?: string;
  featuredMediaId?: string;
  galleryMediaIds?: string[];
  tags?: string[];
  seoMetaTitle?: string | null;
  seoMetaDescription?: string | null;
  status?: "draft" | "published" | "archived";
};

export type CreateBlogInput = {
  title: string;
  type: "news" | "article" | "blog";
  abstract?: string;
  mainTextHtml?: string;
  categoryId?: string;
  featuredMediaId?: string;
  tags?: string[];
  seoMetaTitle?: string | null;
  seoMetaDescription?: string | null;
  status?: "draft" | "published" | "archived";
};

export type CreatePortfolioInput = {
  titleFa: string;
  titleEn?: string;
  abstract?: string;
  projectUrl?: string;
  mainTextHtml?: string;
  categoryId?: string;
  featuredMediaId?: string;
  galleryMediaIds?: string[];
  tags?: string[];
  seoMetaTitle?: string | null;
  seoMetaDescription?: string | null;
  status?: "draft" | "published" | "archived";
};

export async function listMeshkeeEntityCategories(
  businessId: string,
  entityType: CatalogEntityType,
) {
  const params = new URLSearchParams({ entityType });
  const data = await apiRequest<{ items: MeshkeeEntityCategory[] }>(
    `/businesses/${businessId}/categories?${params}`,
    { auth: true },
  );
  return (data.items ?? []).map((item) => ({
    ...item,
    id: String(item.id),
    parentId: item.parentId == null ? null : String(item.parentId),
    description: item.description ?? "",
    seoMetaTitle: item.seoMetaTitle ?? "",
    seoMetaDescription: item.seoMetaDescription ?? "",
  }));
}

export function categoryOptionLabel(category: MeshkeeEntityCategory) {
  if (category.nameFa && category.nameFa !== category.name) {
    return `${category.name} / ${category.nameFa}`;
  }
  return category.name || category.nameFa || "Category";
}

export async function createMeshkeeEntityCategory(
  businessId: string,
  entityType: CatalogEntityType,
  body: UpsertCategoryInput,
) {
  return apiRequest(`/businesses/${businessId}/categories`, {
    method: "POST",
    auth: true,
    body: {
      entityType,
      parentId: body.parentId || undefined,
      name: body.name.trim(),
      nameFa: body.nameFa?.trim() || undefined,
      description: body.description?.trim() || undefined,
      seoMetaTitle: body.seoMetaTitle?.trim() || null,
      seoMetaDescription: body.seoMetaDescription?.trim() || null,
    },
  });
}

export async function updateMeshkeeEntityCategory(
  businessId: string,
  categoryId: string,
  body: UpsertCategoryInput,
) {
  return apiRequest(`/businesses/${businessId}/categories/${categoryId}`, {
    method: "PATCH",
    auth: true,
    body: {
      parentId: body.parentId === undefined ? undefined : body.parentId || null,
      name: body.name.trim(),
      nameFa: body.nameFa?.trim() || null,
      description: body.description?.trim() || null,
      seoMetaTitle: body.seoMetaTitle?.trim() || null,
      seoMetaDescription: body.seoMetaDescription?.trim() || null,
    },
  });
}

export async function deleteMeshkeeEntityCategory(
  businessId: string,
  categoryId: string,
) {
  return apiRequest<{ deletedIds?: string[] }>(
    `/businesses/${businessId}/categories/${categoryId}`,
    {
      method: "DELETE",
      auth: true,
    },
  );
}

export async function uploadMeshkeeMediaFile(businessId: string, file: File) {
  const token = getAccessToken();
  const form = new FormData();
  form.append("files", file);
  const base =
    process.env.NEXT_PUBLIC_MESHKEE_API_URL?.replace(/\/$/, "") ||
    "http://localhost:3010/api/v1";

  const response = await fetch(`${base}/businesses/${businessId}/media`, {
    method: "POST",
    headers: token ? { Authorization: `Bearer ${token}` } : undefined,
    body: form,
  });
  const payload = await response.json().catch(() => null);
  if (!response.ok) {
    const message =
      typeof payload?.message === "string"
        ? payload.message
        : Array.isArray(payload?.message)
          ? payload.message.join(", ")
          : `Upload failed (${response.status})`;
    throw new Error(message);
  }
  const item = Array.isArray(payload?.items) ? payload.items[0] : payload;
  return {
    id: String(item.id),
    publicUrl: String(item.publicUrl ?? item.url ?? ""),
  };
}

export async function createMeshkeeProduct(
  businessId: string,
  body: CreateProductInput,
) {
  return apiRequest(`/businesses/${businessId}/products`, {
    method: "POST",
    auth: true,
    body: { status: "published", ...body },
  });
}

export async function createMeshkeeBlog(
  businessId: string,
  body: CreateBlogInput,
) {
  return apiRequest(`/businesses/${businessId}/blogs`, {
    method: "POST",
    auth: true,
    body: { status: "published", ...body },
  });
}

export async function createMeshkeePortfolio(
  businessId: string,
  body: CreatePortfolioInput,
) {
  return apiRequest(`/businesses/${businessId}/portfolios`, {
    method: "POST",
    auth: true,
    body: { status: "published", ...body },
  });
}