import { api } from './api';

export interface RootProject {
  id: string;
  name: string;
  description: string;
  createdAt: string;
}

export interface RootVersion {
  id: string;
  productId?: string;
  projectId?: string | null;
  name: string;
  status?: string;
  releaseDate: string | null;
  createdAt: string;
  currentStage?: string | null;
  startDate?: string | null;
  expectedReleaseDate?: string | null;
  members?: unknown[];
  progress?: unknown[];
  priority?: string;
  links?: unknown;
}

export interface RootProduct {
  id: string;
  name: string;
  description: string;
  createdAt: string;
  updatedAt: string;
  projects: RootProject[];
  versions: RootVersion[];
  _count?: { requirements: number; projects: number; versions?: number };
}

export async function createProductRoot(data: { name: string; description?: string }): Promise<RootProduct> {
  const product = await api.post<Omit<RootProduct, 'projects' | 'versions'>>('/products', data);
  return normalizeProductRoot({ ...product, projects: [], versions: [] });
}

export async function updateProductRoot(
  productId: string,
  data: { name?: string; description?: string },
): Promise<Partial<RootProduct>> {
  return api.patch<Partial<RootProduct>>(`/products/${productId}`, data);
}

export async function deleteProductRoot(productId: string): Promise<void> {
  await api.delete(`/products/${productId}`);
}

export async function createProjectByProductId(
  productId: string,
  data: { name: string; description?: string },
): Promise<RootProject> {
  return api.post<RootProject>(`/products/${productId}/projects`, data);
}

export async function updateProjectByProductId(
  productId: string,
  projectId: string,
  data: { name?: string; description?: string },
): Promise<RootProject> {
  return api.patch<RootProject>(`/products/${productId}/projects/${projectId}`, data);
}

export async function deleteProjectByProductId(productId: string, projectId: string): Promise<void> {
  await api.delete(`/products/${productId}/projects/${projectId}`);
}

export async function createVersionByProductId(
  productId: string,
  data: { name: string; status?: string; projectId?: string },
): Promise<RootVersion> {
  return normalizeVersionRoot(await api.post<RootVersion>(`/products/${productId}/versions`, data));
}

export async function updateVersionByProductId(
  productId: string,
  versionId: string,
  data: Record<string, unknown>,
): Promise<RootVersion> {
  return normalizeVersionRoot(await api.patch<RootVersion>(`/products/${productId}/versions/${versionId}`, data));
}

export async function deleteVersionByProductId(productId: string, versionId: string): Promise<void> {
  await api.delete(`/products/${productId}/versions/${versionId}`);
}

function normalizeProductRoot(product: RootProduct): RootProduct {
  return {
    ...product,
    projects: product.projects ?? [],
    versions: (product.versions ?? []).map(normalizeVersionRoot),
    _count: product._count ?? { requirements: 0, projects: product.projects?.length ?? 0, versions: product.versions?.length ?? 0 },
  };
}

function normalizeVersionRoot(version: RootVersion): RootVersion {
  return {
    ...version,
    status: version.status ?? 'planned',
    releaseDate: version.releaseDate ?? null,
    members: Array.isArray(version.members) ? version.members : [],
    progress: Array.isArray(version.progress) ? version.progress : [],
    links: version.links && typeof version.links === 'object' ? version.links : {},
  };
}