import { request } from "./http";

export interface PurchaseOrderLine {
  id: number;
  purchase_order_id: number;
  product_id: number | null;
  description: string;
  quantity: number;
  unit_price: number;
  tva_rate: number;
  discount_pct: number;
  total_ht: number;
  created_at: string;
  updated_at: string;
  product?: any;
}

export interface PurchaseOrder {
  id: number;
  fournisseur_id: number;
  po_number: string;
  status: 'brouillon' | 'confirmee' | 'livree' | 'facturee' | 'annulee';
  order_date: string;
  expected_date: string | null;
  currency: string;
  total_ht: number;
  total_tva: number;
  total_ttc: number;
  notes: string | null;
  delivery_address: string | null;
  created_at: string;
  updated_at: string;
  fournisseur?: any;
  lines?: PurchaseOrderLine[];
}

export interface PurchaseOrderListResponse {
  data: PurchaseOrder[];
  meta?: {
    current_page: number;
    last_page: number;
    per_page: number;
    total: number;
  };
}

export interface PurchaseOrderResponse {
  data: PurchaseOrder;
}

export interface CreatePurchaseOrderLinePayload {
  product_id?: number | null;
  description: string;
  quantity: number;
  unit_price: number;
  tva_rate?: number;
  discount_pct?: number;
}

export interface CreatePurchaseOrderPayload {
  fournisseur_id: number;
  po_number?: string;
  status?: string;
  order_date?: string;
  expected_date?: string | null;
  currency?: string;
  notes?: string | null;
  delivery_address?: string | null;
  lines?: CreatePurchaseOrderLinePayload[];
}

export interface UpdatePurchaseOrderPayload extends Partial<CreatePurchaseOrderPayload> {
  id: number;
}

export const PurchaseOrderService = {
  async getAllPurchaseOrders(params?: {
    page?: number;
    per_page?: number;
    search?: string;
    status?: string;
    fournisseur_id?: number;
  }): Promise<PurchaseOrderListResponse> {
    const response = await request<PurchaseOrderListResponse>({
      url: "/api/purchase-orders",
      method: "get",
      params,
    });
    return response;
  },

  async getPurchaseOrder(id: number): Promise<PurchaseOrderResponse> {
    const response = await request<PurchaseOrderResponse>({
      url: `/api/purchase-orders/${id}`,
      method: "get",
    });
    return response;
  },

  async createPurchaseOrder(payload: CreatePurchaseOrderPayload): Promise<PurchaseOrderResponse> {
    const response = await request<PurchaseOrderResponse>({
      url: "/api/purchase-orders",
      method: "post",
      data: payload,
    });
    return response;
  },

  async updatePurchaseOrder(payload: UpdatePurchaseOrderPayload): Promise<PurchaseOrderResponse> {
    const { id, ...updateData } = payload;
    const response = await request<PurchaseOrderResponse>({
      url: `/api/purchase-orders/${id}`,
      method: "put",
      data: updateData,
    });
    return response;
  },

  async deletePurchaseOrder(id: number): Promise<{ success: boolean; message: string }> {
    const response = await request<{ success: boolean; message: string }>({
      url: `/api/purchase-orders/${id}`,
      method: "delete",
    });
    return response;
  },

  async getByFournisseur(fournisseurId: number): Promise<PurchaseOrderListResponse> {
    const response = await request<PurchaseOrderListResponse>({
      url: `/api/fournisseurs/${fournisseurId}/purchase-orders`,
      method: "get",
    });
    return response;
  },
};

export default PurchaseOrderService;