import { request } from "./http";
import { Client } from "./client";
import type { ClientGroup } from "./clientGroup";

export interface Invoice {
  id: number;
  client_id: number | null;
  group_id: number | null;
  source_quote_id: number | null;
  invoice_number: string;
  status:
    | "brouillon"
    | "emise"
    | "envoyee"
    | "partiellement_payee"
    | "payee"
    | "echue"
    | "annulee"
    | "avoir";
  invoice_date: string;
  due_date: string | null;
  currency: string;
  total_ht: number;
  total_tva: number;
  total_ttc: number;
  e_invoicing_channel_id: number | null;
  e_invoice_status: string | null;
  created_at: string;
  updated_at: string;
  client?: Client;
  group?: ClientGroup;
}

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

export interface InvoiceResponse {
  data: Invoice;
}

export interface InvoiceLine {
  product_id: number | null;
  product_name: string;
  packaging_id?: number | null;
  packages_qty?: number | null;
  units_qty?: number | null;
  description?: string;
  qty_base?: number | null;
  unit_price: number;
  unit_price_per_package?: number | null;
  tva_rate_id?: number | null;
  discount_pct?: number;
  quantity: number;
  tva?: number;
  total_ht?: number;
}

export interface CreateInvoicePayload {
  client_id: number | null;
  group_id?: number | null;
  source_quote_id?: number | null;
  status:
    | "brouillon"
    | "emise"
    | "envoyee"
    | "partiellement_payee"
    | "payee"
    | "echue"
    | "annulee"
    | "avoir";
  invoice_date: string;
  due_date?: string | null;
  currency: string;
  total_ht: number;
  total_tva: number;
  total_ttc: number;
  lines: InvoiceLine[];
}

export interface UpdateInvoicePayload extends Partial<CreateInvoicePayload> {
  id: number;
}

export const InvoiceService = {
  /**
   * Get all invoices with pagination
   */
  async getAllInvoices(params?: {
    page?: number;
    per_page?: number;
    search?: string;
    status?: string;
    client_id?: number;
  }): Promise<InvoiceListResponse> {
    const response = await request<InvoiceListResponse>({
      url: "/api/invoices",
      method: "get",
      params,
    });

    return response;
  },

  /**
   * Get a specific invoice by ID
   */
  async getInvoice(id: number): Promise<InvoiceResponse> {
    const response = await request<InvoiceResponse>({
      url: `/api/invoices/${id}`,
      method: "get",
    });

    return response;
  },

  /**
   * Create a new invoice
   */
  async createInvoice(payload: CreateInvoicePayload): Promise<InvoiceResponse> {
    const response = await request<InvoiceResponse>({
      url: "/api/invoices",
      method: "post",
      data: payload,
    });

    return response;
  },

  /**
   * Create an invoice from a quote
   */
  async createFromQuote(quoteId: number): Promise<InvoiceResponse> {
    const response = await request<InvoiceResponse>({
      url: `/api/invoices/from-quote/${quoteId}`,
      method: "post",
    });

    return response;
  },

  /**
   * Update an existing invoice
   */
  async updateInvoice(payload: UpdateInvoicePayload): Promise<InvoiceResponse> {
    const { id, ...updateData } = payload;

    const response = await request<InvoiceResponse>({
      url: `/api/invoices/${id}`,
      method: "put",
      data: updateData,
    });

    return response;
  },

  /**
   * Delete an invoice
   */
  async deleteInvoice(
    id: number
  ): Promise<{ success: boolean; message: string }> {
    const response = await request<{ success: boolean; message: string }>({
      url: `/api/invoices/${id}`,
      method: "delete",
    });

    return response;
  },
};

export default InvoiceService;