import apiClient from './client';

export interface CreateProposalRequest {
  workOrderNumber: string;
  customerName: string;
  customerAddress: string;
  scopeOfWork: string;
  serviceCategory: string;
  priority: string;
  notes?: string;
}

export interface ProposalListItem {
  id: string;
  proposalNumber: string;
  customerName: string;
  workOrderNumber: string;
  serviceCategory: string;
  priority: string;
  status: string;
  totalBidAmount: number;
  submittedAt: string;
  submittedByName: string | null;
  assignedAdminName: string | null;
}

export interface ProposalDetail {
  id: string;
  proposalNumber: string;
  workOrderNumber: string;
  customerName: string;
  customerAddress: string;
  scopeOfWork: string;
  refinedScope: string | null;
  serviceCategory: string;
  priority: string;
  status: string;
  totalBidAmount: number;
  vendorTotalCost: number | null;
  notes: string;
  submittedById: string;
  submittedByName: string | null;
  submittedAt: string;
  assignedAdminId: string | null;
  approvedById: string | null;
  approvedAt: string | null;
  sentAt: string | null;
  currentRevision: number;
  parentProposalId: string | null;
  createdAt: string;
  updatedAt: string;
}

export interface PagedResponse<T> {
  items: T[];
  totalCount: number;
  page: number;
  pageSize: number;
}

export interface ProposalFilters {
  search?: string;
  page?: number;
  pageSize?: number;
  status?: string;
  serviceCategory?: string;
  priority?: string;
  fromDate?: string;
  toDate?: string;
  mine?: boolean;
}

export const proposalsApi = {
  create: async (data: CreateProposalRequest): Promise<ProposalDetail> => {
    const res = await apiClient.post('/proposals', data);
    return res.data;
  },

  getAll: async (filters: ProposalFilters = {}): Promise<PagedResponse<ProposalListItem>> => {
    const params = new URLSearchParams();
    if (filters.search) params.append('search', filters.search);
    if (filters.page) params.append('page', String(filters.page));
    if (filters.pageSize) params.append('pageSize', String(filters.pageSize));
    if (filters.status) params.append('status', filters.status);
    if (filters.serviceCategory) params.append('serviceCategory', filters.serviceCategory);
    if (filters.priority) params.append('priority', filters.priority);
    if (filters.mine) params.append('mine', 'true');

    const res = await apiClient.get(`/proposals?${params.toString()}`);
    return res.data;
  },

  getById: async (id: string): Promise<ProposalDetail> => {
    const res = await apiClient.get(`/proposals/${id}`);
    return res.data;
  },

  uploadAttachment: async (proposalId: string, fileName: string): Promise<{ uploadUrl: string; s3Key: string }> => {
    const res = await apiClient.post(`/proposals/${proposalId}/attachments?fileName=${encodeURIComponent(fileName)}`);
    return res.data;
  },

  getStats: async (): Promise<ProposalStats> => {
    const res = await apiClient.get('/proposals/stats');
    return res.data;
  },
};

export interface ProposalStats {
  totalCount: number;
  inReviewCount: number;
  approvedCount: number;
  sentCount: number;
}