import { apiClient } from './api-client';

// ─── Types ──────────────────────────────────────────────

export interface ValuationRequest {
  propertyType: string;
  area: number;
  district: string;
  city: string;
  bedrooms?: number;
  bathrooms?: number;
  floors?: number;
  frontage?: number;
  roadWidth?: number;
  yearBuilt?: number;
  hasLegalPaper?: boolean;
}

export interface ValuationComparable {
  id: string;
  title: string;
  address: string;
  district: string;
  priceVND: string;
  areaM2: number;
  pricePerM2: number;
  similarity: number;
  latitude?: number;
  longitude?: number;
}

export interface PriceDriver {
  feature: string;
  impact: number;
  direction: 'positive' | 'negative';
}

export interface ValuationResult {
  id: string;
  estimatedPriceVND: number;
  confidence: number;
  pricePerM2: number;
  priceRangeLow: number;
  priceRangeHigh: number;
  comparables: ValuationComparable[];
  priceDrivers: PriceDriver[];
  modelVersion: string;
  createdAt: string;
}

export interface ValuationHistoryItem {
  id: string;
  propertyType: string;
  district: string;
  city: string;
  area: number;
  estimatedPriceVND: number;
  confidence: number;
  createdAt: string;
}

export interface ValuationHistoryResponse {
  data: ValuationHistoryItem[];
  total: number;
  page: number;
  limit: number;
}

// ─── API ────────────────────────────────────────────────

export const valuationApi = {
  predict: (data: ValuationRequest) =>
    apiClient.post<ValuationResult>('/valuation/predict', data),

  getHistory: (page = 1, limit = 10) =>
    apiClient.get<ValuationHistoryResponse>(
      `/valuation/history?page=${page}&limit=${limit}`,
    ),

  getById: (id: string) =>
    apiClient.get<ValuationResult>(`/valuation/${id}`),

  predictForListing: (listingId: string) =>
    apiClient.post<ValuationResult>(`/valuation/predict-listing/${listingId}`),
};