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

export interface MarketReportDistrict {
  district: string;
  city: string;
  propertyType: string;
  period: string;
  medianPrice: string;
  avgPriceM2: number;
  totalListings: number;
  daysOnMarket: number;
  inventoryLevel: number;
  absorptionRate: number | null;
  yoyChange: number | null;
}

export interface MarketReportResponse {
  city: string;
  period: string;
  districts: MarketReportDistrict[];
}

export interface HeatmapDataPoint {
  district: string;
  city: string;
  avgPriceM2: number;
  totalListings: number;
  medianPrice: string;
}

export interface HeatmapResponse {
  city: string;
  period: string;
  dataPoints: HeatmapDataPoint[];
}

export interface PriceTrendPoint {
  period: string;
  medianPrice: string;
  avgPriceM2: number;
  totalListings: number;
}

export interface PriceTrendResponse {
  district: string;
  city: string;
  propertyType: string;
  trend: PriceTrendPoint[];
}

export interface DistrictStats {
  district: string;
  city: string;
  propertyType: string;
  medianPrice: string;
  avgPriceM2: number;
  totalListings: number;
  daysOnMarket: number;
  inventoryLevel: number;
  absorptionRate: number | null;
  yoyChange: number | null;
}

export interface DistrictStatsResponse {
  city: string;
  period: string;
  districts: DistrictStats[];
}

export const analyticsApi = {
  getMarketReport: (city: string, period: string, propertyType?: string) => {
    const params = new URLSearchParams({ city, period });
    if (propertyType) params.set('propertyType', propertyType);
    return apiClient.get<MarketReportResponse>(`/analytics/market-report?${params}`);
  },

  getHeatmap: (city: string, period: string) => {
    const params = new URLSearchParams({ city, period });
    return apiClient.get<HeatmapResponse>(`/analytics/heatmap?${params}`);
  },

  getPriceTrend: (district: string, city: string, propertyType: string, periods: string[]) => {
    const params = new URLSearchParams({ district, city, propertyType, periods: periods.join(',') });
    return apiClient.get<PriceTrendResponse>(`/analytics/price-trend?${params}`);
  },

  getDistrictStats: (city: string, period: string) => {
    const params = new URLSearchParams({ city, period });
    return apiClient.get<DistrictStatsResponse>(`/analytics/district-stats?${params}`);
  },
};