/**
 * Fertilization Recommendation API
 * @see RECOMMENDATION_APIS.md
 */

import { apiClient } from "../client";

const PREFIX = "/api/fertilization-recommendation";
const RECOMMEND_PREFIX = "/api/fertilization";

export interface FarmData {
  soilType: string;
  organicMatter: string;
  waterEC: string;
}

export interface GrowthStage {
  id: string;
  icon: string;
  label?: string;
}

export interface CropOption {
  id: string;
  labelKey?: string;
  name?: string;
  icon: string;
  growthStages?: string[];
}

export interface FertilizationConfigResponse {
  farm_uuid?: string;
  farmData: FarmData;
  growthStages: GrowthStage[];
  cropOptions: CropOption[];
}

export interface FertilizationNpkRatio {
  n: number;
  p: number;
  k: number;
  label: string;
}

export interface FertilizationApplicationMethod {
  id: string;
  label: string;
}

export interface FertilizationApplicationInterval {
  label: string;
  unit: string;
  value: number;
}

export interface FertilizationDosage {
  label: string;
  unit: string;
  calculation_basis: string;
  base_amount_per_hectare: number;
  base_amount_per_square_meter: number;
}

export interface FertilizationPrimaryRecommendation {
  fertilizer_code: string;
  fertilizer_name: string;
  display_title: string;
  fertilizer_type: string;
  reasoning: string;
  summary: string;
  npk_ratio: FertilizationNpkRatio;
  application_method: FertilizationApplicationMethod;
  application_interval: FertilizationApplicationInterval;
  dosage: FertilizationDosage;
}

export interface FertilizationNutrientItem {
  key: string;
  name: string;
  unit: string;
  description: string;
  value: number;
}

export interface FertilizationApplicationStep {
  step_number: number;
  title: string;
  description: string;
}

export interface FertilizationApplicationGuide {
  safety_warning: string;
  steps: FertilizationApplicationStep[];
}

export interface FertilizationAlternativeRecommendation {
  fertilizer_code: string;
  fertilizer_name: string;
  fertilizer_type: string;
  usage_method: string;
  description: string;
}

export interface FertilizationSection {
  title: string;
  icon: string;
  type: string;
  content?: string;
  items?: string[];
  applicationMethod?: string;
  fertilizerType?: string;
  validityPeriod?: string;
  amount?: string;
  expandableExplanation?: string;
  timing?: string;
}

export interface FertilizationRecommendationResult {
  primary_recommendation: FertilizationPrimaryRecommendation;
  nutrient_analysis: {
    macro: FertilizationNutrientItem[];
    micro: FertilizationNutrientItem[];
  };
  application_guide: FertilizationApplicationGuide;
  alternative_recommendations: FertilizationAlternativeRecommendation[];
  sections: FertilizationSection[];
}

export interface FertilizationRecommendPayload {
  farm_uuid: string;
  crop_id?: string;
  growth_stage?: string;
  farm_data?: Partial<FarmData>;
  soilType?: string;
  organicMatter?: string;
  waterEC?: string;
}

interface ApiResponse<T> {
  code: number;
  msg: string;
  data: T;
}

async function unwrap<T>(promise: Promise<ApiResponse<T>>): Promise<T> {
  const res = await promise;
  return res.data;
}

export const fertilizationRecommendationService = {
  getConfig(farmUuid: string): Promise<FertilizationConfigResponse> {
    return unwrap(
      apiClient.get<ApiResponse<FertilizationConfigResponse>>(
        `${PREFIX}/config/?farm_uuid=${encodeURIComponent(farmUuid)}`,
      ),
    );
  },

  recommend(
    payload?: FertilizationRecommendPayload,
  ): Promise<FertilizationRecommendationResult> {
    return unwrap(
      apiClient.post<ApiResponse<FertilizationRecommendationResult>>(
        `${RECOMMEND_PREFIX}/recommend/`,
        payload ?? {},
      ),
    );
  },
};