import { api } from '@/services/api';

export type MealType = 'breakfast' | 'lunch' | 'dinner' | 'snack' | 'other';
export type RecordSource = 'manual' | 'vision' | 'other';

export type DietRecord = {
  id: number;
  mealType: MealType;
  foodName: string;
  foodDescription?: string;
  weightGrams?: number;
  portionDescription?: string;
  estimatedCalories?: number;
  proteinGrams?: number;
  carbohydrateGrams?: number;
  fatGrams?: number;
  fiberGrams?: number;
  sugarGrams?: number;
  sodiumMg?: number;
  additionalNutrition?: any;
  source: RecordSource;
  mealTime?: string;
  imageUrl?: string;
  notes?: string;
  createdAt: string;
  updatedAt: string;
};

export type NutritionSummary = {
  totalCalories: number;
  totalProtein: number;
  totalCarbohydrate: number;
  totalFat: number;
  totalFiber: number;
  totalSugar: number;
  totalSodium: number;
  updatedAt: string;
};

export async function getDietRecords({
  startDate,
  endDate,
  page = 1,
  limit = 10,
}: {
  startDate?: string;
  endDate?: string;
  page?: number;
  limit?: number;
}): Promise<{
  records: DietRecord[]
  total: number
  page: number
  limit: number
}> {
  const searchParams = new URLSearchParams();
  if (startDate) searchParams.append('startDate', startDate);
  if (endDate) searchParams.append('endDate', endDate);
  searchParams.append('page', page.toString());
  searchParams.append('limit', limit.toString());

  const params = searchParams.toString() ? `?${searchParams.toString()}` : '';
  return await api.get<{
    records: DietRecord[]
    total: number
    page: number
    limit: number
  }>(`/users/diet-records${params}`);
}

export function calculateNutritionSummary(records: DietRecord[]): NutritionSummary {
  if (records?.length === 0) {
    return {
      totalCalories: 0,
      totalProtein: 0,
      totalCarbohydrate: 0,
      totalFat: 0,
      totalFiber: 0,
      totalSugar: 0,
      totalSodium: 0,
      updatedAt: '',
    };
  }

  return records.reduce(
    (summary, record) => ({
      totalCalories: summary.totalCalories + (record.estimatedCalories || 0),
      totalProtein: summary.totalProtein + (record.proteinGrams || 0),
      totalCarbohydrate: summary.totalCarbohydrate + (record.carbohydrateGrams || 0),
      totalFat: summary.totalFat + (record.fatGrams || 0),
      totalFiber: summary.totalFiber + (record.fiberGrams || 0),
      totalSugar: summary.totalSugar + (record.sugarGrams || 0),
      totalSodium: summary.totalSodium + (record.sodiumMg || 0),
      updatedAt: record.updatedAt,
    }),
    {
      totalCalories: 0,
      totalProtein: 0,
      totalCarbohydrate: 0,
      totalFat: 0,
      totalFiber: 0,
      totalSugar: 0,
      totalSodium: 0,
      updatedAt: '',
    }
  );
}

// 将营养数据转换为雷达图数据（0-5分制）
export function convertToRadarData(summary: NutritionSummary): number[] {
  // 基于推荐日摄入量计算分数
  const recommendations = {
    calories: 2000, // 卡路里
    protein: 50, // 蛋白质(g)
    carbohydrate: 300, // 碳水化合物(g)
    fat: 65, // 脂肪(g)
    fiber: 25, // 膳食纤维(g)
    sodium: 2300, // 钠(mg)
  };

  return [
    Math.min(5, (summary.totalCalories / recommendations.calories) * 5),
    Math.min(5, (summary.totalProtein / recommendations.protein) * 5),
    Math.min(5, (summary.totalCarbohydrate / recommendations.carbohydrate) * 5),
    Math.min(5, (summary.totalFat / recommendations.fat) * 5),
    Math.min(5, (summary.totalFiber / recommendations.fiber) * 5),
    Math.min(5, Math.max(0, 5 - (summary.totalSodium / recommendations.sodium) * 5)), // 钠含量越低越好
  ];
}