import { Injectable } from '@nestjs/common';
import { BaseService } from '../base/base.service';
import { db, ObjectType, Prisma, UserProfile } from '@nice/common';
import EventBus, { CrudOperation } from '@server/utils/event-bus';
import { DefaultArgs } from '@prisma/client/runtime/library';
import { z } from 'zod';

interface AgeRange {
  start: number | null;
  end: number | null;
  label: string;
}
interface Record {
  [key: number]: (number | string)[];
}
interface ScoreStandard {
  ageRanges: AgeRange[];
  scoreTable: Record;
}

const GetScoreArgsSchema = z.object({
  projectId: z.string().nonempty(),
  gender: z.boolean(),
  age: z.number().min(0),
  performance: z.number().min(0).or(z.string()),
  personType: z.string().nonempty(),
  projectUnit: z.string().nonempty(),
});

@Injectable()
export class SportStandardService extends BaseService<Prisma.SportStandardDelegate> {
  constructor() {
    super(db, ObjectType.SPORT_STANDARD, false);
  }
  async create(args: Prisma.SportStandardCreateArgs) {
    console.log(args);
    const result = await super.create(args);
    this.emitDataChanged(CrudOperation.CREATED, result);
    return result;
  }

  async update(args: Prisma.SportStandardUpdateArgs) {
    const result = await super.update(args);
    this.emitDataChanged(CrudOperation.UPDATED, result);
    return result;
  }

  async findMany(args: Prisma.SportStandardFindManyArgs) {
    const result = await super.findMany(args);
    return result;
  }
  async findUnique(args: Prisma.SportStandardFindUniqueArgs) {
    const result = await super.findUnique(args);
    return result;
  }

  private emitDataChanged(operation: CrudOperation, data: any) {
    EventBus.emit('dataChanged', {
      type: ObjectType.SPORT_STANDARD,
      operation,
      data,
    });
  }

  async createStandard(
    data: {
      projectId: string;
      gender: boolean;
      personType: string;
      ageRanges: AgeRange[];
      scoreTable: Record;
    },
    select?: Prisma.SportStandardSelect<DefaultArgs>,
    include?: Prisma.SportStandardInclude<DefaultArgs>,
  ) {
    console.log(data);
    this.validateAgeRanges(data.ageRanges);
    this.validateScoreTable(data.scoreTable, data.ageRanges.length);
    const result = await super.create({
      data: {
        projectId: data.projectId,
        gender: data.gender,
        personType: data.personType,
        ageRanges: JSON.stringify(data.ageRanges),
        scoreTable: JSON.stringify(data.scoreTable),
      },
      select,
      include,
    });
    this.emitDataChanged(CrudOperation.CREATED, result);
    return result;
  }
  private validateAgeRanges(ranges: AgeRange[]) {
    // 先按起始年龄排序
    const sortedRanges = [...ranges].sort(
      (a, b) => (a.start || 0) - (b.start || 0),
    );

    for (let i = 0; i < sortedRanges.length - 1; i++) {
      const current = sortedRanges[i];
      const next = sortedRanges[i + 1];
      // 检查重叠
      if ((current.end || Infinity) >= next.start) {
        throw new Error(`年龄范围 ${current.label} 和 ${next.label} 重叠`);
      }
      // 检查连续性（允许有间隔）
      if ((current.end || Infinity) + 1 > next.start) {
        throw new Error(`年龄范围 ${current.label} 和 ${next.label} 不连续`);
      }
    }
  }

  private validateScoreTable(scoreTable: Record, expectedLength: number) {
    Object.values(scoreTable).forEach((standards) => {
      if (standards.length !== expectedLength) {
        throw new Error('分数表的每行数据长度必须与年龄段数量匹配');
      }
    });
  }
  async updateStandard(data: {
    id: string;
    ageRanges: AgeRange[];
    scoreTable: Record;
  }) {
    this.validateAgeRanges(data.ageRanges);
    this.validateScoreTable(data.scoreTable, data.ageRanges.length);
    const result = await super.update({
      where: {
        id: data.id,
      },
      data: {
        ageRanges: JSON.stringify(data.ageRanges),
        scoreTable: JSON.stringify(data.scoreTable),
      },
    });
    this.emitDataChanged(CrudOperation.UPDATED, result);
    return result;
  }

  public SportScoreCalculator(
    performance: number | string,
    age: number,
    scoreStandard: ScoreStandard,
    projectUnit: string,
  ): number {
    // 1. 找到对应的年龄段索引
    const ageRangeIndex = scoreStandard.ageRanges.findIndex((range) => {
      const isAboveStart = range.start === null || age > range.start;
      const isBelowEnd = range.end === null || age <= range.end;
      return isAboveStart && isBelowEnd;
    });

    if (ageRangeIndex === -1) {
      throw new Error('未找到匹配的年龄段');
    }

    // 2. 查找对应分数
    const scores = Object.keys(scoreStandard.scoreTable)
      .map(Number)
      .sort((a, b) => b - a);

    const isTimeUnit = projectUnit.includes('time'); // 假设时间单位包含 '时间单位' 字符串

    for (const score of scores) {
      const standard =
        scoreStandard.scoreTable[score.toString()][ageRangeIndex];
      if (isTimeUnit) {
        // 此时的performance和standard是时间字符串
        // 需要将时间字符串转换为秒
        if (
          this.timeStringToSeconds(performance) <=
          this.timeStringToSeconds(standard)
        ) {
          return score;
        }
      } else {
        if (performance >= standard) {
          return score;
        }
      }
    }

    return 0;
  }

  async getScore(data: z.infer<typeof GetScoreArgsSchema>) {
    console.log('传入的参数', data);
    const standard = await this.findUnique({
      where: {
        projectId_gender_personType: {
          // 使用复合唯一索引
          projectId: data.projectId,
          gender: data.gender,
          personType: data.personType,
        },
      },
    });
    console.log('找到的评分标准', standard);
    if (!standard) {
      throw new Error('未找到对应的评分标准');
    }
    const scoreTable: Record = JSON.parse(String(standard.scoreTable));
    const ageRanges: AgeRange[] = JSON.parse(String(standard.ageRanges));
    const scoreStandard: ScoreStandard = {
      ageRanges,
      scoreTable,
    };
    console.log('评分标准', scoreStandard);
    return this.SportScoreCalculator(
      data.performance,
      data.age,
      scoreStandard,
      data.projectUnit,
    );
  }
  // 将 13:45 格式的字符串转换为秒数
  private timeStringToSeconds(timeStr) {
    const [minutes, seconds] = timeStr.split(':').map(Number);
    return minutes * 60 + seconds;
  }

  // 将秒数转换为 13:45 格式的字符串
  private secondsToTimeString(seconds: number) {
    const minutesPart = Math.floor(seconds / 60);
    const secondsPart = seconds % 60;
    return `${String(minutesPart).padStart(2, '0')}:${String(
      secondsPart,
    ).padStart(2, '0')}`;
  }
}