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";

interface AgeRange {
    start: number | null;
    end: number | null;
    label: string;
  }
  
interface ScoreStandard {
    ageRanges: AgeRange[];
    scoreTable: {
      [score: string]: number[];
    }
  }

@Injectable()
export class SportStandardService extends BaseService<Prisma.SportStandardDelegate> {
    constructor() {
        super(db,ObjectType.SPORT_STANDARD,true);
    }
    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: { select?: Prisma.SportStandardSelect<DefaultArgs>; include?: Prisma.SportStandardInclude<DefaultArgs>; where: Prisma.SportStandardWhereUniqueInput; }): Promise<{ id: string; projectId: string; gender: boolean; personType: string; ageRanges: Prisma.JsonValue; scoreTable: Prisma.JsonValue; }> {
        const result = await super.findUnique(args)
        return result
    }

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

    public SportScoreCalculator(performance:number,age:number,scoreStandard:ScoreStandard):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);
    
        for (const score of scores) {
            if (performance >= scoreStandard.scoreTable[score][ageRangeIndex]) {
                return score;
            }
        }
    
        return 0;
    }

    async getScore(data: {
        id:string;
        projectId: string;
        gender: boolean;
        age: number;
        performance: number;
        personType: string;
      }){
        const standard = await this.findUnique({
            where:{
                id:data.id,
                projectId: data.projectId,
                gender: data.gender,
                personType: data.personType
            }
        })
        if (!standard) {
            throw new Error('未找到对应的评分标准');
        }

        return this.SportScoreCalculator(
            data.performance,
            data.age,
            standard.scoreTable as any as ScoreStandard
        )
      }
}