import { Component, OnInit } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule, ReactiveFormsModule, FormBuilder, FormGroup, Validators } from '@angular/forms';
import { NzFormModule } from 'ng-zorro-antd/form';
import { NzInputModule } from 'ng-zorro-antd/input';
import { NzButtonModule } from 'ng-zorro-antd/button';
import { NzMessageService } from 'ng-zorro-antd/message';
import { PriceService } from '../price.service';
import { PriceDefault } from '../../../core/models/price';
import { NzInputNumberModule } from 'ng-zorro-antd/input-number';
import { NzCardModule } from 'ng-zorro-antd/card';

@Component({
  selector: 'app-price-default',
  standalone: true,
  imports: [
    CommonModule,
    FormsModule,
    ReactiveFormsModule,
    NzFormModule,
    NzInputModule,
    NzButtonModule,
    NzInputNumberModule,
    NzCardModule,
  ],
  templateUrl: './price-default.component.html',
  styleUrl: './price-default.component.scss'
})
export class PriceDefaultComponent implements OnInit {
  priceForm: FormGroup;
  loading = false;

  constructor(
    private fb: FormBuilder,
    private priceService: PriceService,
    private message: NzMessageService
  ) {
    this.priceForm = this.fb.group({
      amount: [null, [Validators.required, Validators.min(0)]],
      firstMontDiscount: [null, [Validators.required, Validators.min(0), Validators.max(100)]],
      oneMonthPrice: [null, [Validators.required, Validators.min(0)]],
      threeMonthsPrice: [null, [Validators.required, Validators.min(0)]],
      sixMonthsPrice: [null, [Validators.required, Validators.min(0)]],
      oneYearPrice: [null, [Validators.required, Validators.min(0)]],
      discount: [null, [Validators.required, Validators.min(0), Validators.max(100)]]
    });
  }

  ngOnInit() {
    this.loadDefaultPrice();
  }

  // 将分转换为元
  private convertCentsToYuan(cents: number): number {
    return cents / 100;
  }

  // 将元转换为分
  private convertYuanToCents(yuan: number): number {
    return Math.round(yuan * 100);
  }

  loadDefaultPrice() {
    this.loading = true;
    this.priceService.getDefaultPrice().subscribe({
      next: (data) => {
        // 将后端返回的分转换为元
        const formData = {
          ...data,
          amount: this.convertCentsToYuan(data.amount),
          oneMonthPrice: this.convertCentsToYuan(data.oneMonthPrice),
          threeMonthsPrice: this.convertCentsToYuan(data.threeMonthsPrice),
          sixMonthsPrice: this.convertCentsToYuan(data.sixMonthsPrice),
          oneYearPrice: this.convertCentsToYuan(data.oneYearPrice)
        };
        this.priceForm.patchValue(formData);
        this.loading = false;
      },
      error: (error) => {
        this.message.error('获取默认价格失败');
        this.loading = false;
      }
    });
  }

  onSubmit() {
    if (this.priceForm.valid) {
      this.loading = true;
      const formValue = this.priceForm.value;

      // 将表单中的元转换为分
      const priceData: PriceDefault = {
        id: 1,
        amount: this.convertYuanToCents(formValue.amount),
        firstMontDiscount: formValue.firstMontDiscount,
        oneMonthPrice: this.convertYuanToCents(formValue.oneMonthPrice),
        threeMonthsPrice: this.convertYuanToCents(formValue.threeMonthsPrice),
        sixMonthsPrice: this.convertYuanToCents(formValue.sixMonthsPrice),
        oneYearPrice: this.convertYuanToCents(formValue.oneYearPrice),
        discount: formValue.discount
      };

      this.priceService.updateDefaultPrice(priceData).subscribe({
        next: () => {
          this.message.success('更新默认价格成功');
          this.loadDefaultPrice();
        },
        error: (error) => {
          this.message.error('更新默认价格失败');
          this.loading = false;
        }
      });
    } else {
      Object.values(this.priceForm.controls).forEach(control => {
        if (control.invalid) {
          control.markAsTouched();
          control.updateValueAndValidity({ onlySelf: true });
        }
      });
    }
  }
}