import React from 'react';
import GreyReactBox from 'grey-react-box';
import { chain, bignumber } from 'mathjs';
import InvoiceControllerState from '../InvoiceControllerState';
import { WrappedFormUtils } from 'kts-components-antd-x3/lib/form/Form';
import LineAttributeType from '../InvoiceControllerState/GoodsListState/LineAttributeType';

export default class InvoiceControllerForm extends GreyReactBox<InvoiceControllerState> {
  /** form 字典 */
  readonly formList = new Map<string, WrappedFormUtils>();

  /** 注册 form */
  useForm(key: string, value: WrappedFormUtils) {
    /** 注册 form 到组件 */
    React.useEffect(() => {
      this.formList.set(key, value);
      return () => {
        this.formList.delete(key);
      };
    }, [value, key]);
  }

  /** 校验所有表单 */
  async validateFields(): Promise<{ errors: Map<string, any>; values: Map<string, any> }> {

    await this.wait();

    const _errors = new Map<string, any>();
    const _values = new Map<string, any>();

    const arr = Array.from(this.formList);
    for (let i = 0; i < arr.length; i++) {
      const key = arr[i][0];
      const { errors, values } = await validateFields(arr[i][1]);

      errors && _errors.set(key, errors);
      _values && _values.set(key, values);
    }

    // 列表数据
    if (this.state.goodsListState.form) {
      try {
        await this.state.goodsListState.form?.validateFields()
      } catch (error: any) {
        _errors.set('goodsList', error.errors);
      }
    }
    
    _values.set('goodsList', this.state.goodsListState.goodsList.slice());
    //货物运输列表
    if (this.state.freightListState.form) {
      try {
        await this.state.freightListState.form?.validateFields()
      } catch (error: any) {
        _errors.set('freightList', error.errors);
      }
    }

    _values.set('freightList', this.state.freightListState.goodsList.slice());

    // 金额（含税）
    _values.set('lineAmountIncludeTax', (() => {
      let sum = chain(bignumber(0));
      this.state.goodsListState.goodsList.forEach(e => {
        if (!e || e.lineAttribute === LineAttributeType.赠品行) return;
        sum = sum.add(bignumber(e.lineAmountIncludeTax || 0));
      });
      return sum.done().toNumber();
    })());

    // 金额（不含税）
    _values.set('lineAmountExcludeTax', (() => {
      let sum = chain(bignumber(0));
      this.state.goodsListState.goodsList.forEach(e => {
        if (!e || e.lineAttribute === LineAttributeType.赠品行) return;
        sum = sum.add(bignumber(e.lineAmountExcludeTax || 0));
      });
      return sum.done().toNumber();
    })());

    // 税额 
    _values.set('taxAmount', (() => {
      let sum = chain(bignumber(0));
      this.state.goodsListState.goodsList.forEach((e) => {
        if (!e || e.lineAttribute === LineAttributeType.赠品行) return;
        sum = sum.add(bignumber(e.taxAmount || 0));
      });
      return sum.done().toNumber();
    })());

    // 含税标记
    _values.set('isTaxIncluded', this.state.goodsListState.isTaxIncluded)

    return { errors: _errors, values: _values };
  }
}

const validateFields = (form: WrappedFormUtils) => {
  return new Promise<any>((resolve: (v: any) => void) => {
    form.validateFields((errors, values) => {
      resolve({ errors, values });
    });
  });
};