import { Vue, Component, Prop, Watch } from 'vue-property-decorator';
import { IFormItemSource } from '@/types/formItem';
import { isFunction, isArray } from '@/utils/index';

@Component
export default class extends Vue {
  @Prop() value!: any;
  @Prop({ type: Object }) source!: IFormItemSource;

  localValue = this.value;
  localSource: any[] = [];

  @Watch('value', { deep: true })
  listenValue(newValue) {
    this.localValue = newValue;
  }

  @Watch('localValue', { immediate: true, deep: true })
  emitUpdate(newValue: any) {
    this.$emit('input', newValue);
    this.$emit('update:value', newValue);
  }

  async created() {
    const { labelKey, valueKey, data } = this.source;
    let _localSource: any[] = [];
    if (isArray(data)) {
      _localSource = data as [];
    } else if (isFunction(data)) {
      _localSource = (await (data as Function)()) || [];
    }

    this.localSource = _localSource.map(item => ({
      label: item[labelKey],
      value: item[valueKey],
      // NODE: 用于控制每个选项的禁用
      disable: item.disable || false
    }));
  }
}