<!--
 * @Description:It is troublesome to implement radio button group in the form. So it is extracted independently as a separate component
-->
<script lang="ts">
    import type { PropType } from 'vue'
    import { computed, defineComponent, ref, unref, watch, watchEffect } from 'vue'
    import { Radio } from 'ant-design-vue'
    import { isFunction } from '/@/utils/is'
    import { useRuleFormItem } from '/@/hooks/component/useFormItem'
    import { useAttrs } from '/@/hooks/core/useAttrs'
    import { propTypes } from '/@/utils/propTypes'
    import { get, omit } from 'lodash-es'
    import { useI18n } from '/@/hooks/web/useI18n'

    interface OptionsItem {
        label: string
        value: string | number | boolean
        disabled?: boolean
    }

    export default defineComponent({
        name: 'ApiRadioGroup',
        components: {
            RadioGroup: Radio.Group,
            RadioButton: Radio.Button,
            Radio,
        },
        props: {
            api: {
                type: Function as PropType<(arg?: Recordable | string) => Promise<OptionsItem[]>>,
                default: null,
            },
            params: {
                type: [Object, String] as PropType<Recordable | string>,
                default: () => ({}),
            },
            value: {
                type: [String, Number, Boolean] as PropType<string | number | boolean>,
            },
            isBtn: {
                type: [Boolean] as PropType<boolean>,
                default: false,
            },
            numberToString: propTypes.bool,
            resultField: propTypes.string.def(''),
            labelField: propTypes.string.def('label'),
            valueField: propTypes.string.def('value'),
            immediate: propTypes.bool.def(true),
        },
        emits: ['options-change', 'change'],
        setup(props, { emit }) {
            const options = ref<OptionsItem[]>([])
            const loading = ref(false)
            const isFirstLoad = ref(true)
            const emitData = ref<any[]>([])
            const attrs = useAttrs()
            const { t } = useI18n()
            // Embedded in the form, just use the hook binding to perform form verification
            const [state] = useRuleFormItem(props)

            // Processing options value
            const getOptions = computed(() => {
                const { labelField, valueField, numberToString } = props

                return unref(options).reduce((prev, next: Recordable) => {
                    if (next) {
                        const value = next[valueField]
                        prev.push({
                            label: next[labelField],
                            value: numberToString ? `${value}` : value,
                            ...omit(next, [labelField, valueField]),
                        })
                    }
                    return prev
                }, [] as OptionsItem[])
            })

            watchEffect(() => {
                props.immediate && fetch()
            })

            watch(
                () => props.params,
                () => {
                    !unref(isFirstLoad) && fetch()
                },
                { deep: true },
            )

            async function fetch() {
                const api = props.api
                if (!api || !isFunction(api)) return
                options.value = []
                try {
                    loading.value = true
                    const res = await api(props.params)
                    if (Array.isArray(res)) {
                        options.value = res
                        emitChange()
                        return
                    }
                    if (props.resultField) {
                        options.value = get(res, props.resultField) || []
                    }
                    emitChange()
                } catch (error) {
                    console.warn(error)
                } finally {
                    loading.value = false
                }
            }

            function emitChange() {
                emit('options-change', unref(getOptions))
            }

            function handleChange(_, ...args) {
                emitData.value = args
            }

            return { state, getOptions, attrs, loading, t, handleChange, props }
        },
    })
</script>

<template>
    <RadioGroup v-bind="attrs" v-model:value="state" button-style="solid" @change="handleChange">
        <template v-for="item in getOptions" :key="`${item.value}`">
            <RadioButton v-if="props.isBtn" :value="item.value" :disabled="item.disabled">
                {{ item.label }}
            </RadioButton>
            <Radio v-else :value="item.value" :disabled="item.disabled">
                {{ item.label }}
            </Radio>
        </template>
    </RadioGroup>
</template>
