<!--
 - MineAdmin is committed to providing solutions for quickly building web applications
 - Please view the LICENSE file that was distributed with this source code,
 - For the full copyright and license information.
 - Thank you very much for using MineAdmin.
 -
 - @Author X.Mo<root@imoi.cn>
 - @Link   https://gitee.com/xmo/mineadmin-vue
-->
<template>
    <ma-form-item
        v-if="typeof props.component.display == 'undefined' || props.component.display === true"
        :component="props.component"
        :custom-field="props.customField"
    >
        <slot :name="`form-${props.component.dataIndex}`" v-bind="props.component">
            <a-select
                v-model:model-value="value"
                :multiple="props.component.multiple"
                :size="props.component.size"
                :allow-clear="props.component.allowClear ?? true"
                :disabled="props.component.disabled"
                :readonly="props.component.readonly"
                :error="props.component.error"
                :placeholder="props.component.placeholder ?? `请选择${props.component.title}`"
                :loading="props.component.loading"
                :allow-search="props.component.allowSearch ?? true"
                :allow-create="props.component.allowCreate"
                :max-tag-count="props.component.maxTagCount"
                :bordered="props.component.bordered"
                :unmount-on-close="props.component.unmountOnClose"
                :popup-container="props.component.popupContainer"
                :filter-option="props.component.filterOption"
                :virtual-list-props="props.component.virtualListProps"
                :trigger-props="props.component.triggerProps"
                :format-label="props.component.formatLabel"
                :fallback-option="props.component.fallbackOption"
                :show-extra-options="props.component.showExtraOptions"
                :value-key="props.component.valueKey"
                :search-delay="props.component.searchDelay"
                :limit="props.component.limit"
                :field-names="props.component.fieldNames"
                :scrollbar="props.component.scrollbar"
                @input-value-change="maEvent.handleInputEvent(props.component, $event)"
                @change="handleCascaderChangeEvent($event)"
                @remove="maEvent.customeEvent(props.component, $event, 'onRemove')"
                @popup-visible-change="maEvent.customeEvent(props.component, $event, 'onPopupVisibleChange')"
                @dropdown-scroll="maEvent.handleCommonEvent(props.component, 'onDropdownScroll')"
                @dropdown-reach-bottom="maEvent.handleCommonEvent(props.component, 'onDropdownReachBottom')"
                @exceed-limit="maEvent.customeEvent(props.component, $event, 'onExceedLimit')"
                @clear="maEvent.handleCommonEvent(props.component, 'onClear')"
                @focus="maEvent.handleCommonEvent(props.component, 'onFocus')"
                @blur="maEvent.handleCommonEvent(props.component, 'onBlur')"
                @search="maEvent.customeEvent(props.component, $event, 'onSearch')"
            >
                <template v-for="(item, index) in dictList[dictIndex] ?? []">
                    <a-option :value="item.value" :disabled="item.disabled">{{ item.label }}</a-option>
                </template>
                <template #header v-if="props.component.multiple">
                    <div style="padding: 6px 12px">
                        <a-space>
                            <a-checkbox :value="false" @change="handleSelectAll">全选/清除</a-checkbox>
                            <a-button size="mini" type="outline" @click="handleInverse">反选</a-button>
                        </a-space>
                    </div>
                </template>
                <template #footer v-if="props.component?.dict.pageOption ?? false">
                    <div class="flex justify-center">
                        <a-pagination class="p-2" size="mini" :total="200" simple>
                            <template #page-item-step="{ type }">
                                <div>{{ type === "previous" ? "上一页" : "下一页" }}</div>
                            </template>
                        </a-pagination>
                    </div>
                </template>
            </a-select>
        </slot>
    </ma-form-item>
</template>

<script setup>
import { ref, inject, onMounted, nextTick, watch } from "vue"
import MaFormItem from "./form-item.vue"
import { get, isUndefined, set, xor } from "lodash"
import { maEvent } from "../js/formItemMixin.js"
import { handlerCascader } from "../js/networkRequest.js"

const props = defineProps({
    component: Object,
    customField: { type: String, default: undefined }
})

const formModel = inject("formModel")
const dictList = inject("dictList")
const formLoading = inject("formLoading")
const columns = inject("columns")

const index = props.customField ?? props.component.dataIndex
const dictIndex = index.match(/^(\w+\.)\d+\./)
    ? index.match(/^(\w+\.)\d+\./)[1] + props.component.dataIndex
    : props.component.dataIndex
const value = ref(get(formModel.value, index, ""))

watch(
    () => get(formModel.value, index),
    (vl) => (value.value = vl)
)
watch(
    () => value.value,
    (v) => {
        set(formModel.value, index, v)
        index.indexOf(".") > -1 && delete formModel.value[index]
    }
)

if (value.value === "") {
    value.value = undefined
} else if (
    !isUndefined(value.value) &&
    props.component.dict &&
    (props.component.dict.name || props.component.dict.data) &&
    !props.component.multiple
) {
    value.value = value.value + ""
}

const handleSelectAll = (status) => {
    if (isUndefined(value.value)) {
        value.value = []
    }
    if (status) {
        dictList.value[dictIndex].map((item) => {
            value.value.push(item.value)
        })
    } else {
        value.value = []
    }
}

const handleInverse = () => {
    if (isUndefined(value.value)) {
        value.value = []
    }
    const ids = []
    dictList.value[dictIndex].map((item) => ids.push(item.value))
    value.value = xor(ids, value.value)
}

const handleCascaderChangeEvent = async (value) => {
    formLoading.value = true
    const component = props.component
    // 执行自定义事件
    if (component.onChange) {
        maEvent.handleChangeEvent(component, value)
    }

    // 处理联动
    if (!index.match(/^(\w+)\.\d+\./)) {
        await handlerCascader(value, component, columns.value, dictList.value, formModel.value)
    }
    nextTick(() => (formLoading.value = false))
}

maEvent.handleCommonEvent(props.component, "onCreated")
onMounted(() => {
    maEvent.handleCommonEvent(props.component, "onMounted")
})
</script>
