<template>
    <div>
        <LineLabel v-if="label" :label = "label"/>
        <div v-for="(item, index) in formConfig" :key="index">
            <template v-if="item.type === 'cardItem'">
                <div class="grid-container">
                    <div v-for="(sItem, key) in item.config" class="form-item" :class="sItem.span == 1 ? 'full-row' : ''"
                        :key="key">
                        <template v-if="sItem.type === 'input'">
                            <div class="form-title">{{ sItem.label }}</div>
                            <HandleFormItem @blur="onBlur(key, $event)" :item="sItem" v-model="formFields[key]" 
                                @copy="onCopy(sItem, key)" :error="errors[key]" @update:error="errors[key] = false" 
                                :orange-bg="orangeBgFields[key]" />
                        </template>
                        <template v-else-if="sItem.type === 'inputNumber'">
                            <div class="form-title">{{ sItem.label }}</div>
                            <HandleFormItem type = "inputNumber" @blur="onBlur(key, $event)" :item="sItem" @input = "onInputNumberChange(key, $event)"  v-model="formFields[key]" 
                                @copy="onCopy(sItem, key)" :error="errors[key]" @update:error="errors[key] = false" 
                                :orange-bg="orangeBgFields[key]" />
                        </template>
                    </div>
                </div>
            </template>
            <template v-else-if="item.type === 'conditionItem'">
                <div class="form-item ">
                    <div class="form-title fs-16" v-if="item.label">{{ item.label }}</div>
                    <div v-for="(sItem, key) in item.config" class="c-Item  grid-container">
                        <div class="p-r-20">
                            <div class="form-title">{{ sItem.label }}</div>
                            <div class="flex ">
                                <HandleFormItem type="select" :item="sItem" v-model="formFields[key]"
                                    @copy="onCopy(sItem, key)" @change="onSelectChange(key, $event)" :error="errors[key]" @update:error="errors[key] = false" 
                                    :orange-bg="orangeBgFields[key]" />

                            </div>
                        </div>
                        <div  class="p-l-20">
                            <div v-show="isShowOther(formFields[key])">
                                <div class="form-title">其他</div>
                                <div class="flex">
                                    <HandleFormItem @blur="onBlur(key, $event)" :item="getOtherItem(sItem)" v-model="formFields[sItem.otherCode]" 
                                        @copy="onCopy(sItem, key)" :error="errors[sItem.otherCode]" @update:error="errors[sItem.otherCode] = false" />
                                </div>
                            </div>

                        </div>

                    </div>
                </div>
            </template>
            <template v-else-if="item.type === 'cellItem'">
                <div class="form-item ">
                    <div class="form-title fs-16" v-if="item.label">{{ item.label }}</div>
                    <div class="grid-container gap2">
                        <div v-for="(sItem, key) in item.config" class="c-Item" :class="getSpanClass(sItem)"
                            :key="key">
                            <div class="form-title" v-if="sItem.label">{{ sItem.label }}</div>
                            <div v-if="sItem.type === 'dateTime'" class="flex1">
                                <HandleFormItem type="dateTime" :item="sItem" v-model="formFields[key]"
                                    @copy="onCopy(sItem, key)" :error="errors[key]" @update:error="errors[key] = false" 
                                    :orange-bg="orangeBgFields[key]" />
                            </div>
                            <div v-else-if="sItem.type === 'select'">
                                <HandleFormItem type="select" :item="sItem" v-model="formFields[key]"
                                    @copy="onCopy(sItem, key)" @change="onSelectChange(key, $event)" :error="errors[key]" @update:error="errors[key] = false" 
                                    :orange-bg="orangeBgFields[key]" />
                            </div>
                            <div v-else-if="sItem.type === 'input'">
                                <HandleFormItem @blur="onBlur(key, $event)" :item="sItem" v-model="formFields[key]" 
                                @copy="onCopy(sItem, key)" :error="errors[key]" @update:error="errors[key] = false" 
                                :orange-bg="orangeBgFields[key]" />
                            </div>
                            <div v-else-if="sItem.type === 'textarea'">
                                <HandleFormItem @blur="onBlur(key, $event)" type="textarea" :item="sItem" v-model="formFields[key]" 
                                @copy="onCopy(sItem, key)" :error="errors[key]" @update:error="errors[key] = false" 
                                :orange-bg="orangeBgFields[key]" />
                            </div>
                        </div>
                    </div>

                </div>
            </template>
            <template v-else-if="item.type === 'step'">
                <div class="grid-container gap2">
                    <div v-for="(sItem, key) in item.config" class="c-Item flex item-center" :class="getSpanClass(sItem)"
                        :key="key">
                        <div class="step-form-title" v-if="sItem.label">{{ sItem.label }}</div>
                        <div v-if="sItem.type === 'dateTime'" class="flex1">
                            <HandleFormItem type="dateTime" :item="sItem" v-model="formFields[key]"
                                    @copy="onCopy(sItem, key)" :error="errors[key]" @update:error="errors[key] = false" 
                                    :orange-bg="orangeBgFields[key]" />
                        </div>
                        <div v-else-if="sItem.type === 'select'" class="flex flex1">
                            <HandleFormItem type="select" :item="sItem" style="width: auto;flex:1" v-model="formFields[key]"
                                @copy="onCopy(sItem, key)" @change="onSelectChange(key, $event)" :error="errors[key]" @update:error="errors[key] = false" 
                                :orange-bg="orangeBgFields[key]" />
                            <div v-show="isShowOther(formFields[key])" class="flex flex1">
                                <div class="other-title">其他</div>
                                <div class="flex">
                                    <HandleFormItem @blur="onBlur(key, $event)" class="sub-select" :item="getOtherItem(sItem)" v-model="formFields[sItem.otherCode]" 
                                        @copy="onCopy(sItem, key)" :error="errors[sItem.otherCode]" @update:error="errors[sItem.otherCode] = false" 
                                        :orange-bg="orangeBgFields[sItem.otherCode]" />
                                </div>
                            </div>
                        </div>
                        <div v-else-if="sItem.type === 'input'" class="flex flex1">
                            <HandleFormItem @blur="onBlur(key, $event)" class="flex1" :item="sItem" v-model="formFields[key]" 
                            @copy="onCopy(sItem, key)" :error="errors[key]" @update:error="errors[key] = false" 
                            :orange-bg="orangeBgFields[key]" />
                            <HandleFormItem v-if="sItem.subType === 'select'" type="select" class="sub-select" :item="getSubItem(sItem)" v-model="formFields[sItem.subKey]" 
                            @copy="onCopy(sItem, key)" @change="onSelectChange(sItem.subKey, $event)" :error="errors[sItem.subKey]" @update:error="errors[sItem.subKey] = false" 
                            :orange-bg="orangeBgFields[sItem.subKey]" />
                            <div v-else-if="sItem.subType === 'span'">{{ formFields[sItem.subKey] }}</div>
                            <HandleFormItem v-else-if="sItem.subType === 'clickable'" type="clickable" @clickable="handleClickable(sItem,$event)" class="sub-select" :item="getClickableItem(sItem)" :value="formFields[sItem.subKey]" 
                            />
                            <!-- <div class="clickable" :class="getFillType(sItem.subFillType)" v-else-if = "sItem.subType ==='clickable'" @click="handleClickable(sItem,$event)">
                                <span v-if="formFields[sItem.subKey]">{{ formFields[sItem.subKey] }}</span>
                                <span v-else class="default-placeholder-text">请选择</span>
                            </div> -->
                        </div>
                        <div v-else-if="sItem.type === 'inputNumber'" class="flex flex1">
                            <HandleFormItem type = "inputNumber" @blur="onBlur(key, $event)" class="flex1" :item="sItem" @input = "onInputNumberChange(key, $event)" :value = "formFields[key]" 
                            @copy="onCopy(sItem, key)" :error="errors[key]" @update:error="errors[key] = false" 
                            :orange-bg="orangeBgFields[key]" />
                            <HandleFormItem v-if="sItem.subType === 'select'" type="select" class="sub-select" :item="getSubItem(sItem)" v-model="formFields[sItem.subKey]" 
                            @copy="onCopy(sItem, key)" @change="onSelectChange(sItem.subKey, $event)" :error="errors[sItem.subKey]" @update:error="errors[sItem.subKey] = false" 
                            :orange-bg="orangeBgFields[sItem.subKey]" />
                            <div v-else-if="sItem.subType === 'span'">{{ formFields[sItem.subKey] }}</div>
                              <HandleFormItem v-else-if="sItem.subType === 'clickable'" @clickable="handleClickable(sItem,$event)" type="clickable" class="sub-select" :item="getClickableItem(sItem)" :value="formFields[sItem.subKey]" 
                            />
                            <!-- <div class="clickable" :class="getFillType(sItem.subFillType)" v-else-if = "sItem.subType ==='clickable'" @click="handleClickable(sItem,$event)">
                                <span v-if="formFields[sItem.subKey]">{{ formFields[sItem.subKey] }}</span>
                                <span v-else class="default-placeholder-text">请选择</span>
                            </div> -->
                        </div>
                    </div>
                </div>
            </template>
        </div>
    </div>
</template>

<script>
import HandleFormItem from "./HandleFormItem.vue";
import LineLabel from "./LineLabel.vue";
export default {
    components: {
        HandleFormItem,
        LineLabel
    },
    props: {
        label:{//当前表单的标题
            type: String,
            default: "",
        },
        formConfig: {
            type: Array,
            value: () => [],
        },
        formData: {
            type: Object,
            value: () => ({})
        }
    },
    data() {
        return {
            formFields: {},//表单绑定字段
            allFieldsConfig: {},//包含config的所有字段,主要用于校验表单是否填写
            errors: {},//存储表单错误信息，用于标红提示
            orangeBgFields: {},// 存储需要橙色背景的字段
        };
    },
    watch: {
        formData: {
            immediate: true,
            deep: true, // 深度监听，以便检测嵌套对象变化
            handler(v) {
                if(v){
                    this.handleFormField();
                }
            }
        },
        formConfig: {
            immediate: true,
            deep: true, // 深度监听，以便检测嵌套对象变化
            handler(v) {
                this.handleFormField();
            }
        }
    },
    mounted() {
        this.handleFormField();
    },

    methods: {
        getFillType(type) {
            const typeObj = {
                actFill: "orange-border",//实际填写的边框颜色
                green: "green-border",
                preFill: "blue-border",//预填写的边框颜色
            }
            return typeObj[type] || ""
        },
        onInputNumberChange(key, val){
            this.formFields[key] = val;
            // 清除该表单项的错误状态
            if (this.errors[key]) {
                this.$set(this.errors, key, false);
            }
        },
        updateFormData(key, value){
            this.formFields[key] = value;
            // 清除该表单项的错误状态
            if (this.errors[key]) {
                this.$set(this.errors, key, false);
            }
        },
        batchUpdateFormData(data){
            Object.keys(data).forEach(key => {
                this.formFields[key] = data[key];
                // 清除该表单项的错误状态
                if (this.errors[key]) {
                    this.$set(this.errors, key, false);
                }
            })
        },
        handleClickable(sItem,event){
            if(this.$store.state.template.templateStatus !== 'actFill'){
                return
            }
            this.$emit("clickable",sItem)
        },
        //根据span判断一行显示几列
        getSpanClass(sItem){
            const spanArr = ["full-row","","three-row"]
            if(sItem.span){
                return spanArr[sItem.span-1]
            }
            return ""
        },
        //获取其他下拉框的配置
        getOtherItem(sItem){
            return {
                label:"其他",
                fillType: sItem.fillType,
                maxlength: sItem.otherMaxlength || 50,
            }
        },
        getClickableItem(sItem){
            return {
                label: "",
                type: "clickable",
                fillType: sItem.subFillType || sItem.fillType,
            }
        },
        getSubItem(sItem){
            return {
                label: "",
                options: sItem.subOptions || [],
                fillType: sItem.subFillType || sItem.fillType,
            }
        },
        isShowOther(v = []) {
            // 确保v是数组类型，以避免类型错误
            const arr = Array.isArray(v) ? v : [v];
            //和凡哥商量，只要value为负数都显示其他
            return arr.some(item => item<0);
        },
        // 根据formConfig回填form表单数据
        handleFormField() {
            const result = {};
            let config = {};
            const { formConfig, formData, formFields } = this;
            // 遍历配置
            formConfig.forEach((item) => {
                if (item.config) {
                    // 合并配置项
                    config = { ...config, ...item.config }
                    
                    // 处理每个配置项
                    Object.keys(item.config).forEach(key => {
                        const currentConfig = item.config[key];
                        let value = formData[key];
                        
                        // 如果formFields中已经有值，保持原值（用户输入或之前设置的值）
                        if (formFields[key] !== null && 
                            formFields[key] !== undefined && 
                            formFields[key] !== ''&&
                            typeof formFields[key] !== 'object'
                        ) {
                            // 保留原值，不使用formData中的值
                            result[key] = formFields[key];
                        } else {
                            // 使用formData中的值
                            result[key] = value;
                        }
                        
                        // 处理特殊字段 - "其他"字段
                        if (currentConfig.otherCode) {
                            const { otherCode } = currentConfig;
                            result[otherCode] = formData[otherCode] || '';
                            config[otherCode] = { label: "其他", parentKey:key, type: "input",fillType:currentConfig.fillType,otherCode }
                        }
                        if (currentConfig.subKey) {
                            const { subKey } = currentConfig;
                            result[subKey] = formData[subKey] || '';
                            config[subKey] = { label: currentConfig.label,subKey, type: currentConfig.subType,fillType:currentConfig.subFillType || currentConfig.fillType }
                        }
                    });
                    
                    // 处理可能存在的直接otherCode字段
                    if (item.config?.otherCode) {
                        config[item.config?.otherCode] = item.config?.otherCode;
                    }
                }
            });
            // 更新表单字段
            this.formFields = result;
            this.allFieldsConfig = config;
        },
        //判断是否禁用
        getDisabled() {
            const { item } = this;
            const { fillType } = item;
            if (item.hasOwnProperty("disabled")) {
                return item.disabled
            } else {
                const { templateStatus } = this.$store.state.template;
                if (fillType === "actFill") {//当模板状态是实际填写时，只有当fillType是actFill时才能填写
                    return templateStatus !== "actFill"
                } else if (fillType === "preFill") {//当模板状态是预填写时，只有当fillType是preFill才能填写
                    return templateStatus !== "preFill"
                } else {
                    return true
                }
            }
        },
        // 表单数据校验
        validateFormData() {
            const { formFields, allFieldsConfig } = this;
            const { templateStatus } = this.$store.state.template;
            const errors = [];
            
            // 清空之前的错误状态
            this.errors = {};
            
            for (const key in allFieldsConfig) {
                if (this.isValueEmpty(formFields[key])) {
                    const o = allFieldsConfig[key];
                    // 其他字段需要判断是否显示再校验   
                    if (o.label === "其他" && !this.isShowOther(formFields[o.parentKey])) {
                        continue
                    }
                    //span的字段不校验
                    if(o.type === "span"){
                        continue
                    }
                    if (o.fillType == templateStatus && !o.disabled) {
                        let prefix = "";
                        if (o.type === "input" || o.type === "inputNumber" || o.type === "textarea") {
                            prefix = "填写";
                        } else {
                            prefix = "选择";
                        }
                        
                        const errorItem = {
                            field: key,
                            label: o.label,
                            error: `请${prefix}${o.label}`
                        };
                        
                        errors.push(errorItem);
                        this.$set(this.errors, key, true);
                    }
                }
            }
            
            return {
                valid: errors.length === 0,
                errors: errors
            };
        },
        // 判断值是否为空
        isValueEmpty(value) {
            if (value === null || value === undefined || value === '') {
                return true;
            }
            if (typeof value === 'string' && value.trim() === '') {
                return true;
            }
            if (Array.isArray(value) && value.length === 0) {
                return true;
            }
            return false;
        },
        getFormData() {
            // 数据校验
            const validateResult = this.validateFormData();
            return new Promise((resolve, reject) => {
                if (validateResult.valid) {
                    resolve(this.formFields);
                } else {
                    // this.$message.error("表单内容未填完,请填写后再提交");
                    reject(validateResult.errors[0].error);
                }
            });
        },
        getFormDataByKey(key){
            return this.formFields[key];
        },
        onBlur(key, val) {
            // compareTo 功能：当fillType==="actFill"时，判断当前值是否与compareTo字段的值一样，如果不一样则将当前input框的背景色标记成橙色
            const currentFieldConfig = this.allFieldsConfig[key];
            if (currentFieldConfig && currentFieldConfig.fillType === "actFill" && currentFieldConfig.compareTo) {
                const compareToKey = currentFieldConfig.compareTo;
                const compareToValue = this.formFields[compareToKey];
                
                // 比较当前值和compareTo值，如果不相等则设置橙色背景
                if (val !== compareToValue) {
                    this.$set(this.orangeBgFields, key, true);
                } else {
                    // 相等则移除橙色背景
                    this.$set(this.orangeBgFields, key, false);
                }
            }
            
            this.$emit("blur", { key, value: val ,...this.formFields});
        },
        onSelectChange(key, val) {
            // 获取对应的配置
            const currentConfig = this.allFieldsConfig[key];
            
            // // 确保多选下拉框的值是数组类型
            // if (currentConfig && currentConfig.multiple) {
            //     // 多选情况，确保值为数组类型
            //     this.formFields[key] = Array.isArray(val) ? val : (val ? [val] : []);
            // } else {
                // 单选情况
                this.formFields[key] = val;
            // }
            this.$emit("select", { key, value: val });
            // 清除该表单项的错误状态
            if (this.errors[key]) {
                this.$set(this.errors, key, false);
            }
        },
        //复制
        onCopy(config, key) {
            const { formFields } = this;
            if (config.copyFrom) {
                formFields[key] = formFields[config.copyFrom]
            }
        },
    },
}
</script>

<style lang="scss">
.grid-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    /* 默认2列 */
    gap: 0 20px;
}
.gap2{
    gap:0 64px;
}

.w-100 {
    width: 100%;
}

.form-item {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 12px 0 rgba(0, 0, 0, .1);
    margin-top: 20px;
    padding: 20px;
    border-radius: 5px 5px;

}

/* 或者使用 span 语法 */
.full-row {
    grid-column: span 2;
}
.three-row {
    grid-column: span 3;
}


.c-Item {
    &:not(:last-child) {
        margin-bottom: 16px;
    }
}
.eo{
      &:nth-child(even) {
        padding-left: 20px;
    }
    &:nth-child(odd) {
        padding-right: 20px;
    }
}
.default-placeholder-text{
    color: #C0C4CC;
}
.form-title {
    margin-bottom: 12px;
    font-size: 14px;
    font-weight: normal;
    color: #606266;
}
.step-form-title{
    font-size: 14px;
    font-weight: normal;
    color: #606266;
    width: 150px;
    text-align: right;
    padding-right: 10px;
}
.p-r-20{
    padding-right: 20px;
}
.p-l-20{
    padding-left: 20px;
}

.fs-16 {
    font-size: 0.96rem;
    font-weight: bold;
    color: #464647
}

.flex1 {
    flex: 1;
}

.flex {
    display: flex;
}
.other-title{
    width: 50px; 
    text-align: right;
    margin: 0 10px;
}
.mr-24 {
    margin-right: 24px;
}
.sub-select{
    width: 100px;
    margin-left: 10px;
}
.clickable{
    cursor: pointer;
    width: auto;
    margin-left: 10px;
    min-width: 100px;
    height: 28px;
    border-radius: 4px;
    border:1px solid #4ea2ff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: normal;
    color: #606266;
}

.orange-border {
    border-color: #f9c588;
}

.green-border {
    border-color: green;
}

.blue-border {
    border-color: #4ea2ff;
}
</style>