<template>
    <div class="app-container">
        <el-card class="box-card">
            <h3>商品介绍</h3>
            <el-form ref="goodsRef" :rules="rules" :model="goods" label-width="150px">
                <el-form-item label="商品编号" prop="goodsSn">
                    <el-input v-model="goods.goodsSn" />
                </el-form-item>
                <el-form-item label="商品名称" prop="name">
                    <el-input v-model="goods.name" />
                </el-form-item>
                <el-form-item label="市场售价" prop="counterPrice">
                    <el-input v-model="goods.counterPrice" placeholder="0.00">
                        <template slot="append">元</template>
                    </el-input>
                </el-form-item>
                <el-form-item label="是否新品">
                    <el-radio-group v-model="goods.isNew">
                        <el-radio :label="true">新品</el-radio>
                        <el-radio :label="false">非新品</el-radio>
                    </el-radio-group>
                </el-form-item>
                <el-form-item label="是否热卖">
                    <el-radio-group v-model="goods.isHot">
                        <el-radio :label="false">普通</el-radio>
                        <el-radio :label="true">热卖</el-radio>
                    </el-radio-group>
                </el-form-item>
                <el-form-item label="是否在售">
                    <el-radio-group v-model="goods.isOnSale">
                        <el-radio :label="true">在售</el-radio>
                        <el-radio :label="false">未售</el-radio>
                    </el-radio-group>
                </el-form-item>

                <el-form-item label="商品图片">
                    <el-upload :action="uploadPath" :show-file-list="false" :headers="headers"
                        :on-success="uploadPicUrl" class="avatar-uploader" accept=".jpg,.jpeg,.png,.gif">
                        <img v-if="goods.picUrl" :src="goods.picUrl" class="avatar" />
                        <!-- <img v-if="goods.picUrl" :src="'http://192.168.0.23' + goods.picUrl" class="avatar" /> -->
                        <el-icon v-else class="avatar-uploader-icon">
                            <Plus />
                        </el-icon>
                    </el-upload>
                </el-form-item>

                <el-form-item label="宣传画廊">
                    <el-upload :action="uploadPath" :limit="5" :headers="headers" :on-exceed="uploadOverrun"
                        :on-success="handleGalleryUrl" :on-remove="handleRemove" multiple accept=".jpg,.jpeg,.png,.gif"
                        list-type="picture-card">
                        <el-icon class="avatar-uploader-icon">
                            <Plus />
                        </el-icon>
                    </el-upload>
                </el-form-item>

                <el-form-item label="商品单位">
                    <el-input v-model="goods.unit" placeholder="件 / 个 / 盒" />
                </el-form-item>

                <el-form-item label="关键字">
                    <el-tag v-for="tag in keywords" :key="tag" closable type="primary" @close="handleClose(tag)">
                        {{ tag }}
                    </el-tag>
                    <el-input v-if="newKeywordVisible" ref="newKeywordInput" v-model="newKeyword"
                        class="input-new-keyword" @keyup.enter.native="handleInputConfirm" @blur="handleInputConfirm" />
                    <el-button v-else class="button-new-keyword" type="primary" @click="showInput">+ 增加</el-button>
                </el-form-item>

                <el-form-item label="商品配件">
                    <el-select v-model="goods.parts" multiple collapse-tags collapse-tags-tooltip style="width: 240px">
                        <el-option v-for="item in partsList" :key="item.id" :label="item.name" :value="item.id" />
                    </el-select>
                </el-form-item>

                <!-- <el-form-item label="商品配件">
                    <el-tag v-for="tag in parts" :key="tag" closable type="primary" @close="handlePartsClose(tag)">
                        {{ tag }}
                    </el-tag>
                    <el-input v-if="newPartsVisible" ref="newKeywordInput" v-model="newPart" class="input-new-keyword"
                        @keyup.enter.native="handlePartsConfirm" @blur="handlePartsConfirm" />
                    <el-button v-else class="button-new-keyword" type="primary" @click="showPartsInput">+ 增加</el-button>
                </el-form-item> -->

                <el-form-item label="所属分类">
                    <el-cascader v-model="categoryIds" :options="categoryList" expand-trigger="hover" clearable
                        @change="handleCategoryChange" />
                </el-form-item>

                <el-form-item label="所属品牌商">
                    <el-select v-model="goods.brandId" clearable>
                        <el-option v-for="item in brandList" :key="item.value" :label="item.label"
                            :value="item.value" />
                    </el-select>
                </el-form-item>

                <el-form-item label="商品简介">
                    <el-input v-model="goods.brief" />
                </el-form-item>

                <el-form-item label="商品详细介绍">
                    <!-- <editor v-model="goods.detail" :init="editorInit" /> -->
                    <richTextEditor :valueHtml='goods.detail' @htmlChange="htmlChange" />
                </el-form-item>
            </el-form>
        </el-card>

        <el-card class="box-card">
            <h3>商品规格</h3>
            <el-row :gutter="20" type="flex" align="middle" style="padding: 20px 0">
                <el-col :span="10">
                    <el-radio-group v-model="multipleSpec" @change="specChanged">
                        <!-- <el-radio-button :label="false">默认标准规格</el-radio-button> -->
                        <el-radio-button :label="false">多规格支持</el-radio-button>
                    </el-radio-group>
                </el-col>
                <el-col v-if="multipleSpec" :span="10">
                    <el-button :plain="true" type="primary" @click="handleSpecificationShow">添加</el-button>
                </el-col>
            </el-row>

            <el-table :data="specifications">
                <el-table-column property="specification" label="规格名" />
                <el-table-column property="value" label="规格值">
                    <template #default="scope">
                        <el-tag type="primary">
                            {{ scope.row.value }}
                        </el-tag>
                    </template>
                </el-table-column>
                <el-table-column property="picUrl" label="规格图片">
                    <template #default="scope">
                        <img v-if="scope.row.picUrl" :src="scope.row.picUrl" width="40" />
                    </template>
                </el-table-column>
                <el-table-column v-if="multipleSpec" align="center" label="操作" width="250"
                    class-name="small-padding fixed-width">
                    <template #default="scope">
                        <el-button type="danger" size="small" @click="handleSpecificationDelete(scope.row)">删除
                        </el-button>
                    </template>
                </el-table-column>
            </el-table>

            <el-dialog v-model="specVisiable" title="设置规格">
                <el-form ref="specRef" :rules="rules" :model="specForm" status-icon label-position="left"
                    label-width="100px" style="width: 400px; margin-left: 50px">
                    <el-form-item label="规格名" prop="specification">
                        <el-input v-model="specForm.specification" />
                    </el-form-item>
                    <el-form-item label="规格值" prop="value">
                        <el-input v-model="specForm.value" />
                    </el-form-item>
                    <el-form-item label="规格图片" prop="picUrl">
                        <el-upload :action="uploadPath" :show-file-list="false" :headers="headers"
                            :on-success="uploadSpecPicUrl" class="avatar-uploader" accept=".jpg,.jpeg,.png,.gif">
                            <img v-if="specForm.picUrl" :src="specForm.picUrl" class="avatar" />
                            <i v-else class="el-icon-plus avatar-uploader-icon" />
                        </el-upload>
                    </el-form-item>
                </el-form>
                <template #footer class="dialog-footer">
                    <el-button @click="specVisiable = false">取消</el-button>
                    <el-button type="primary" @click="handleSpecificationAdd">确定</el-button>
                </template>
            </el-dialog>
        </el-card>

        <!-- <el-card class="box-card">
            <h3>商品库存</h3>
            <el-table :data="products">
                <el-table-column property="value" label="货品规格">
                    <template #default="scope">
                        <el-tag v-for="tag in scope.row.specifications" :key="tag">
                            {{ tag }}
                        </el-tag>
                    </template>
                </el-table-column>
                <el-table-column property="price" width="100" label="货品售价" />
                <el-table-column property="number" width="100" label="货品数量" />
                <el-table-column property="url" width="100" label="货品图片">
                    <template #default="scope">
                        <img v-if="scope.row.url" :src="scope.row.url" width="40" />
                    </template>
                </el-table-column>
                <el-table-column align="center" label="操作" width="100" class-name="small-padding fixed-width">
                    <template #default="scope">
                        <el-button type="primary" size="small" @click="handleProductShow(scope.row)">设置</el-button>
                    </template>
                </el-table-column>
            </el-table>

            <el-dialog v-model="productVisiable" title="添加货品">
                <el-form ref="productRef" :model="productForm" status-icon label-position="left" label-width="100px"
                    style="width: 400px; margin-left: 50px">
                    <el-form-item label="货品规格列" prop="specifications">
                        <el-tag v-for="tag in productForm.specifications" :key="tag">
                            {{ tag }}
                        </el-tag>
                    </el-form-item>
                    <el-form-item label="货品售价" prop="price">
                        <el-input v-model="productForm.price" />
                    </el-form-item>
                    <el-form-item label="货品数量" prop="number">
                        <el-input v-model="productForm.number" />
                    </el-form-item>
                    <el-form-item label="货品图片" prop="url">
                        <el-upload :action="uploadPath" :show-file-list="false" :headers="headers"
                            :on-success="uploadProductUrl" class="avatar-uploader" accept=".jpg,.jpeg,.png,.gif">
                            <img v-if="productForm.url" :src="productForm.url" class="avatar" />
                            <i v-else class="el-icon-plus avatar-uploader-icon" />
                        </el-upload>
                    </el-form-item>
                </el-form>
                <template #footer class="dialog-footer">
                    <el-button @click="productVisiable = false">取消</el-button>
                    <el-button type="primary" @click="handleProductEdit">确定</el-button>
                </template>
            </el-dialog>
        </el-card> -->

        <el-card class="box-card">
            <h3>商品参数</h3>
            <el-button type="primary" @click="handleAttributeShow">添加</el-button>
            <el-table :data="attributes">
                <el-table-column property="attribute" label="商品参数名称" />
                <el-table-column property="value" label="商品参数值" />
                <el-table-column align="center" label="操作" width="100" class-name="small-padding fixed-width">
                    <template #default="scope">
                        <el-button type="danger" size="small" @click="handleAttributeDelete(scope.row)">删除</el-button>
                    </template>
                </el-table-column>
            </el-table>

            <el-dialog v-model="attributeVisiable" title="添加商品参数">
                <el-form ref="attributeRef" :model="attributeForm" status-icon label-position="left" label-width="100px"
                    style="width: 400px; margin-left: 50px">
                    <el-form-item label="商品参数名称" prop="attribute">
                        <el-input v-model="attributeForm.attribute" />
                    </el-form-item>
                    <el-form-item label="商品参数值" prop="value">
                        <el-input v-model="attributeForm.value" />
                    </el-form-item>
                </el-form>
                <template #footer class="dialog-footer">
                    <el-button @click="attributeVisiable = false">取消</el-button>
                    <el-button type="primary" @click="handleAttributeAdd">确定</el-button>
                </template>
            </el-dialog>
        </el-card>

        <div class="op-container">
            <el-button @click="handleCancel">取消</el-button>
            <el-button type="primary" @click="handleEdit">更新商品</el-button>
        </div>
    </div>
</template>

<script setup lang="ts">
import { ref, computed, nextTick } from "vue";
import { detailGoods, editGoods, listCatAndBrand } from "@/services/api/commodityManage/list";
import { uploadPath } from "@/services/api/storage";
import { ElMessageBox, ElMessage, ElNotification } from "element-plus";
import richTextEditor from '@/components/richTextEditor.vue'
import router from '@/router'
import { listGoods } from "@/services/api/commodityManage/list";

let route: any = router
let newKeywordVisible = ref(false);
let newPartsVisible = ref(false);
let newKeyword = ref("");
let keywords = ref([] as any);
let parts = ref([] as any);
let newPart = ref("");
let galleryFileList = ref([] as any);
let categoryIds = ref([] as any);
let categoryList = ref([] as any);
let brandList = ref([] as any);
let goods = ref({
    goodsSn: "",
    name: "",
    counterPrice: "",
    gallery: [] as any,
    isHot: false,
    isNew: true,
    isOnSale: true,
    picUrl: "",
    unit: "",
    brandId: "",
    brief: "",
    detail: '<p>你好啊！！</p>',
    categoryId: undefined,
    keywords: undefined,
    parts: undefined
} as any);
let specVisiable = ref(false);
let specForm = ref({ specification: "", value: "", picUrl: "" } as any);
let multipleSpec = ref(false);
let specifications = ref([] as any);
let productVisiable = ref(false);
let productForm = ref({
    id: 0,
    specifications: [],
    price: 0.0,
    number: 0,
    url: "",
});
let goodsId = ref(route.options.history.location.split('=')[1])
let products = ref([
    { id: 0, specifications: ["标准"], price: 0.0, number: 0, url: "" },
]);
let attributeVisiable = ref(false);
let attributeForm = ref({ attribute: "", value: "" } as any);
let attributes = ref([] as any);
let rules = ref({
    goodsSn: [{ required: true, message: "商品编号不能为空", trigger: "blur" }],
    name: [{ required: true, message: "商品名称不能为空", trigger: "blur" }],
});

let headers = computed(() => {
    return { Authorization: sessionStorage.getItem("token") };
});

let partsList = ref()
let initList = () => {
    listGoods({
        page: 1,
        limit: 10,
        sort: "add_time",
        order: "desc",
    }).then((res: any) => {
        if (res.code === 200) {
            partsList.value = res.data.list;
        }
    })
}
initList()
let init = () => {
    // if (route.options.history.location.split('=').length > 1) {
    //     var goodsId = route.options.history.location.split('=')[1]
    // }
    // else return

    detailGoods(goodsId.value).then((res) => {
        goods.value = res.data.goods;
        console.log(goods.value);

        // 稍微调整一下前后端不一致
        if (goods.value?.brandId === 0) {
            goods.value!.brandId = null;
        }
        if (goods.value?.keywords === "") {
            goods.value!.keywords = null;
        }
        specifications.value = res.data.specifications;
        products.value = res.data.products;
        attributes.value = res.data.attributes;
        categoryIds.value = res.data.categoryIds;

        galleryFileList.value = [];
        for (var i = 0; i < goods.value?.gallery.length; i++) {
            galleryFileList.value.push({
                url: goods.value?.gallery[i],
            });
        }
        const keyword: any = res.data.goods.keywords;
        if (keyword !== null) {
            keywords.value = keyword.split(",");
        }
    });

    listCatAndBrand().then((res: any) => {
        categoryList.value = res.data.categoryList;
        brandList.value = res.data.brandList;
    });
}
init()

let htmlChange = (value: any) => goods.value.detail = value


let handleCategoryChange = (value: any) => {
    goods.value.categoryId = value[value.length - 1];
}
let handleCancel = () => {
    route.push({ path: "/commodity/list" });
}
let handleEdit = () => {
    const finalGoods = {
        goods: goods.value,
        specifications: specifications.value,
        products: products.value,
        attributes: attributes.value,
    };
    editGoods(finalGoods)
        .then((res: any) => {
            ElNotification({
                type: 'success',
                title: "成功",
                message: "编辑成功",
            });
            router.push({ path: "/commodity/list" });
        })
        .catch((res: any) => {
            ElMessageBox.alert("业务错误：" + res.data.errmsg, "警告", {
                confirmButtonText: "确定",
                type: "error",
            });
        });
}
let handleClose = (tag: any) => {
    keywords.value.splice(keywords.value.indexOf(tag), 1);
    goods.value.keywords = keywords.value.toString();

}
let handlePartsClose = (tag: any) => {
    parts.value.splice(parts.value.indexOf(tag), 1);
    goods.value.parts = keywords.value.toString();
}
let showInput = () => {
    newKeywordVisible.value = true;
}
let showPartsInput = () => {
    newPartsVisible.value = true;
}
let handleInputConfirm = () => {
    const newKeywords: string = newKeyword.value;
    if (newKeywords) {
        keywords.value.push(newKeywords);
        goods.value.keywords = keywords.value.toString();
    }
    newKeywordVisible.value = false;
    newKeyword.value = "";
}
let handlePartsConfirm = () => {
    const newParts: string = newPart.value;
    if (newParts) {
        parts.value.push(newParts);
        goods.value.parts = parts.value.toString();
    }
    newPartsVisible.value = false;
    newPart.value = "";
}
let uploadPicUrl = (res: any) => {
    goods.value.picUrl = res.data.url;
}
let uploadOverrun = () => {
    ElMessage({
        type: "error",
        message: "上传文件个数超出限制!最多上传5张图片!",
    });
}
let handleGalleryUrl = (res: any, file: any, fileList: any) => {
    // if (res.errno === 0) {
    goods.value.gallery.push(res.data.url);
    // }
}
let handleRemove = (file: any, fileList: any) => {
    for (let i = 0; i < goods.value.gallery.length; i++) {
        // 这里存在两种情况
        // 1. 如果所删除图片是刚刚上传的图片，那么图片地址是file.res.data.url
        //    此时的file.url虽然存在，但是是本机地址，而不是远程地址。
        // 2. 如果所删除图片是后台返回的已有图片，那么图片地址是file.url
        let url;
        if (file.res === undefined) {
            url = file.url;
        } else {
            url = file.res.data.url;
        }

        if (goods.value.gallery[i] === url) {
            goods.value.gallery.splice(i, 1);
        }
    }
}
let specChanged = (label: any) => {
    if (label === false) {
        specifications.value = [
            { specification: "规格", value: "标准", picUrl: "" },
        ];
        products.value = [
            { id: 0, specifications: ["标准"], price: 0.0, number: 0, url: "" },
        ];
    } else {
        specifications.value = [];
        products.value = [];
    }
}
let uploadSpecPicUrl = (res: any) => {
    specForm.value.picUrl = res.data.url;
}
let handleSpecificationShow = () => {
    specForm.value = { specification: "", value: "", picUrl: "" };
    specVisiable.value = true;
}
let handleSpecificationAdd = () => {
    let index = specifications.value.length - 1;
    for (let i = 0; i < specifications.value.length; i++) {
        const v = specifications.value[i];
        if (v.specification === specForm.value.specification) {
            if (v.value === specForm.value) {
                ElMessage({
                    type: "warning",
                    message: "已经存在规格值:" + v.value,
                });
                specForm.value = {};
                specVisiable.value = false;
                return;
            } else {
                index = i;
            }
        }
    }

    specifications.value.splice(index + 1, 0, specForm);
    specVisiable.value = false;

    specToProduct();
}
let handleSpecificationDelete = (row: any) => {
    const index = specifications.value.indexOf(row);
    specifications.value.splice(index, 1);
    specToProduct();
}
let specToProduct = () => {
    if (specifications.value.length === 0) {
        return;
    }
    // 根据specifications创建临时规格列表
    let specValues = [];
    let spec = specifications.value[0].specification;
    let values = [];
    values.push(0);

    for (let i = 1; i < specifications.value.length; i++) {
        const aspec = specifications.value[i].specification;

        if (aspec === spec) {
            values.push(i);
        } else {
            specValues.push(values);
            spec = aspec;
            values = [];
            values.push(i);
        }
    }
    specValues.push(values);

    // 根据临时规格列表生产货品规格
    // 算法基于 https://blog.csdn.net/tyhj_sf/article/details/53893125
    let productsIndex = 0;
    let products = [];
    let combination = [];
    let n = specValues.length;
    for (let s = 0; s < n; s++) {
        combination[s] = 0;
    }
    let index = 0;
    let isContinue = false;
    do {
        let specifications = [] as any;
        for (let x = 0; x < n; x++) {
            let z = specValues[x][combination[x]];
            specifications.push(specifications[z]);
        }
        products[productsIndex] = {
            id: productsIndex,
            specifications: specifications,
            price: 0.0,
            number: 0,
            url: "",
        };
        productsIndex++;

        index++;
        combination[n - 1] = index;
        for (let j = n - 1; j >= 0; j--) {
            if (combination[j] >= specValues[j].length) {
                combination[j] = 0;
                index = 0;
                if (j - 1 >= 0) {
                    combination[j - 1] = combination[j - 1] + 1;
                }
            }
        }
        isContinue = false;
        for (let p = 0; p < n; p++) {
            if (combination[p] !== 0) {
                isContinue = true;
            }
        }
    } while (isContinue);

    products = products;
}
let handleProductShow = (row: any) => {
    productForm = Object.assign({}, row);
    productVisiable.value = true;
}
let uploadProductUrl = (res: any) => {
    productForm.value.url = res.data.url;
}
let handleProductEdit = () => {
    for (let i = 0; i < products.value.length; i++) {
        const v = products.value[i];
        if (v.id === productForm.value.id) {
            products.value.splice(i, 1, productForm.value);
            break;
        }
    }
    productVisiable.value = false;
}
let handleAttributeShow = () => {
    attributeForm.value = {};
    attributeVisiable.value = true;
}
let handleAttributeAdd = () => {
    attributes.value.unshift(attributeForm.value);
    attributeVisiable.value = false;
}
let handleAttributeDelete = (row: any) => {
    const index = attributes.value.indexOf(row);
    attributes.value.splice(index, 1);
}
</script>

<style>
.el-card {
    margin-bottom: 10px;
}

.el-tag+.el-tag {
    margin-left: 10px;
}

.input-new-keyword {
    width: 90px;
    margin-left: 10px;
    vertical-align: bottom;
}

.avatar-uploader .el-upload {
    width: 145px;
    height: 145px;
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.avatar-uploader .el-upload:hover {
    border-color: #20a0ff;
}

.avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 120px;
    height: 120px;
    line-height: 120px;
    text-align: center;
}

.avatar {
    width: 145px;
    height: 145px;
    display: block;
}

.op-container {
    display: flex;
    justify-content: center;
}
</style>