<template>
    <el-card shadow="always">
        <el-button type="primary" plain size="large" @click="goBack">返回</el-button>
        <span style="margin-left: 20px;">新增耗材</span>

    </el-card>
    <div class="add-or-edit-supplies-manage">
        <el-form ref="SuppliesManageFormRef" :model="form" :rules="rules" label-width="160px" style="padding: 20px;">

            <el-row :gutter="20">
                <el-col :span="12">
                    <el-form-item label="耗材名称：" prop="suppliesName">
                        <el-input v-model="form.suppliesName" placeholder="请输入" />
                    </el-form-item>
                </el-col>
                <el-col :span="12">
                    <el-form-item label="商品资质：" prop="productQualification">
                        <el-select v-model="form.productQualification" placeholder="请选择" clearable>
                            <el-option v-for="dict in product_qualification" :key="dict.value" :label="dict.label" :value="dict.value" />
                        </el-select>
                    </el-form-item>
                </el-col>
            </el-row>

            <el-row :gutter="20">
                <el-col :span="12">
                    <el-form-item label="商品编码：" prop="suppliesCode">
                        <el-input v-model="form.suppliesCode" placeholder="请输入" />
                    </el-form-item>
                </el-col>
                <el-col :span="12">
                    <el-form-item label="批准文号：" prop="approvalNumber">
                        <el-input v-model="form.approvalNumber" placeholder="请输入" />
                    </el-form-item>
                </el-col>
            </el-row>

            <el-row :gutter="20">
                <el-col :span="12">
                    <el-form-item label="院方系统编码：" prop="hospitalSystemCode">
                        <el-input v-model="form.hospitalSystemCode" placeholder="请输入" />
                    </el-form-item>
                </el-col>

                <el-col :span="12">
                    <el-form-item label="所属分类：" prop="suppliesCategoryList">
                        <el-cascader v-model="form.suppliesCategoryList" :options="categoryOptions" :props="{ 
                                checkStrictly: true, 
                                emitPath: true, 
                                value: 'value', 
                                label: 'label', 
                                children: 'children' 
                            }" placeholder="请选择" clearable filterable style="width: 100%" @change="handleCategoryChange" />
                    </el-form-item>
                </el-col>
            </el-row>

            <el-row :gutter="20">
                <el-col :span="12">
                    <el-form-item label="生产厂商：" prop="manufacturer">
                        <el-select v-model="form.manufacturer" placeholder="请选择" clearable>
                            <el-option v-for="dict in product_manufacturer" :key="dict.value" :label="dict.label" :value="dict.value" />
                        </el-select>
                    </el-form-item>
                </el-col>
                <el-col :span="12">
                    <el-form-item label="保质期临期提醒：" prop="shelfLifeReminder">
                        <el-input v-model="form.shelfLifeReminder" placeholder="请输入">
                            <template #append>个月</template>
                        </el-input>
                    </el-form-item>
                </el-col>

            </el-row>

            <el-row :gutter="20">
                <el-col :span="12">
                    <el-form-item label="供应商：" prop="supplier">
                        <el-select v-model="form.supplier" placeholder="请选择" clearable>
                            <el-option v-for="dict in product_supplier" :key="dict.value" :label="dict.label" :value="dict.value" />
                        </el-select>
                    </el-form-item>
                </el-col>
                <el-col :span="12">
                    <el-form-item label="品牌：" prop="brand">
                        <el-input v-model="form.brand" placeholder="请输入" />
                    </el-form-item>
                </el-col>

            </el-row>
            <el-row :gutter="20">
                <el-col :span="12">
                    <el-form-item label="许可证有效期提醒：" prop="licenseExpiryReminder">
                        <el-input v-model="form.licenseExpiryReminder" placeholder="请输入">
                            <template #append>个月</template>
                        </el-input>
                    </el-form-item>
                </el-col>

                <el-col :span="12">
                    <el-form-item label="产品所属标签：" prop="productLabel">
                        <el-select v-model="form.productLabelList" multiple placeholder="请选择" style="width: 100%;" :disabled="true" @click="labelDialogVisible = true" class="custom-label-select" value-key="labelId">
                            <el-option v-for="item in form.productLabelList" :key="item.labelId" :label="item.labelName" :value="item">
                                <el-tag type="info" size="small">{{ item.labelName }}</el-tag>
                            </el-option>
                        </el-select>
                    </el-form-item>
                </el-col>

            </el-row>
            <el-row :gutter="20">
                <el-col :span="12">
                    <el-form-item label="商品许可证有效期至：" prop="productLicenseExpiry">
                        <el-date-picker v-model="form.productLicenseExpiry" type="date" placeholder="选择一天" value-format="YYYY-MM-DD" />
                    </el-form-item>
                </el-col>
                <el-col :span="12">
                    <el-form-item label="产品适用科室：" prop="applicableDepartment">
                        <el-cascader v-model="form.applicableDepartmentList" :options="deptList" :props="{
                                            multiple: true,checkStrictly: true, // 允许任意层级选择emitPath: false,     // 只返回选中节点的 value 
                                            value: 'deptId',label: 'deptName',children: 'children'
                                           }" placeholder="请选择" clearable style="width: 100%" />
                    </el-form-item>
                </el-col>
            </el-row>

            <el-row :gutter="20">

                <el-col :span="12">
                    <el-form-item label="保质期：" prop="shelfLife">
                        <el-input v-model="form.shelfLife" placeholder="请输入">
                            <template #append>个月</template>
                        </el-input>
                    </el-form-item>
                </el-col>
            </el-row>

            <el-divider content-position="left">入货信息:</el-divider>
            <el-row :gutter="20">
                <el-col :span="12">
                    <el-form-item label="入货价格：" prop="purchasePrice" required>
                        <el-input v-model="form.purchasePrice" placeholder="请输入">
                            <template #append>元</template>
                        </el-input>
                    </el-form-item>
                </el-col>

                <el-col :span="12">
                    <el-form-item label="销售价格：" prop="sellPrice" required>
                        <el-input v-model="form.sellPrice" placeholder="请输入">
                            <template #append>元/{{getDictLabel(product_package_unit ,form.suppliesUnit )|| '--' }}</template>
                        </el-input>
                    </el-form-item>
                </el-col>
            </el-row>

            <el-row :gutter="20">
                <el-col :span="12">
                    <el-form-item label="耗材单位：" prop="suppliesUnit" required>
                        <el-select v-model="form.suppliesUnit" placeholder="请选择" clearable>
                            <el-option v-for="dict in product_package_unit" :key="dict.value" :label="dict.label" :value="dict.value" />
                        </el-select>
                    </el-form-item>
                </el-col>
                <el-col :span="12">
                    <el-form-item label="耗材规格：" prop="suppliesSpec" required>
                        <div class="spec-input-group">
                            <el-input v-model="form.suppliesSpec" placeholder="请输入" style="width: 320px;" :maxlength="10" />
                            <el-select v-model="form.suppliesSpecUnit" class="spec-unit-select">
                                <el-option v-for="dict in product_spec_unit" :key="dict.value" :label="dict.label" :value="dict.value" />
                            </el-select>
                            <span class="spec-unit-text">/{{getDictLabel(product_package_unit ,form.suppliesUnit )|| '--' }}</span>
                        </div>
                    </el-form-item>

                </el-col>
            </el-row>
            <div class="dialog-footer" style="text-align:center;margin-top:32px;">
                <el-button type="primary" @click="submitForm">保存</el-button>
                <el-button type="primary" @click="submitFormAndPutaway">保存并上架</el-button>
            </div>
        </el-form>
        <LabelDialog v-model="labelDialogVisible" :initial-selected-labels="form.productLabelList || []" @confirm="onLabelConfirm" />
    </div>
</template>

<script setup lang="ts">
    import { ref, reactive, onMounted, getCurrentInstance, type ComponentInternalInstance } from 'vue';
    import { useRouter, useRoute } from 'vue-router';
    import { addSuppliesManage, updateSuppliesManage, getSuppliesManage } from '@/api/warehouse/suppliesManage/index';
    import { SuppliesManageForm } from '@/api/warehouse/suppliesManage/types';
    import { listSuppliesCategory } from '@/api/warehouse/suppliesCategory/index';
    import { listDept } from '@/api/system/dept';
    import { toRefs } from 'vue';
    import LabelDialog from '@/views/warehouse/nutriProduct/labelDialog.vue';

    const { proxy } = getCurrentInstance() as ComponentInternalInstance;
    const { product_qualification, product_package_unit, product_supplier, put_flag, product_manufacturer, product_spec_unit } = toRefs < any > (proxy ?.useDict('product_qualification', 'product_package_unit', 'product_supplier', 'put_flag', 'product_manufacturer', 'product_spec_unit'));

    const loading = ref(true);
    const router = useRouter();
    const route = useRoute();
    const buttonLoading = ref(false);
    const SuppliesManageFormRef = ref();
    const labelDialogVisible = ref(false);


    // 选项数据
    const categoryOptions = ref < any[] > ([]);
    const deptList = ref < any[] > ([]);
    const unit_options = ref < any[] > ([{ label: '个', value: '1' }]); // TODO: 替换为实际数据


    const rules = {
        suppliesName: [{ required: true, message: '耗材名称不能为空', trigger: 'blur' }],
        hospitalSystemCode: [{ required: true, message: "院方系统编码不能为空", trigger: "blur" }],
        shelfLifeReminder: [{ required: true, message: "保质期临期提醒不能为空", trigger: "blur" }],
        productQualification: [{ required: true, message: "商品资质不能为空", trigger: "blur" }],
        suppliesCode: [{ required: true, message: '商品编码不能为空', trigger: 'blur' }],
        shelfLife: [{ required: true, message: '保质期不能为空', trigger: 'blur' }],
        suppliesCategoryList: [{ required: true, message: '所属分类不能为空', trigger: 'change' }],
        purchasePrice: [{ required: true, message: '入货价格不能为空', trigger: 'blur' }],
        suppliesUnit: [{ required: true, message: '耗材单位不能为空', trigger: 'change' }],
        suppliesSpec: [{ required: true, message: '耗材规格不能为空', trigger: 'blur' }],
        sellPrice: [{ required: true, message: '销售价格不能为空', trigger: 'blur' }]
    };

    const form = reactive < SuppliesManageForm > ({
        id: undefined,
        suppliesName: undefined,
        hospitalSystemCode: undefined,
        suppliesCode: undefined,
        manufacturer: undefined,
        supplier: undefined,
        licenseExpiryReminder: undefined,
        shelfLife: undefined,
        productQualification: undefined,
        approvalNumber: undefined,
        suppliesCategoryList: [],
        shelfLifeReminder: undefined,
        brand: undefined,
        productLabel: undefined,
        productLabelList: [],
        applicableDepartment: undefined,
        applicableDepartmentList: [],
        purchasePrice: undefined,
        suppliesUnit: '2',
        sellPrice: undefined,
        suppliesSpec: undefined,
        suppliesSpecUnit: '1',
        putFlag: undefined
    });

    const getCategoryName = (categoryIds) => {
        if (!categoryIds) return '--';

        // 处理多个分类ID的情况
        const ids = categoryIds.toString().split(',');
        const categoryNames = ids.map(id => {
            const findCategory = (categories, targetId) => {
                for (const category of categories) {
                    if (category.value.toString() === targetId.toString()) {
                        return category.label;
                    }
                    if (category.children) {
                        const found = findCategory(category.children, targetId);
                        if (found) return found;
                    }
                }
                return null;
            };
            return findCategory(categoryOptions.value, id);
        }).filter(name => name !== null);

        return categoryNames.length > 0 ? categoryNames.join('/') : '--';
    };
    const getDeptList = async () => {
        loading.value = true;
        try {
            const res = await listDept({
                pageNum: 1,
                pageSize: 999
            });
            if (!res.data) {
                console.warn("部门数据为空");
                deptList.value = [];
                return;
            }

            // 处理树形数据
            const processedData = proxy ?.handleTree(res.data, 'deptId');
            if (!processedData) {
                console.warn("树形数据处理失败");
                deptList.value = [];
                return;
            }

            deptList.value = processedData;

        } catch (error) {
            console.error('获取部门列表失败:', error);
            deptList.value = [];
        } finally {
            loading.value = false;
        }
    };


    // 构建分类树
    function buildCategoryTree(flatList: any[]) {
        const idMap: Record < string, any > = {};
        const tree = [];

        flatList.forEach(item => {
            idMap[item.categoryId] = {
                label: item.categoryName,
                value: item.categoryId,
                children: []
            };
        });

        flatList.forEach(item => {
            if (item.parentId && item.parentId !== 0 && idMap[item.parentId]) {
                idMap[item.parentId].children.push(idMap[item.categoryId]);
            } else if (item.parentId === 0) {
                tree.push(idMap[item.categoryId]);
            }
        });

        // 去除没有children的children字段
        function clean(node: any) {
            if (node.children && node.children.length === 0) {
                delete node.children;
            } else if (node.children) {
                node.children.forEach(clean);
            }
        }
        tree.forEach(clean);
        return tree;
    }
    // 标签确认回调
    function onLabelConfirm(selectedLabels: Array < { labelId: string | number;labelName: string } > ) {
        form.productLabelList = selectedLabels;
    }

    // 字典label工具
    function getDictLabel(dictList: any[], value: string) {
        if (!dictList || !Array.isArray(dictList)) return value || '--';
        const found = dictList.find(item => item.value === value);
        return found ? found.label : value || '--';
    }

    // 判断是新增还是编辑
    const id = route.params.id;
    if (id) {
        // 编辑，获取详情
        getSuppliesManage(id.toString()).then(res => {
            Object.assign(form, res.data);
            // 如果有分类ID，需要设置级联选择器的值
            if (res.data.suppliesCategoryId) {
                // 这里需要根据后端返回的数据结构调整
                form.suppliesCategoryList = [res.data.suppliesCategoryId];
            }
        });
    }

    // 初始化数据
    onMounted(async () => {
        getDeptList(); // 初始化时加载部门数据
        const res = await listSuppliesCategory();
        categoryOptions.value = buildCategoryTree(res.rows || []);
    });

    // 添加分类选择处理函数
    const handleCategoryChange = (value: any[]) => {
        if (value && value.length > 0) {
            form.suppliesCategoryId = value[value.length - 1];
        } else {
            form.suppliesCategoryId = undefined;
        }
    };

    // 修改提交函数
    function submitForm() {
        SuppliesManageFormRef.value ?.validate(async (valid: boolean) => {
            if (valid) {
                buttonLoading.value = true;
                try {
                    // 确保设置了 suppliesCategoryId
                    if (form.suppliesCategoryList && form.suppliesCategoryList.length > 0) {
                        form.suppliesCategoryId = form.suppliesCategoryList[form.suppliesCategoryList.length - 1];
                    }

                    if (form.id) {
                        await updateSuppliesManage(form);
                    } else {
                        await addSuppliesManage(form);
                    }
                    proxy ?.$modal.msgSuccess('操作成功');
                    goToList();
                } catch (error) {
                    console.error('提交失败:', error);
                    proxy ?.$modal.msgError('操作失败');
                } finally {
                    buttonLoading.value = false;
                }
            }
        });
    }

    /** 保存并上架按钮操作 */
    const submitFormAndPutaway = () => {
        SuppliesManageFormRef.value ?.validate(async (valid: boolean) => {
            if (valid) {
                buttonLoading.value = true;
                try {
                    form.putFlag = '1';
                    if (form.id) {
                        await updateSuppliesManage(form);
                    } else {
                        await addSuppliesManage(form);
                    }
                    proxy ?.$modal.msgSuccess('操作成功');
                    goToList();
                } catch (error) {
                    console.error('提交失败:', error);
                    proxy ?.$modal.msgError('操作失败');
                } finally {
                    buttonLoading.value = false;
                }
            }
        });
    };

    // 返回按钮
    const goBack = () => {
        router.back();
    };

    // 统一的列表页跳转函数
    const goToList = () => {
        router.push('/warehouse/suppliesManage');
    };
</script>

<style scoped>
    .add-or-edit-supplies-manage {
        padding: 20px;
        background-color: #fff;
    }

    .el-form {
        max-width: 1200px;
        margin: 0 auto;
    }

    .el-row {
        margin-bottom: 20px;
    }

    :deep(.el-form-item__label) {
        font-weight: 500;
    }

    :deep(.el-input-group__append) {
        padding: 0 15px;
    }

    .custom-label-select :deep(.el-select__tags) {
        max-width: calc(100% - 30px);
    }

    .spec-input-group {
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .spec-unit-select {
        width: 80px;
    }

    .spec-unit-text {
        color: #606266;
        font-size: 14px;
        white-space: nowrap;
    }
</style>