<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="商品名称" prop="commName">
        <el-input
          v-model="queryParams.commName"
          placeholder="请输入商品名称"
          clearable
          @keyup.enter.native="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['commSys:comm:add']"
        >新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="success"
          plain
          icon="el-icon-edit"
          size="mini"
          :disabled="single"
          @click="handleUpdate"
          v-hasPermi="['commSys:comm:edit']"
        >修改</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['commSys:comm:remove']"
        >删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="warning"
          plain
          icon="el-icon-download"
          size="mini"
          @click="handleExport"
          v-hasPermi="['commSys:comm:export']"
        >导出</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          :type="filterExpired ? 'danger' : 'danger'"
          :plain="!filterExpired"
          icon="el-icon-warning"
          size="mini"
          @click="toggleExpiredFilter"
          v-hasPermi="['commSys:comm:filter']"
        >{{ filterExpired ? '取消筛选' : '筛选过期' }}</el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <div v-if="filterExpired" class="filter-notice">
      当前显示过期商品共 {{ displayedCommList.length }} 条
    </div>

    <el-table v-loading="loading" :data="displayedCommList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="主键" align="center" prop="commId" />
      <el-table-column label="商品名称" align="center" prop="commName" />
      <el-table-column label="商品图片" align="center" width="120">
        <template slot-scope="scope">
          <img
            :src="getImageUrl(scope.row.commImage)"
            alt="商品图片"
            class="comm-image"
            @error="handleImageError(scope.$index)"
          />
        </template>
      </el-table-column>
      <el-table-column label="规格(净含量)" align="center" prop="unit" />
      
      <el-table-column label="商品价格" align="center" width="120">
        <template slot-scope="scope">
          <span class="price-display">¥{{ parseFloat(scope.row.price).toFixed(2) }}</span>
        </template>
      </el-table-column>

      <el-table-column label="保质期" align="center" width="110">
        <template slot-scope="scope">
          <div class="expiration-display">
            <span class="days">{{ scope.row.exp }}</span>
            <span class="unit">个月</span>
          </div>
        </template>
      </el-table-column>

      <el-table-column label="商品类型" align="center" width="150">
        <template slot-scope="scope">
          <el-tag 
            :type="getClassTagType(scope.row.classId)"
            effect="plain"
            class="type-tag"
          >
            {{ getClassName(scope.row.classId) }}
          </el-tag>
        </template>
      </el-table-column>

      <el-table-column label="生产日期" align="center" prop="pd" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.pd, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d} {h}:{i}:{s}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <div class="operation-buttons">
            <el-button
              size="mini"
              type="text"
              icon="el-icon-edit"
              @click="handleUpdate(scope.row)"
              v-hasPermi="['commSys:comm:edit']"
            >修改</el-button>
            <el-button
              size="mini"
              type="text"
              icon="el-icon-delete"
              @click="handleDelete(scope.row)"
              v-hasPermi="['commSys:comm:remove']"
            >删除</el-button>
          </div>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0 && !filterExpired"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="100px">
        <el-form-item label="商品名称" prop="commName">
          <el-input v-model="form.commName" placeholder="请输入商品名称" />
        </el-form-item>
        <el-form-item label="商品图片" prop="commImage">
          <div v-if="form.commImage">
            <img
              :src="getImageUrl(form.commImage)"
              alt="预览图"
              class="preview-image"
              @error="handleImageError(-1)"
            />
            <el-button size="small" type="danger" @click="clearImage">移除图片</el-button>
          </div>
          <image-upload v-model="form.commImage" />
        </el-form-item>
        <el-form-item label="规格" prop="unit">
          <el-input v-model="form.unit" placeholder="请输入规格" />
        </el-form-item>

        <el-form-item label="商品价格" prop="price">
          <el-input 
            v-model.number="form.price"
            placeholder="0.00"
            style="width: 200px"
          >
            <template slot="prefix">¥</template>
          </el-input>
        </el-form-item>

        <el-form-item label="保质期" prop="exp">
          <el-input 
            v-model.number="form.exp"
            placeholder="请输入月数"
            style="width: 200px"
          >
            <template slot="append">个月</template>
          </el-input>
        </el-form-item>

        <el-form-item label="商品类型" prop="classId">
          <el-select 
            v-model="form.classId" 
            placeholder="请选择类型"
            style="width: 100%"
          >
            <el-option
              v-for="item in classList"
              :key="item.classId"
              :label="item.className"
              :value="item.classId"
              :style="{
                color: getClassColor(item.classId),
                fontWeight: 500
              }"
            />
          </el-select>
        </el-form-item>

        <el-form-item label="生产日期" prop="pd">
          <el-date-picker
            v-model="form.pd"
            type="date"
            value-format="yyyy-MM-dd"
            placeholder="选择日期"
          />
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import { listComm, getComm, delComm, addComm, updateComm } from "@/api/commSys/comm";
import { listClass } from "@/api/commSys/class";

export default {
  name: "Comm",
  data() {
    return {
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        commName: null
      },
      commList: [],
      total: 0,
      loading: false,
      showSearch: true,
      open: false,
      title: "",
      form: {
        commId: null,
        commName: null,
        commImage: null,
        unit: null,
        price: null,
        pd: null,
        exp: null,
        classId: null,
        createTime: null,
        updateTime: null
      },
      rules: {
        commName: [
          { required: true, message: "请输入商品名称", trigger: "blur" }
        ],
        price: [
          { required: true, message: "请输入商品价格", trigger: "blur" },
          { type: "number", message: "价格必须为数字值" }
        ],
        classId: [
          { required: true, message: "请选择商品类型", trigger: "change" }
        ]
      },
      ids: [],
      single: true,
      multiple: true,
      classList: [],
      classColorMap: {
        1: "#FF4757",
        2: "#2ED573",
        3: "#1E90FF",
        4: "#FFA502"
      },
      imageBaseUrl: process.env.NODE_ENV === "development" 
        ? "http://localhost:8080" 
        : "https://your-production-domain.com",
      filterExpired: false
    };
  },
  computed: {
    displayedCommList() {
      if (this.filterExpired) {
        return this.commList.filter(item => this.isExpired(item));
      }
      return this.commList;
    }
  },
  created() {
    this.getList();
    this.getClassList();
  },
  methods: {
    getList() {
      this.loading = true;
      listComm(this.queryParams).then(response => {
        this.commList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    getClassList() {
      listClass().then(response => {
        this.classList = response.rows;
      });
    },
    cancel() {
      this.open = false;
      this.reset();
    },
    reset() {
      this.form = {
        commId: null,
        commName: null,
        commImage: null,
        unit: null,
        price: null,
        pd: null,
        exp: null,
        classId: null,
        createTime: null,
        updateTime: null
      };
      this.resetForm("form");
    },
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.commId);
      this.single = selection.length !== 1;
      this.multiple = !selection.length;
    },
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加商品";
    },
    handleUpdate(row) {
      this.reset();
      const commId = row.commId || this.ids;
      getComm(commId).then(response => {
        this.form = response.data;
        this.open = true;
        this.title = "修改商品";
      });
    },
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          if (this.form.commId != null) {
            updateComm(this.form).then(() => {
              this.$modal.msgSuccess("修改成功");
              this.open = false;
              this.getList();
            });
          } else {
            addComm(this.form).then(() => {
              this.$modal.msgSuccess("新增成功");
              this.open = false;
              this.getList();
            });
          }
        }
      });
    },
    handleDelete(row) {
      const commIds = row.commId || this.ids;
      this.$modal.confirm(`是否确认删除商品编号为"${commIds}"的数据项？`).then(() => {
        return delComm(commIds);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {});
    },
    handleExport() {
      this.download("commSys/comm/export", {
        ...this.queryParams
      }, `comm_${new Date().getTime()}.xlsx`);
    },
    getClassName(classId) {
      const item = this.classList.find(item => item.classId === classId);
      return item ? item.className : "";
    },
    getImageUrl(path) {
      if (!path) return "https://picsum.photos/120/120?random=1";
      if (path.startsWith("http")) return path;
      return `${this.imageBaseUrl}${path}`;
    },
    handleImageError(index) {
      console.error(`图片加载失败，索引: ${index}`);
    },
    clearImage() {
      this.form.commImage = null;
    },
    getClassTagType(classId) {
      const types = ["", "danger", "success", "info", "warning"];
      return types[classId % 4 + 1] || "primary";
    },
    getClassColor(classId) {
      return this.classColorMap[classId % 4 + 1] || "#57606f";
    },
    toggleExpiredFilter() {
      this.filterExpired = !this.filterExpired;
      this.handleSelectionChange([]);
    },
    isExpired(item) {
      if (!item.pd || !item.exp) return false;
      
      try {
        const productionDate = new Date(item.pd);
        if (isNaN(productionDate)) return false;
        
        const expiryDate = new Date(productionDate);
        expiryDate.setMonth(expiryDate.getMonth() + parseInt(item.exp));
        
        return expiryDate < new Date();
      } catch (e) {
        console.error('日期计算错误:', e);
        return false;
      }
    }
  }
};
</script>

<style scoped>
.app-container {
  padding: 20px;
}

.comm-image {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid #ebeef5;
}

.preview-image {
  max-width: 150px;
  max-height: 150px;
  margin-bottom: 10px;
  display: block;
  border-radius: 4px;
  border: 1px solid #ebeef5;
}

.operation-buttons {
  display: flex;
  gap: 4px;
  justify-content: center;
  align-items: center;
  white-space: nowrap;
}

.operation-buttons .el-button {
  margin: 0;
  padding: 0 4px;
}

.price-display {
  color: #ff4500;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.5px;
}

.expiration-display {
  display: flex;
  align-items: baseline;
  justify-content: center;
}
.days {
  font-size: 16px;
  color: #2f3542;
  margin-right: 3px;
}
.unit {
  font-size: 12px;
  color: #747d8c;
}

.type-tag {
  min-width: 70px;
  text-align: center;
  letter-spacing: 0.5px;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.type-tag:hover {
  transform: scale(1.05);
}

.el-input__prefix {
  display: flex;
  align-items: center;
  padding-left: 8px;
  color: #606266;
}

.filter-notice {
  margin: 10px 0;
  padding: 10px;
  background-color: #fffbe6;
  border: 1px solid #ffe58f;
  border-radius: 4px;
  color: #faad14;
  font-size: 14px;
}
</style>
能帮我看一下为什么商品价格为小数吗