<template>
    <div class="table">
        <div class="crumbs">
            <el-breadcrumb separator="/">
                <el-breadcrumb-item>
                    <i class="el-icon-lx-cascades"></i> 基础表格
                </el-breadcrumb-item>
            </el-breadcrumb>
        </div>
        <div class="container">
            <div class="handle-box">
                <el-button
                    type="primary"
                    icon="el-icon-delete"
                    class="handle-del mr10"
                    @click="delAll"
                >批量删除</el-button>
                <el-select v-model="select_cate" placeholder="筛选省份" class="handle-select mr10">
                    <el-option key="1" label="广东省" value="广东省"></el-option>
                    <el-option key="2" label="湖南省" value="湖南省"></el-option>
                </el-select>
                <el-input v-model="select_word" placeholder="筛选关键词" class="handle-input mr10"></el-input>
                <el-button type="primary" icon="el-icon-search" @click="search">搜索</el-button>
            </div>
            <el-table
                :data="data"
                border
                class="table"
                ref="multipleTable"
                header-cell-class-name="table-header"
                @selection-change="handleSelectionChange"
            >
                <el-table-column type="selection" width="55" align="center"></el-table-column>
                <el-table-column prop="id" label="ID" width="55" align="center"></el-table-column>
                <el-table-column prop="name" label="用户名"></el-table-column>
                <el-table-column label="账户余额">
                    <template slot-scope="scope">￥{{scope.row.money}}</template>
                </el-table-column>
                <el-table-column label="头像(查看大图)" align="center">
                    <template slot-scope="scope">
                        <el-image
                            class="table-td-thumb"
                            :src="scope.row.thumb"
                            :preview-src-list="[scope.row.thumb]"
                        ></el-image>
                    </template>
                </el-table-column>
                <el-table-column prop="address" label="地址"></el-table-column>
                <el-table-column label="状态" align="center">
                    <template slot-scope="scope">
                        <el-tag
                            :type="scope.row.state==='成功'?'success':(scope.row.state==='失败'?'danger':'')"
                        >{{scope.row.state}}</el-tag>
                    </template>
                </el-table-column>

                <el-table-column prop="date" label="注册时间"></el-table-column>
                <el-table-column label="操作" width="180" align="center">
                    <template slot-scope="scope">
                        <el-button
                            type="text"
                            icon="el-icon-edit"
                            @click="handleEdit(scope.$index, scope.row)"
                        >编辑</el-button>
                        <el-button
                            type="text"
                            icon="el-icon-delete"
                            class="red"
                            @click="handleDelete(scope.$index, scope.row)"
                        >删除</el-button>
                    </template>
                </el-table-column>
            </el-table>
            <div class="pagination">
                <el-pagination
                    background
                    layout="total, prev, pager, next"
                    :current-page="page.index"
                    :page-size="page.size"
                    :total="page.total"
                    @current-change="handleCurrentChange"
                ></el-pagination>
            </div>
        </div>

        <!-- 编辑弹出框 -->
        <el-dialog title="编辑" :visible.sync="editVisible" width="30%">
            <el-form ref="form" :model="form" label-width="70px">
                <el-form-item label="用户名">
                    <el-input v-model="form.name"></el-input>
                </el-form-item>
                <el-form-item label="地址">
                    <el-input v-model="form.address"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveEdit">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
import { fetchData } from '../../api/index';
export default {
    name: 'basetable',
    data() {
        return {
            tableData: [],
            cur_page: 1,
            multipleSelection: [],
            select_cate: '',
            select_word: '',
            del_list: [],
            editVisible: false,
            form: {},
            page: {
                index: 1,
                size: 10,
                total: 50
            },
            idx: -1,
            id: -1
        };
    },
    created() {
        this.getData();
    },
    computed: {
        data() {
            return this.tableData.filter(d => {
                let is_del = false;
                for (let i = 0; i < this.del_list.length; i++) {
                    if (d.name === this.del_list[i].name) {
                        is_del = true;
                        break;
                    }
                }
                if (!is_del) {
                    if (
                        d.address.indexOf(this.select_cate) > -1 &&
                        (d.name.indexOf(this.select_word) > -1 || d.address.indexOf(this.select_word) > -1)
                    ) {
                        return d;
                    }
                }
            });
        }
    },
    methods: {
        // 分页导航
        handleCurrentChange(val) {
            this.cur_page = val;
            this.getData();
        },
        // 获取 easy-mock 的模拟数据
        getData() {
            fetchData({
                page: this.cur_page
            }).then(res => {
                this.tableData = res.list;
            });
        },
        search() {},
        handleEdit(index, row) {
            this.idx = index;
            this.id = row.id;
            this.form = row;
            this.editVisible = true;
        },
        handleDelete(index, row) {
            // 二次确认删除
            this.$confirm('确定要删除吗？', '提示', {
                type: 'warning'
            })
                .then(() => {
                    this.$message.success('删除成功');
                    if (this.tableData[index].id === row.id) {
                        this.tableData.splice(index, 1);
                    } else {
                        for (let i = 0; i < this.tableData.length; i++) {
                            if (this.tableData[i].id === row.id) {
                                this.tableData.splice(i, 1);
                                return;
                            }
                        }
                    }
                })
                .catch(() => {});
        },
        delAll() {
            const length = this.multipleSelection.length;
            let str = '';
            this.del_list = this.del_list.concat(this.multipleSelection);
            for (let i = 0; i < length; i++) {
                str += this.multipleSelection[i].name + ' ';
            }
            this.$message.error(`删除了${str}`);
            this.multipleSelection = [];
        },
        handleSelectionChange(val) {
            this.multipleSelection = val;
        },
        // 保存编辑
        saveEdit() {
            this.editVisible = false;
            this.$message.success(`修改第 ${this.idx + 1} 行成功`);
            if (this.tableData[this.idx].id === this.id) {
                this.$set(this.tableData, this.idx, this.form);
            } else {
                for (let i = 0; i < this.tableData.length; i++) {
                    if (this.tableData[i].id === this.id) {
                        this.$set(this.tableData, i, this.form);
                        return;
                    }
                }
            }
        }
    }
};
</script>

<style scoped>
.handle-box {
    margin-bottom: 20px;
}

.handle-select {
    width: 120px;
}

.handle-input {
    width: 300px;
    display: inline-block;
}
.del-dialog-cnt {
    font-size: 16px;
    text-align: center;
}
.table {
    width: 100%;
    font-size: 14px;
}
.red {
    color: #ff0000;
}
.mr10 {
    margin-right: 10px;
}
.table-td-thumb {
    display: block;
    margin: auto;
    width: 40px;
    height: 40px;
}
</style>
