{extend name="app/shop/view/base.html" /}
{block name="resources"}
<style>
	.js-migrate-list {
		display: none;
	}

	.progress-bar-wrap .layui-input-block {
		padding-top: 11px;
		min-height: initial;
	}

	.progress-bar {
		height: 10px;
		background: #e8e8e8;
		width: 60%;
		border-radius: 4px;
		position: relative;
	}

	.progress-bar .curr {
		content: '';
		background: #FF6A00;
		display: block;
		width: 0;
		height: 10px;
		border-radius: 4px;
	}

	.progress-bar .value {
		position: absolute;
		right: -70px;
		top: -3px;
		line-height: initial;
	}

	.js-save[disabled] {
		background: #d2d2d2 !important;
		cursor: not-allowed;
	}

	.laytable-cell-1-0-3 {
    	text-align: right;
	}

</style>
{/block}
{block name="main"}
<div class="layui-collapse tips-wrap">
	<div class="layui-colla-item">
		<h2 class="layui-colla-title">操作提示</h2>
		<ul class="layui-colla-content layui-show">
			<li>在迁移数据前,首先会备份原数据，SQL文件存放在upload/backup文件夹下</li>
			<li>迁移数据开始后，请不要关闭当前页面，以免造成未知错误</li>
			<li>文档参考：<a href="https://www.kancloud.cn/niucloud/niushop_b2c_v4/1852551" target="_blank" class="text-color">v3Tov4迁移数据说明文档</a>
			</li>
		</ul>
	</div>
</div>
<div class="layui-form form-wrap">

	<table lay-filter="migrate_list" lay-skin="line" class="js-migrate-list">
		<thead>
		<tr>
			<th lay-data="{checkbox:true,field:'key', width:'5%'}"></th>
			<th lay-data="{field:'name',width:'20%'}">迁移模块</th>
			<th lay-data="{field:'introduction',width:'65%'}">描述</th>
			<th lay-data="{field:'action',width:'10%'}" >迁移说明</th>
		</tr>
		</thead>
		<tbody>
		{foreach name="$task_class" item="vo" key="k"}
		{if $vo['is_show']}
		<tr>
			<td>{$k}</td>
			<td>{$vo['name']}</td>
			<td>{$vo['introduction']}</td>
			<td>
				<div class="table-btn">
					<a class="layui-btn js-select-desc" data-desc='{$vo["desc"]}'>详情</a>
				</div>
			</td>
		</tr>
		{/if}
		{/foreach}
		</tbody>
	</table>

	{foreach name="$task_class" item="vo" key="k"}
	<input type="hidden" name="migrate_data" title="{$vo['name']}" value="{$k}" lay-skin="primary">
	{/foreach}

	<div class="layui-form-item progress-bar-wrap">
		<label class="layui-form-label mid">迁移进度：</label>
		<div class="layui-input-block">
			<div class="progress-bar">
				<span class="curr"></span>
				<span class="value">0%</span>
			</div>
		</div>
	</div>

	<div class="form-row mid">
		<button class="layui-btn js-save" lay-submit lay-filter="save">迁移</button>
	</div>

</div>
{/block}
{block name="script"}
<script type="text/javascript">
	var form, table;
	var index = -1;// 当前页
	var migrate_data = [];// 已选迁移模块
	var total = 0;// 总页数
	var page_size = 0;//每页数量

	var last_table = "";
	var backup_index = 0;
	var series = 0;
	var is_backup_end = 0;// 是否备份完成
	var repeat_flag = false; //防重复标识

	layui.use(['form', 'table'], function () {
		form = layui.form;
		table = layui.table;

		table.init('migrate_list');

		table.on('checkbox(migrate_list)', function (obj) {
			if (obj.type == "all") {
				migrate_data = [];
				if (obj.checked) {
					$("input[name='migrate_data']").each(function () {
						migrate_data.push($(this).val());
					});
				}
			} else {
				if (obj.checked) {
					migrate_data.push(obj.data.key);
				} else {
					for (var i in migrate_data) {
						if (migrate_data[i] == obj.data.key) migrate_data.splice(i, 1);
					}
				}
			}
		});

		$("body").on("click", ".js-select-desc", function () {
			var desc = $(this).attr("data-desc");
			layer.open({
				title: '迁移说明',
				area: ['900px', '600px'],
				content: '<pre>' + desc + '</pre>'
			});
		});

		form.on("submit(save)", function (data) {
			if (!migrate_data.length) {
				layer.msg("请选择要迁移的数据");
				return false;
			}

			if (repeat_flag) return false;
			repeat_flag = true;

			checkModuleIsUpgrade(function () {
				execute();
			});

		})
	});

	function execute() {
		if (is_backup_end) {
			migrate();
		} else {
			$(".js-save").text("数据备份中...").attr("disabled", true);
			backupSql(function (res) {
				if (res.code >= 0) {
					$(".js-save").text("数据迁移中...").attr("disabled", true);
					migrate();
				}
			});
		}
	}

	/**
	 * 迁移数据
	 */
	function migrate() {
		$.ajax({
			url: ns.url("v3tov4://shop/upgrade/index"),
			dataType: 'JSON',
			type: 'POST',
			data: {index: index, 'class': migrate_data.toString()},
			success: function (res) {
				if (res.code >= 0) {
					var data = res.data;
					index = parseInt(data.index);
					total = parseInt(data.total);
					page_size = parseInt(data.page_size);
					var progress = 0;
					if (index > -1) {
						// 进度计算公式：(当前页 * 每页数量) / 总数量(每页数量 * 总页数) * 100
						progress = parseFloat(((index + 1) * page_size) / (page_size * total) * 100).toFixed(2);
					}

					$(".progress-bar .curr").css("width", progress + "%");
					$(".progress-bar .value").text(progress + "%");
					if ((parseInt(index) + 1) < total) {
						index++;
						execute();
					} else {
						updateLogStatus();
						$(".js-save").text("迁移完成").removeAttr("disabled");
						layer.msg("迁移完成");
					}
				} else {
					layer.msg(res.message);
				}
			}
		});
	}

	/**
	 * 数据备份
	 * @param callback
	 */
	function backupSql(callback) {
		$.ajax({
			type: 'post',
			url: ns.url("v3tov4://shop/upgrade/backupSql"),
			dataType: 'json',
			data: {
				last_table: last_table,
				index: backup_index,
				series: series
			},
			success: function (res) {
				if (res.code >= 0) {
					var data = res.data;
					//判断是否备份完成
					if (data.is_backup_end) {
						is_backup_end = data.is_backup_end;
						if (callback) callback(res);
					} else {
						last_table = data.last_table;
						series = data.series;
						backup_index = data.index;
						backupSql(callback);
					}
				} else {
					if (callback) callback(res);
					is_backup_end = 0;
					layer.msg("备份发生错误：", res.message);
				}

			}
		});
	}

	/**
	 * 获取最新的模块迁移状态，防止重复迁移
	 * @param callback
	 */
	function checkModuleIsUpgrade(callback) {
		$.ajax({
			type: 'post',
			url: ns.url("v3tov4://shop/upgrade/checkModuleIsUpgrade"),
			dataType: 'json',
			data: {
				module: migrate_data.toString()
			},
			success: function (res) {
				var data = res.data;
				var module = [];
				var message = '';
				for (var i = 0; i < data.length; i++) {
					if (data[i].count) {
						module.push(data[i].title);
					}
				}
				if (module.length) {
					message = "[ " + module.join("，") + ' ] 数据已迁移成功，确定要重新迁移吗？';
					var index = layer.confirm(message, {
						title: '操作提示',
						// btn: ['返回列表', '继续添加'],
						closeBtn: 0,
						yes: function () {
							if (callback) callback();
							layer.close(index);
						}, btn2: function () {
							repeat_flag = false;
						}
					})

				} else {
					if (callback) callback();
				}

			}
		});
	}

	/**
	 * 更新迁移日志状态
	 */
	function updateLogStatus() {
		$.ajax({
			type: 'post',
			url: ns.url("v3tov4://shop/upgrade/updateLogStatus"),
			dataType: 'json',
			data: {
				module: migrate_data.toString()
			},
			success: function (res) {
			}
		});
	}

</script>
{/block}