<template>
  <div class="welcome">
    <HeaderBar />

    <div class="operation-bar">
      <h2 class="page-title">用户管理</h2>
      <div class="right-operations">
        <el-input placeholder="请输入手机号码查询" v-model="searchPhone" class="search-input" clearable
          @keyup.enter.native="handleSearch" />
        <el-button class="btn-search" @click="handleSearch">搜索</el-button>
      </div>
    </div>

    <div class="main-wrapper">
      <div class="content-panel">
        <div class="content-area">
          <el-card class="user-card" shadow="never">
            <el-table ref="userTable" :data="userList" class="transparent-table"
              :header-cell-class-name="headerCellClassName">
              <el-table-column label="选择" type="selection" align="center" width="120"></el-table-column>
              <el-table-column label="用户Id" prop="userid" align="center"></el-table-column>
              <el-table-column label="手机号码" prop="mobile" align="center"></el-table-column>
              <el-table-column label="设备数量" prop="deviceCount" align="center"></el-table-column>
              <el-table-column label="状态" prop="status" align="center">
                <template slot-scope="scope">
                  <el-tag v-if="scope.row.status === 1" type="success">正常</el-tag>
                  <el-tag v-else type="danger">禁用</el-tag>
                </template>
              </el-table-column>
              <el-table-column label="操作" align="center">
                <template slot-scope="scope">
                  <el-button size="mini" type="text" @click="resetPassword(scope.row)">重置密码</el-button>
                  <el-button size="mini" type="text" v-if="scope.row.status === 1"
                    @click="handleChangeStatus(scope.row, 0)">禁用账户</el-button>
                  <el-button size="mini" type="text" v-if="scope.row.status === 0"
                    @click="handleChangeStatus(scope.row, 1)">恢复账号</el-button>
                  <el-button size="mini" type="text" @click="deleteUser(scope.row)">删除用户</el-button>
                </template>
              </el-table-column>
            </el-table>

            <div class="table_bottom">
              <div class="ctrl_btn">
                <el-button size="mini" type="primary" class="select-all-btn" @click="handleSelectAll">
                    {{ isAllSelected ? '取消全选' : '全选' }}
                </el-button>
                <el-button size="mini" type="success" icon="el-icon-circle-check" @click="batchEnable">启用</el-button>
                <el-button size="mini" type="warning" @click="batchDisable"><i
                    class="el-icon-remove-outline rotated-icon"></i>禁用</el-button>
                <el-button size="mini" type="danger" icon="el-icon-delete" @click="batchDelete">删除</el-button>
              </div>
              <div class="custom-pagination">
                <button class="pagination-btn" :disabled="currentPage === 1" @click="goFirst">
                  首页
                </button>
                <button class="pagination-btn" :disabled="currentPage === 1" @click="goPrev">
                  上一页
                </button>
                <button v-for="page in visiblePages" :key="page" class="pagination-btn"
                  :class="{ active: page === currentPage }" @click="goToPage(page)">
                  {{ page }}
                </button> <button class="pagination-btn" :disabled="currentPage === pageCount" @click="goNext">
                  下一页
                </button>
                <span class="total-text">共{{ total }}条记录</span>
              </div>
            </div>
          </el-card>
        </div>
      </div>
    </div>

<!-- <div class="copyright">©2025 xiaozhi-esp32-server</div> -->
    <view-password-dialog :visible.sync="showViewPassword" :password="currentPassword" />
  </div>
</template>

<script>
import Api from "@/apis/api";
import HeaderBar from "@/components/HeaderBar.vue";
import ViewPasswordDialog from "@/components/ViewPasswordDialog.vue";

export default {
  components: { HeaderBar, ViewPasswordDialog },
  data() {
    return {
      showViewPassword: false,
      currentPassword: "",
      searchPhone: "",
      userList: [],
      currentPage: 1,
      pageSize: 5,
      total: 0,
      isAllSelected: false
    };
  },
  created() {
    this.fetchUsers();
  },
  computed: {
    pageCount() {
      return Math.ceil(this.total / this.pageSize);
    },
    visiblePages() {
      const pages = [];
      const maxVisible = 3;
      let start = Math.max(1, this.currentPage - 1);
      let end = Math.min(this.pageCount, start + maxVisible - 1);

      if (end - start + 1 < maxVisible) {
        start = Math.max(1, end - maxVisible + 1);
      }

      for (let i = start; i <= end; i++) {
        pages.push(i);
      }
      return pages;
    },
  },
  methods: {
    fetchUsers() {
      Api.admin.getUserList(
        {
          page: this.currentPage,
          limit: this.pageSize,
          mobile: this.searchPhone,
        },
        ({ data }) => {
          if (data.code === 0) {
            this.userList = data.data.list
            this.total = data.data.total;
          }
        }
      );
    },
    handleSearch() {
      this.currentPage = 1;
      this.fetchUsers();
    },
    handleSelectAll() {
      if (this.isAllSelected) {
        this.$refs.userTable.clearSelection();
      } else {
        this.$refs.userTable.toggleAllSelection();
      }
      this.isAllSelected = !this.isAllSelected;
    },
    batchDelete() {
      const selectedUsers = this.$refs.userTable.selection;
      if (selectedUsers.length === 0) {
        this.$message.warning("请先选择需要删除的用户");
        return;
      }

      this.$confirm(`确定要删除选中的${selectedUsers.length}个用户吗？`, "警告", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(async () => {
          const loading = this.$loading({
            lock: true,
            text: "正在删除中...",
            spinner: "el-icon-loading",
            background: "rgba(0, 0, 0, 0.7)",
          });

          try {
            const results = await Promise.all(
              selectedUsers.map((user) => {
                return new Promise((resolve) => {
                  Api.admin.deleteUser(user.userid, ({ data }) => {
                    if (data.code === 0) {
                      resolve({ success: true, userid: user.userid });
                    } else {
                      resolve({ success: false, userid: user.userid, msg: data.msg });
                    }
                  });
                });
              })
            );

            const successCount = results.filter((r) => r.success).length;
            const failCount = results.length - successCount;

            if (failCount === 0) {
              this.$message.success({
                message: `成功删除${successCount}个用户`,
                showClose: true
              });
            } else if (successCount === 0) {
              this.$message.error({
                message: '删除失败，请重试',
                showClose: true
              });
            } else {
              this.$message.warning(
                `成功删除${successCount}个用户，${failCount}个删除失败`
              );
            }

            this.fetchUsers();
          } catch (error) {
            this.$message.error("删除过程中发生错误");
          } finally {
            loading.close();
          }
        })
        .catch(() => {
          this.$message.info("已取消删除");
        });
    },
    batchEnable() {
      const selectedUsers = this.$refs.userTable.selection;
      if (selectedUsers.length === 0) {
        this.$message.warning("请先选择需要启用的用户");
        return;
      }
      this.handleChangeStatus(selectedUsers, 1);
    },
    batchDisable() {
      const selectedUsers = this.$refs.userTable.selection;
      if (selectedUsers.length === 0) {
        this.$message.warning("请先选择需要禁用的用户");
        return;
      }
      this.handleChangeStatus(selectedUsers, 0);
    },
    resetPassword(row) {
      this.$confirm("重置后将会生成新密码，是否继续？", "提示", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
      }).then(() => {
        Api.admin.resetUserPassword(row.userid, ({ data }) => {
          if (data.code === 0) {
            this.currentPassword = data.data;
            this.showViewPassword = true;
            this.$message.success({
              message: "密码已重置，请通知用户使用新密码登录",
              showClose: true
            });
          }
        });
      });
    },
    deleteUser(row) {
      this.$confirm("确定要删除该用户吗？", "警告", {
        confirmButtonText: "确定",
        cancelButtonText: "取消",
        type: "warning",
      })
        .then(() => {
          Api.admin.deleteUser(row.userid, ({ data }) => {
            if (data.code === 0) {
              this.$message.success({
                message: "删除成功",
                showClose: true
              });
              this.fetchUsers();
            } else {
              this.$message.error({
                message: data.msg || "删除失败",
                showClose: true
              });
            }
          });
        })
        .catch(() => { });
    },
    headerCellClassName({ columnIndex }) {
      if (columnIndex === 0) {
        return "custom-selection-header";
      }
      return "";
    },
    goFirst() {
      this.currentPage = 1;
      this.fetchUsers();
    },
    goPrev() {
      if (this.currentPage > 1) {
        this.currentPage--;
        this.fetchUsers();
      }
    },
    goNext() {
      if (this.currentPage < this.pageCount) {
        this.currentPage++;
        this.fetchUsers();
      }
    },
    goToPage(page) {
      this.currentPage = page;
      this.fetchUsers();
    },
    handleChangeStatus(row, status) {
      // 处理单个用户或用户数组
      const users = Array.isArray(row) ? row : [row];
      const confirmText = status === 0 ? '禁用' : '启用';
      const userCount = users.length;

      this.$confirm(`确定要${confirmText}选中的${userCount}个用户吗？`, '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        const userIds = users.map(user => user.userid);
        if (userIds.some(id => isNaN(id))) {
          this.$message.error('存在无效的用户ID');
          return;
        }

        Api.user.changeUserStatus(status, userIds, ({ data }) => {
          if (data.code === 0) {
            this.$message.success({
              message: `成功${confirmText}${userCount}个用户`,
              showClose: true
            });
            this.fetchUsers(); // 刷新用户列表
          } else {
            this.$message.error({
              message: '操作失败，请重试',
              showClose: true
            });
          }
        });
      }).catch(() => {
        // 用户取消操作
      });
    }
  },
};
</script>

<style lang="scss" scoped>
.welcome {
  min-width: 900px;
  min-height: 506px;
  height: 100vh;
  display: flex;
  position: relative;
  flex-direction: column;
  background-size: cover;
  background: linear-gradient(to bottom right, #dce8ff, #e4eeff, #e6cbfd) center;
  -webkit-background-size: cover;
  -o-background-size: cover;
}

.main-wrapper {
  margin: 5px 22px;
  border-radius: 15px;
  min-height: 600px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.1);
  position: relative;
  background: rgba(237, 242, 255, 0.5);
}

.operation-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
}

.page-title {
  font-size: 24px;
  margin: 0;
}

.right-operations {
  display: flex;
  gap: 10px;
  margin-left: auto;
}

.search-input {
  width: 240px;
}

.btn-search {
  background: linear-gradient(135deg, #6b8cff, #a966ff);
  border: none;
  color: white;
}

.content-panel {
  flex: 1;
  display: flex;
  overflow: hidden;
  height: 100%;
  border-radius: 15px;
  background: transparent;
  border: 1px solid #fff;
}

.content-area {
  flex: 1;
  height: 100%;
  min-width: 600px;
  overflow-x: auto;
  background-color: white;
}

.user-card {
  background: white;
  border: none;
  box-shadow: none;
}

.table_bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 10px;
}

.ctrl_btn {
  display: flex;
  gap: 8px;
  padding-left: 26px;

  .el-button {
    min-width: 72px;
    height: 32px;
    padding: 7px 12px 7px 10px;
    font-size: 12px;
    border-radius: 4px;
    line-height: 1;
    font-weight: 500;
    border: none;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);

    &:hover {
      transform: translateY(-1px);
      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    }
  }

  .el-button--primary {
    background: #5f70f3;
    color: white;
  }

  .el-button--success {
    background: #5bc98c;
    color: white;
  }

  .el-button--warning {
    background: #f6d075;
    color: black;
  }

  .el-button--danger {
    background: #fd5b63;
    color: white;
  }
}

.rotated-icon {
  display: inline-block;
  transform: rotate(45deg);
  margin-right: 4px;
  color: black;
}

.custom-pagination {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 15px;

  .pagination-btn:first-child,
  .pagination-btn:nth-child(2),
  .pagination-btn:nth-last-child(2) {
    min-width: 60px;
    height: 32px;
    padding: 0 12px;
    border-radius: 4px;
    border: 1px solid #e4e7ed;
    background: #dee7ff;
    color: #606266;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;

    &:hover {
      background: #d7dce6;
    }

    &:disabled {
      opacity: 0.6;
      cursor: not-allowed;
    }
  }

  .pagination-btn:not(:first-child):not(:nth-child(2)):not(:nth-last-child(2)) {
    min-width: 28px;
    height: 32px;
    padding: 0;
    border-radius: 4px;
    border: 1px solid transparent;
    background: transparent;
    color: #606266;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;

    &:hover {
      background: rgba(245, 247, 250, 0.3);
    }
  }

  .pagination-btn.active {
    background: #5f70f3 !important;
    color: #ffffff !important;
    border-color: #5f70f3 !important;

    &:hover {
      background: #6d7cf5 !important;
    }
  }

  .total-text {
    color: #909399;
    font-size: 14px;
    margin-left: 10px;
  }
}

:deep(.transparent-table) {
  background: white;

  .el-table__header th {
    background: white !important;
    color: black;
  }

  &::before {
    display: none;
  }

  .el-table__body tr {
    background-color: white;

    td {
      border-top: 1px solid rgba(0, 0, 0, 0.04);
      border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    }
  }
}

:deep(.el-table .el-button--text) {
  color: #7079aa !important;
}

:deep(.el-table .el-button--text:hover) {
  color: #5a64b5 !important;
}

:deep(.custom-selection-header) {
  .el-checkbox {
    display: none !important;
  }

  &::after {
    content: "选择";
    display: inline-block;
    color: black;
    font-weight: bold;
    padding-bottom: 18px;
  }
}

:deep(.el-checkbox__inner) {
  background-color: #eeeeee !important;
  border-color: #cccccc !important;
}

:deep(.el-checkbox__inner:hover) {
  border-color: #cccccc !important;
}

:deep(.el-checkbox__input.is-checked .el-checkbox__inner) {
  background-color: #5f70f3 !important;
  border-color: #5f70f3 !important;
}

@media (min-width: 1144px) {
  .table_bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
  }

  :deep(.transparent-table) {
    .el-table__body tr {
      td {
        padding-top: 16px;
        padding-bottom: 16px;
      }

      &+tr {
        margin-top: 10px;
      }
    }
  }
}
</style>
