{{ define "user.html" }}
<section>
  <h2>账户管理</h2>
  <div class="layui-tab layui-tab-brief" lay-filter="userTabs" style="margin-top: 16px;">
    <ul class="layui-tab-title">
      <li class="layui-this">修改密码</li>
      <li>修改用户名</li>
    </ul>
    <div class="layui-tab-content">
      <!-- 修改密码模块 -->
      <div class="layui-tab-item layui-show">
        <div class="layui-panel" style="margin-top: 16px;">
          <h3 style="margin: 0; padding: 15px 20px; border-bottom: 1px solid var(--lay-color-border-2); padding-bottom: 10px; margin-bottom: 15px;">修改密码</h3>
          <div style="padding: 20px;">
            <form class="layui-form" id="passwordForm" lay-filter="passwordForm" onsubmit="return false">
              <div class="layui-form-item">
                <label class="layui-form-label" style="cursor: pointer;" data-tips="user-old-password">当前密码</label>
                <div class="layui-input-block">
                  <div class="layui-input-wrap">
                    <input type="password" name="old_password" placeholder="请输入当前密码" autocomplete="off"
                      class="layui-input" lay-verify="required" lay-affix="eye" />
                  </div>
                </div>
              </div>
              <div class="layui-form-item">
                <label class="layui-form-label" style="cursor: pointer;" data-tips="user-new-password">新的密码</label>
                <div class="layui-input-block">
                  <div class="layui-input-wrap">
                    <input type="password" name="new_password" placeholder="请输入新密码（至少6位）" autocomplete="off"
                      class="layui-input" lay-verify="required" lay-affix="eye" />
                  </div>
                </div>
              </div>
              <div class="layui-form-item">
                <label class="layui-form-label">确认密码</label>
                <div class="layui-input-block">
                  <div class="layui-input-wrap">
                    <input type="password" name="confirm_password" placeholder="请再次输入新密码" autocomplete="off"
                      class="layui-input" lay-verify="required" lay-affix="eye" />
                  </div>
                </div>
              </div>
              <div class="layui-form-item">
                <div class="layui-input-block">
                  <button class="layui-btn" lay-submit lay-filter="submitPassword">
                    <i class="layui-icon layui-icon-ok"></i> 修改密码
                  </button>
                  <button type="button" id="resetPasswordBtn" class="layui-btn layui-btn-primary">
                    <i class="layui-icon layui-icon-refresh"></i> 重置
                  </button>
                </div>
              </div>
            </form>
          </div>
        </div>
      </div>

      <!-- 修改用户名模块 -->
      <div class="layui-tab-item">
        <div class="layui-panel" style="margin-top: 16px;">
          <h3 style="margin: 0; padding: 15px 20px; border-bottom: 1px solid var(--lay-color-border-2); padding-bottom: 10px; margin-bottom: 15px;">修改用户名</h3>
          <div style="padding: 20px;">
            <form class="layui-form" id="usernameForm" lay-filter="usernameForm" onsubmit="return false">
              <div class="layui-form-item">
                <label class="layui-form-label">当前用户名</label>
                <div class="layui-input-block">
                  <input type="text" name="current_username" disabled readonly class="layui-input readonly-field" />
                </div>
              </div>
              <div class="layui-form-item">
                <label class="layui-form-label" style="cursor: pointer;" data-tips="user-username">新用户名</label>
                <div class="layui-input-block">
                  <input type="text" name="new_username" placeholder="请输入新用户名" autocomplete="off" class="layui-input"
                    lay-verify="required" />
                </div>
              </div>
              <div class="layui-form-item">
                <label class="layui-form-label" style="cursor: pointer;" data-tips="user-old-password">当前密码</label>
                <div class="layui-input-block">
                  <div class="layui-input-wrap">
                    <input type="password" name="password" placeholder="请输入当前密码以确认身份" autocomplete="off"
                      class="layui-input" lay-verify="required" lay-affix="eye" />
                  </div>
                </div>
              </div>
              <div class="layui-form-item">
                <div class="layui-input-block">
                  <button class="layui-btn" lay-submit lay-filter="submitUsername">
                    <i class="layui-icon layui-icon-ok"></i> 修改用户名
                  </button>
                  <button type="button" id="resetUsernameBtn" class="layui-btn layui-btn-primary">
                    <i class="layui-icon layui-icon-refresh"></i> 重置
                  </button>
                </div>
              </div>
            </form>
          </div>
        </div>
      </div>
    </div>
  </div>

  <script>
    // 使用自执行函数创建局部作用域，避免与其他页面脚本发生全局命名冲突
    (() => {
      // 工具方法：将数值角色转为中文标签
      const roleToText = (role) => {
        const r = typeof role === 'string' ? parseInt(role, 10) : role
        return r === 0 ? '管理员' : '普通成员'
      }

      // 格式化时间
      const formatTime = (timeStr) => {
        if (!timeStr) return ''
        const date = new Date(timeStr)
        return date.toLocaleString('zh-CN')
      }

      // 如果未加载 layui，则按需加载
      const ensureLayui = () => new Promise((resolve) => {
        if (window.layui) return resolve(window.layui)
        const css = document.createElement('link')
        css.rel = 'stylesheet'
        css.href = 'https://unpkg.com/layui@2.10.1/dist/css/layui.css'
        document.head.appendChild(css)
        const script = document.createElement('script')
        script.src = 'https://unpkg.com/layui@2.10.1/dist/layui.js'
        script.onload = () => resolve(window.layui)
        document.head.appendChild(script)
      })

      // 在确保 Layui 可用后再执行页面逻辑
      ensureLayui().then(() => {
        layui.use(['form', 'layer', 'element'], () => {
          const form = layui.form
          const layer = layui.layer
          const element = layui.element

          // 全局变量
          let currentUsername = null

          // 获取当前用户名
          const getCurrentUsername = async () => {
            try {
              const res = await fetch('/admin/api/user/profile')
              const data = await res.json()
              const ok = (data.success === true) || (data.code === 0)
              if (!ok) throw new Error(data.message || data.msg || '获取用户信息失败')

              currentUsername = data.data.username
              // 填充用户名修改表单的当前用户名
              form.val('usernameForm', { current_username: currentUsername })

            } catch (e) {
              layer.msg(e.message || '获取用户信息失败', { icon: 2 })
            }
          }

          // 修改密码模块
          const PasswordModule = {
            validate: (fields) => {
              const { old_password, new_password, confirm_password } = fields

              if (!old_password || !new_password || !confirm_password) {
                return { ok: false, msg: '请填写完整的密码信息' }
              }

              if (new_password.length < 6) {
                return { ok: false, msg: '新密码长度不能少于6位' }
              }

              if (new_password !== confirm_password) {
                return { ok: false, msg: '两次输入的新密码不一致' }
              }

              if (old_password === new_password) {
                return { ok: false, msg: '新密码不能与当前密码相同' }
              }

              return { ok: true }
            },

            submit: async (fields) => {
              const validation = PasswordModule.validate(fields)
              if (!validation.ok) {
                layer.msg(validation.msg, { icon: 2 })
                return false
              }

              try {
                const res = await fetch('/admin/api/user/password', {
                  method: 'POST',
                  headers: { 'Content-Type': 'application/json' },
                  body: JSON.stringify({
                    old_password: fields.old_password,
                    new_password: fields.new_password,
                    confirm_password: fields.confirm_password
                  })
                })

                const data = await res.json()
                const ok = (data.success === true) || (data.code === 0)
                if (!ok) throw new Error(data.message || data.msg || '修改密码失败')

                // 检查是否需要跳转
                if (data.data?.redirect) {
                  layer.msg('密码修改成功，即将跳转到登录页', { icon: 1, time: 1500 }, () => {
                    window.location.href = data.data.redirect
                  })
                } else {
                  // 密码修改成功，不跳转，重置表单
                  layer.msg('密码修改成功', { icon: 1 })
                  document.getElementById('passwordForm').reset()
                }

              } catch (e) {
                layer.msg(e.message || '修改密码失败', { icon: 2 })
              }

              return false
            },

            reset: () => {
              document.getElementById('passwordForm').reset()
              layer.msg('表单已重置', { icon: 1 })
            }
          }

          // 修改用户名模块
          const UsernameModule = {
            validate: (fields) => {
              const { new_username, password } = fields

              if (!new_username || !password) {
                return { ok: false, msg: '请填写新用户名和当前密码' }
              }

              if (new_username === currentUsername) {
                return { ok: false, msg: '新用户名不能与当前用户名相同' }
              }

              if (new_username.length < 3) {
                return { ok: false, msg: '用户名长度不能少于3位' }
              }

              return { ok: true }
            },

            submit: async (fields) => {
              const validation = UsernameModule.validate(fields)
              if (!validation.ok) {
                layer.msg(validation.msg, { icon: 2 })
                return false
              }

              try {
                const res = await fetch('/admin/api/user/profile/update', {
                  method: 'POST',
                  headers: { 'Content-Type': 'application/json' },
                  body: JSON.stringify({
                    username: fields.new_username,
                    old_password: fields.password
                  })
                })

                const data = await res.json()
                const ok = (data.success === true) || (data.code === 0)
                if (!ok) throw new Error(data.message || data.msg || '修改用户名失败')

                layer.msg('用户名修改成功', { icon: 1 })

                // 重新获取当前用户名
                await getCurrentUsername()

                // 清空表单（不显示重置提示）
                form.val('usernameForm', {
                  new_username: '',
                  password: '',
                  current_username: currentUsername || ''
                })

              } catch (e) {
                layer.msg(e.message || '修改用户名失败', { icon: 2 })
              }

              return false
            },

            reset: () => {
              form.val('usernameForm', {
                new_username: '',
                password: '',
                current_username: currentUsername || ''
              })
              layer.msg('表单已重置', { icon: 1 })
            }
          }

          // 绑定表单提交事件
          form.on('submit(submitPassword)', (obj) => {
            return PasswordModule.submit(obj.field)
          })

          form.on('submit(submitUsername)', (obj) => {
            return UsernameModule.submit(obj.field)
          })

          // 绑定重置按钮
          document.getElementById('resetPasswordBtn')?.addEventListener('click', PasswordModule.reset)
          document.getElementById('resetUsernameBtn')?.addEventListener('click', UsernameModule.reset)

          // 初始化加载
          getCurrentUsername()
        })
      })
    })()
  </script>
</section>
{{ end }}