{% extends "base.html" %}

{% block title %}Admin Dashboard - AgentHub{% endblock %}

{% block content %}
<div class="container my-5">
  <!-- Header -->
  <div class="row mb-4">
    <div class="col-12">
      <div class="d-flex justify-content-between align-items-center">
        <div>
          <h2><i class="fas fa-users-cog me-3"></i>Admin Dashboard</h2>
          <p class="text-muted mb-0">Manage users and AI agents across the system</p>
        </div>
        <div class="d-flex gap-2">
          <button class="btn btn-outline-primary" id="refreshBtn">
            <i class="fas fa-sync-alt me-2"></i>Refresh
          </button>
          <button class="btn btn-outline-danger" onclick="logout()">
            <i class="fas fa-sign-out-alt me-2"></i>Logout
          </button>
        </div>
      </div>
    </div>
  </div>

  <!-- Statistics Cards -->
  <div class="row mb-4">
    <div class="col-lg-3 col-md-6 mb-3">
      <div class="stat-card">
        <div class="stat-icon">
          <i class="fas fa-users"></i>
        </div>
        <div class="stat-info">
          <h3 id="totalUsers">0</h3>
          <p>Total Users</p>
        </div>
      </div>
    </div>
    <div class="col-lg-3 col-md-6 mb-3">
      <div class="stat-card admin-card">
        <div class="stat-icon">
          <i class="fas fa-user-shield"></i>
        </div>
        <div class="stat-info">
          <h3 id="adminUsers">0</h3>
          <p>Admin Users</p>
        </div>
      </div>
    </div>
    <div class="col-lg-3 col-md-6 mb-3">
      <div class="stat-card agent-card">
        <div class="stat-icon">
          <i class="fas fa-robot"></i>
        </div>
        <div class="stat-info">
          <h3 id="totalAgents">0</h3>
          <p>Total Agents</p>
        </div>
      </div>
    </div>
    <div class="col-lg-3 col-md-6 mb-3">
      <div class="stat-card active-card">
        <div class="stat-icon">
          <i class="fas fa-user-check"></i>
        </div>
        <div class="stat-info">
          <h3 id="activeUsers">0</h3>
          <p>Active Users</p>
        </div>
      </div>
    </div>
  </div>

  <!-- Tabs Navigation -->
  <div class="row">
    <div class="col-12">
      <div class="card shadow-sm border-0">
        <div class="card-header bg-white">
          <ul class="nav nav-tabs card-header-tabs" id="adminTabs">
            <li class="nav-item">
              <a class="nav-link active" id="users-tab" data-bs-toggle="tab" href="#users">
                <i class="fas fa-users me-2"></i>Users Management
              </a>
            </li>
            <li class="nav-item">
              <a class="nav-link" id="agents-tab" data-bs-toggle="tab" href="#agents">
                <i class="fas fa-robot me-2"></i>Agents Management
              </a>
            </li>
          </ul>
        </div>
        <div class="card-body">
          <div class="tab-content" id="adminTabsContent">
            <!-- Users Management Tab -->
            <div class="tab-pane fade show active" id="users">
              <div class="d-flex justify-content-between align-items-center mb-3">
                <h5 class="mb-0">Agent Management</h5>
                <div class="input-group" style="width: 300px;">
                  <span class="input-group-text"><i class="fas fa-search"></i></span>
                  <input type="text" class="form-control" id="userSearch" placeholder="Search users...">
                </div>
              </div>
              
              <div class="table-responsive">
                <table class="table table-hover">
                  <thead>
                    <tr>
                      <th>User</th>
                      <th>Email</th>
                      <th>Type</th>
                      <th>Status</th>
                      <th>Agents</th>
                      <th>Created</th>
                      <th>Actions</th>
                    </tr>
                  </thead>
                  <tbody id="usersTableBody">
                    <tr>
                      <td colspan="7" class="text-center py-4">
                        <div class="spinner-border text-primary" role="status">
                          <span class="visually-hidden">Loading...</span>
                        </div>
                      </td>
                    </tr>
                  </tbody>
                </table>
              </div>
            </div>

            <!-- Agents Management Tab -->
            <div class="tab-pane fade" id="agents">
              <div class="d-flex justify-content-between align-items-center mb-3">
                <h5 class="mb-0">Agent Management</h5>
                <div class="d-flex gap-2">
                  <select class="form-select" id="agentStatusFilter" style="width: auto;">
                    <option value="">All Statuses</option>
                    <option value="Active">Active</option>
                    <option value="Development">Development</option>
                    <option value="Inactive">Inactive</option>
                    <option value="Deprecated">Deprecated</option>
                  </select>
                  <div class="input-group" style="width: 300px;">
                    <span class="input-group-text"><i class="fas fa-search"></i></span>
                    <input type="text" class="form-control" id="agentSearch" placeholder="Search agents...">
                  </div>
                </div>
              </div>
              
              <div class="table-responsive">
                <table class="table table-hover">
                  <thead>
                    <tr>
                      <th>Agent Name</th>
                      <th>Owner</th>
                      <th>Status</th>
                      <th>Version</th>
                      <th>Department</th>
                      <th>Created</th>
                      <th>Actions</th>
                    </tr>
                  </thead>
                  <tbody id="agentsTableBody">
                    <tr>
                      <td colspan="7" class="text-center py-4">
                        <div class="spinner-border text-primary" role="status">
                          <span class="visually-hidden">Loading...</span>
                        </div>
                      </td>
                    </tr>
                  </tbody>
                </table>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>

<!-- Edit User Modal -->
<div class="modal fade" id="editUserModal" tabindex="-1">
  <div class="modal-dialog">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title">Edit User</h5>
        <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
      </div>
      <div class="modal-body">
        <form id="editUserForm">
          <input type="hidden" id="editUserId">
          <div class="mb-3">
            <label for="editUserEmail" class="form-label">Email Address</label>
            <input type="email" class="form-control" id="editUserEmail" readonly>
          </div>
          <div class="mb-3">
            <label for="editUserFullName" class="form-label">Full Name</label>
            <input type="text" class="form-control" id="editUserFullName">
          </div>
          <div class="mb-3">
            <div class="form-check">
              <input class="form-check-input" type="checkbox" id="editUserIsActive">
              <label class="form-check-label" for="editUserIsActive">
                Account is active
              </label>
            </div>
          </div>
          <div class="mb-3">
            <div class="form-check">
              <input class="form-check-input" type="checkbox" id="editUserIsAdmin">
              <label class="form-check-label" for="editUserIsAdmin">
                User has admin privileges
              </label>
            </div>
          </div>
        </form>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-bs-dismiss="modal">Cancel</button>
        <button type="submit" form="editUserForm" class="btn btn-primary">Save Changes</button>
      </div>
    </div>
  </div>
</div>

<style>
.stat-card {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 16px;
  padding: 1.5rem;
  color: white;
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.admin-card {
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.agent-card {
  background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.active-card {
  background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.stat-icon {
  font-size: 2.5rem;
  margin-right: 1rem;
  opacity: 0.8;
}

.stat-info h3 {
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
}

.stat-info p {
  margin: 0;
  opacity: 0.9;
  font-size: 0.9rem;
}

.user-avatar-sm {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 600;
}

.table th {
  border-top: none;
  font-weight: 600;
  color: #2d3748;
  background-color: #f7fafc;
}

.table-hover tbody tr:hover {
  background-color: rgba(102, 126, 234, 0.05);
}

.card {
  border-radius: 16px;
  border: none;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.card-header {
  background: rgba(102, 126, 234, 0.05);
  border-bottom: 1px solid #e2e8f0;
  border-radius: 16px 16px 0 0 !important;
}

.nav-tabs .nav-link {
  border: none;
  color: #64748b;
  padding: 12px 20px;
}

.nav-tabs .nav-link.active {
  background-color: transparent;
  border-bottom: 2px solid #667eea;
  color: #667eea;
}

.status-Active { background-color: #d4edda; color: #155724; }
.status-Development { background-color: #fff3cd; color: #856404; }
.status-Inactive { background-color: #f8d7da; color: #721c24; }
.status-Deprecated { background-color: #e2e3e5; color: #41464b; }

@media (max-width: 768px) {
  .stat-card {
    text-align: center;
    flex-direction: column;
  }
  
  .stat-icon {
    margin-right: 0;
    margin-bottom: 0.5rem;
  }
  
  .table-responsive {
    font-size: 0.875rem;
  }
}
</style>

<script>
let allUsers = [];
let allAgents = [];

document.addEventListener('DOMContentLoaded', function() {
  loadAdminData();
  setupEventListeners();
});

function setupEventListeners() {
  document.getElementById('refreshBtn').addEventListener('click', loadAdminData);
  document.getElementById('userSearch').addEventListener('input', filterUsers);
  document.getElementById('agentSearch').addEventListener('input', filterAgents);
  document.getElementById('agentStatusFilter').addEventListener('change', filterAgents);
  document.getElementById('editUserForm').addEventListener('submit', handleEditUserSubmit);
}

async function loadAdminData() {
  try {
    // Load users and agents in parallel
    const [usersResponse, agentsResponse] = await Promise.all([
      fetch('{{ base_path }}/api/admin/users', {
        credentials: 'include'
      }),
      fetch('{{ base_path }}/api/admin/agents', {
        credentials: 'include'
      })
    ]);

    if (usersResponse.status === 401 || agentsResponse.status === 401) {
      window.location.href = '{{ base_path }}/login';
      return;
    }

    if (usersResponse.status === 403 || agentsResponse.status === 403) {
      alert('Admin access required');
      window.location.href = '{{ base_path }}/dashboard';
      return;
    }

    if (usersResponse.ok && agentsResponse.ok) {
      allUsers = await usersResponse.json();
      allAgents = await agentsResponse.json();
      
      updateStatistics();
      displayUsers(allUsers);
      displayAgents(allAgents);
    } else {
      throw new Error('Failed to load admin data');
    }
  } catch (error) {
    console.error('Error loading admin data:', error);
    showError('Failed to load admin data');
  }
}

function updateStatistics() {
  document.getElementById('totalUsers').textContent = allUsers.length;
  document.getElementById('adminUsers').textContent = allUsers.filter(u => u.is_admin).length;
  document.getElementById('totalAgents').textContent = allAgents.length;
  document.getElementById('activeUsers').textContent = allUsers.filter(u => u.is_active).length;
}

function displayUsers(users) {
  const tbody = document.getElementById('usersTableBody');
  
  if (users.length === 0) {
    tbody.innerHTML = '<tr><td colspan="7" class="text-center py-4">No users found</td></tr>';
    return;
  }
  
  const usersHtml = users.map(user => {
    const userAgents = allAgents.filter(agent => agent.created_by === user.email).length;
    return `
      <tr>
        <td>
          <div class="d-flex align-items-center">
            <div class="user-avatar-sm me-2">
              ${(user.full_name || user.email)[0].toUpperCase()}
            </div>
            <div>
              <div class="fw-medium">${user.full_name || 'No Name'}</div>
              <small class="text-muted">ID: ${user.email}</small>
            </div>
          </div>
        </td>
        <td>${user.email}</td>
        <td>
          <span class="badge ${user.is_admin ? 'bg-danger' : 'bg-primary'}">
            ${user.is_admin ? 'Admin' : 'User'}
          </span>
        </td>
        <td>
          <span class="badge ${user.is_active ? 'bg-success' : 'bg-secondary'}">
            ${user.is_active ? 'Active' : 'Inactive'}
          </span>
        </td>
        <td>
          <span class="badge bg-info">${userAgents}</span>
        </td>
        <td>
          <small class="text-muted">Recently</small>
        </td>
        <td>
          <button class="btn btn-outline-primary btn-sm me-1" onclick="viewUserDetails('${user.email}')">
            <i class="fas fa-eye"></i>
          </button>
          <button class="btn btn-outline-warning btn-sm me-1" onclick="editUser('${user.email}')">
            <i class="fas fa-edit"></i>
          </button>
          <button class="btn btn-outline-secondary btn-sm me-1" onclick="toggleUserStatus('${user.email}')">
            <i class="fas fa-${user.is_active ? 'ban' : 'check'}"></i>
          </button>
        </td>
      </tr>
    `;
  }).join('');
  
  tbody.innerHTML = usersHtml;
}

function displayAgents(agents) {
  const tbody = document.getElementById('agentsTableBody');
  
  if (agents.length === 0) {
    tbody.innerHTML = '<tr><td colspan="7" class="text-center py-4">No agents found</td></tr>';
    return;
  }
  
  const agentsHtml = agents.map(agent => {
    const owner = allUsers.find(u => u.email === agent.created_by);
    return `
      <tr>
        <td>
          <div class="fw-medium">${agent.agent_name}</div>
          <small class="text-muted">${agent.agent_description || 'No description'}</small>
        </td>
        <td>
          <div class="d-flex align-items-center">
            <div class="user-avatar-sm me-2">
              ${(owner?.full_name || owner?.email || 'U')[0].toUpperCase()}
            </div>
            <div>
              <div class="fw-medium">${owner?.full_name || 'Unknown'}</div>
              <small class="text-muted">${owner?.email || agent.created_by}</small>
            </div>
          </div>
        </td>
        <td>
          <span class="badge status-${agent.agent_status || 'Development'}">
            ${agent.agent_status || 'Development'}
          </span>
        </td>
        <td>${agent.agent_version || 'N/A'}</td>
        <td>${agent.agent_department || 'N/A'}</td>
        <td>
          <small class="text-muted">${formatDate(agent.agent_created_at)}</small>
        </td>
        <td>
          <button class="btn btn-outline-primary btn-sm me-1" onclick="viewAgentDetails('${agent.agent_id}')">
            <i class="fas fa-eye"></i>
          </button>
          <button class="btn btn-outline-danger btn-sm" onclick="deleteAgentAdmin('${agent.agent_id}')">
            <i class="fas fa-trash"></i>
          </button>
        </td>
      </tr>
    `;
  }).join('');
  
  tbody.innerHTML = agentsHtml;
}

function filterUsers() {
  const searchTerm = document.getElementById('userSearch').value.toLowerCase();
  const filtered = allUsers.filter(user => 
    (user.full_name || '').toLowerCase().includes(searchTerm) ||
    user.email.toLowerCase().includes(searchTerm)
  );
  displayUsers(filtered);
}

function filterAgents() {
  const searchTerm = document.getElementById('agentSearch').value.toLowerCase();
  const statusFilter = document.getElementById('agentStatusFilter').value;
  
  let filtered = allAgents.filter(agent => {
    const matchesSearch = agent.agent_name.toLowerCase().includes(searchTerm) ||
                         (agent.agent_description || '').toLowerCase().includes(searchTerm);
    const matchesStatus = !statusFilter || agent.agent_status === statusFilter;
    return matchesSearch && matchesStatus;
  });
  
  displayAgents(filtered);
}

function viewUserDetails(email) {
  const user = allUsers.find(u => u.email === email);
  const userAgents = allAgents.filter(agent => agent.created_by === email);
  
  alert(`User Details:\nName: ${user.full_name || 'No Name'}\nEmail: ${user.email}\nType: ${user.is_admin ? 'Admin' : 'User'}\nStatus: ${user.is_active ? 'Active' : 'Inactive'}\nAgents Created: ${userAgents.length}`);
}

function viewAgentDetails(agentId) {
  const agent = allAgents.find(a => a.agent_id === agentId);
  if (!agent) return;
  
  alert(`Agent Details:\nName: ${agent.agent_name}\nStatus: ${agent.agent_status || 'Development'}\nVersion: ${agent.agent_version || 'N/A'}\nDescription: ${agent.agent_description || 'No description'}\nOwner: ${agent.created_by}`);
}

function editUser(email) {
  const user = allUsers.find(u => u.email === email);
  if (!user) return;
  
  // Populate the edit form
  document.getElementById('editUserId').value = user.email;
  document.getElementById('editUserEmail').value = user.email;
  document.getElementById('editUserFullName').value = user.full_name || '';
  document.getElementById('editUserIsActive').checked = user.is_active;
  document.getElementById('editUserIsAdmin').checked = user.is_admin;
  
  // Show the modal
  const modal = new bootstrap.Modal(document.getElementById('editUserModal'));
  modal.show();
}

async function toggleUserStatus(email) {
  const user = allUsers.find(u => u.email === email);
  if (!user) return;
  
  const newStatus = !user.is_active;
  const action = newStatus ? 'activate' : 'deactivate';
  
  if (!confirm(`Are you sure you want to ${action} this user?`)) {
    return;
  }
  
  try {
    const response = await fetch(`{{ base_path }}/api/admin/users/${encodeURIComponent(email)}`, {
      method: 'PUT',
      headers: {
        'Content-Type': 'application/json'
      },
      credentials: 'include',
      body: JSON.stringify({
        full_name: user.full_name,
        is_active: newStatus,
        is_admin: user.is_admin
      })
    });
    
    if (response.ok) {
      await loadAdminData();
      showSuccess(`User ${action}d successfully`);
    } else {
      const error = await response.json();
      showError(error.detail || `Failed to ${action} user`);
    }
  } catch (error) {
    showError(`Failed to ${action} user`);
  }
}

async function deleteAgentAdmin(agentId) {
  if (!confirm('Are you sure you want to delete this agent? This action cannot be undone.')) {
    return;
  }
  
  try {
    const response = await fetch(`{{ base_path }}/api/agents/${agentId}`, {
      method: 'DELETE',
      credentials: 'include'
    });
    
    if (response.ok) {
      await loadAdminData();
      showSuccess('Agent deleted successfully');
    } else {
      const error = await response.json();
      showError(error.detail || 'Failed to delete agent');
    }
  } catch (error) {
    showError('Failed to delete agent');
  }
}

function formatDate(dateString) {
  if (!dateString) return 'N/A';
  const date = new Date(dateString);
  return date.toLocaleDateString();
}

function showSuccess(message) {
  alert(message);
}

function showError(message) {
  alert('Error: ' + message);
}

async function handleEditUserSubmit(e) {
  e.preventDefault();
  
  const email = document.getElementById('editUserId').value;
  const fullName = document.getElementById('editUserFullName').value;
  const isActive = document.getElementById('editUserIsActive').checked;
  const isAdmin = document.getElementById('editUserIsAdmin').checked;
  
  try {
    const response = await fetch(`{{ base_path }}/api/admin/users/${encodeURIComponent(email)}`, {
      method: 'PUT',
      headers: {
        'Content-Type': 'application/json'
      },
      credentials: 'include',
      body: JSON.stringify({
        full_name: fullName,
        is_active: isActive,
        is_admin: isAdmin
      })
    });
    
    if (response.ok) {
      // Hide the modal
      const modal = bootstrap.Modal.getInstance(document.getElementById('editUserModal'));
      modal.hide();
      
      // Reload data and show success
      await loadAdminData();
      showSuccess('User updated successfully');
    } else {
      const error = await response.json();
      showError(error.detail || 'Failed to update user');
    }
  } catch (error) {
    showError('Failed to update user');
  }
}

function logout() {
  localStorage.removeItem('access_token');
  window.location.href = '{{ base_path }}/';
}
</script>
{% endblock %}