package components

import (
	"context"
	"github.com/starfleetcptn/gomft/internal/db"
	"strconv"
)

type UserManagementData struct {
	Users       []db.User
	Roles       []db.Role
	ActiveTab   string // "list", "create", or "edit"
	EditUser    *db.User
	UserRoles   []db.Role
	ErrorMessage string
}

templ UserManagement(ctx context.Context, data UserManagementData) {
	@LayoutWithContext("User Management", ctx) {
		<div class="p-4 md:p-6 2xl:p-10">
			<!-- Header -->
			<div class="mb-6 flex flex-col md:flex-row md:items-center md:justify-between gap-4">
				<h1 class="text-2xl font-bold text-gray-900 dark:text-white flex items-center">
					<i class="fas fa-users w-6 h-6 mr-2 text-blue-500"></i>
					User Management
				</h1>
				<div class="flex items-center space-x-2">
					<button 
						class="flex items-center justify-center text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:ring-blue-300 font-medium rounded-lg px-5 py-2.5 dark:bg-blue-600 dark:hover:bg-blue-700 focus:outline-none dark:focus:ring-blue-800"
						hx-get="/admin/users/new" 
						hx-target="#user-management-content" 
						hx-push-url="true"
					>
						<i class="fas fa-user-plus w-4 h-4 mr-2"></i>
						Add User
					</button>
					<button 
						class="flex items-center justify-center text-gray-500 bg-white hover:bg-gray-100 focus:ring-4 focus:ring-gray-300 font-medium rounded-lg px-5 py-2.5 dark:bg-gray-800 dark:hover:bg-gray-700 dark:text-gray-300 dark:focus:ring-gray-700 border border-gray-200 dark:border-gray-600"
						hx-get="/admin/users" 
						hx-target="#user-management-content" 
						hx-push-url="true"
					>
						<i class="fas fa-list w-4 h-4 mr-2"></i>
						View All Users
					</button>
				</div>
			</div>
			
			<!-- Status and Error Messages -->
			<div id="status-message" class="hidden mb-4 p-4 text-sm text-green-700 bg-green-100 rounded-lg dark:bg-green-200 dark:text-green-800" role="alert"></div>
			
			if data.ErrorMessage != "" {
				<div id="error-message" class="mb-4 p-4 text-sm text-red-700 bg-red-100 rounded-lg dark:bg-red-200 dark:text-red-800" role="alert">
					<div class="font-medium">{ data.ErrorMessage }</div>
				</div>
			}
			
			<!-- Content -->
			<div id="user-management-content">
				if data.ActiveTab == "list" || data.ActiveTab == "" {
					@userList(data.Users)
				} else if data.ActiveTab == "create" {
					@userForm(nil, true, data.Roles)
				} else if data.ActiveTab == "edit" && data.EditUser != nil {
					@userForm(data.EditUser, false, data.Roles)
				}
			</div>
			
			<!-- Help Notice -->
			<div class="mt-8">
				<div class="flex p-4 text-sm text-blue-800 rounded-lg bg-blue-50 dark:bg-blue-900 dark:text-blue-400" role="alert">
					<i class="fas fa-shield-alt flex-shrink-0 inline w-4 h-4 me-3 mt-0.5"></i>
					<span class="sr-only">Info</span>
					<div>
						User accounts provide secure access to the GoMFT application with role-based permissions
					</div>
				</div>
			</div>
		</div>
	}
}

// User listing component
templ userList(users []db.User) {
	<div class="bg-white border border-gray-200 rounded-lg shadow-sm dark:border-gray-700 dark:bg-gray-800 overflow-hidden">
		<div class="overflow-x-auto">
			<table class="w-full text-sm text-left text-gray-500 dark:text-gray-400">
				<thead class="text-xs text-gray-700 uppercase bg-gray-50 dark:bg-gray-700 dark:text-gray-400">
					<tr>
						<th scope="col" class="px-6 py-3">
							<div class="flex items-center">
								<i class="fas fa-envelope w-4 h-4 mr-1"></i>
								Email
							</div>
						</th>
						<th scope="col" class="px-6 py-3">
							<div class="flex items-center">
								<i class="fas fa-user-tag w-4 h-4 mr-1"></i>
								Role
							</div>
						</th>
						<th scope="col" class="px-6 py-3">
							<div class="flex items-center">
								<i class="fas fa-clock w-4 h-4 mr-1"></i>
								Status
							</div>
						</th>
						<th scope="col" class="px-6 py-3">
							<span class="sr-only">Actions</span>
						</th>
					</tr>
				</thead>
				<tbody>
					if len(users) == 0 {
						<tr class="bg-white border-b dark:bg-gray-800 dark:border-gray-700">
							<td colspan="4" class="px-6 py-4 whitespace-nowrap text-center text-sm text-gray-500 dark:text-gray-400">
								No users found. Click the "Add User" button to create your first user.
							</td>
						</tr>
					} else {
						for _, user := range users {
							<tr class="bg-white border-b dark:bg-gray-800 dark:border-gray-700 hover:bg-gray-50 dark:hover:bg-gray-600">
								<td class="px-6 py-4 font-medium text-gray-900 whitespace-nowrap dark:text-white">
									{ user.Email }
								</td>
								<td class="px-6 py-4">
									if user.GetIsAdmin() {
										<span class="bg-blue-100 text-blue-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-full dark:bg-blue-900 dark:text-blue-300">
											<i class="fas fa-user-shield w-3 h-3 mr-1"></i> Admin
										</span>
									} else {
										<span class="bg-gray-100 text-gray-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-full dark:bg-gray-700 dark:text-gray-300">
											<i class="fas fa-user w-3 h-3 mr-1"></i> User
										</span>
									}
								</td>
								<td class="px-6 py-4">
									if user.GetAccountLocked() {
										<span class="bg-red-100 text-red-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-full dark:bg-red-900 dark:text-red-300">
											<i class="fas fa-lock w-3 h-3 mr-1"></i> Locked
										</span>
									} else {
										<span class="bg-green-100 text-green-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-full dark:bg-green-900 dark:text-green-300">
											<i class="fas fa-check-circle w-3 h-3 mr-1"></i> Active
										</span>
									}
								</td>
								<td class="px-6 py-4 text-right">
									<button
										class="text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:outline-none focus:ring-blue-300 font-medium rounded-lg text-sm px-3 py-1.5 text-center inline-flex items-center me-2 dark:bg-blue-600 dark:hover:bg-blue-700 dark:focus:ring-blue-800"
										hx-get={ "/admin/users/" + strconv.Itoa(int(user.ID)) + "/edit" }
										hx-target="#user-management-content"
										hx-push-url="true"
									>
										<i class="fas fa-edit w-3.5 h-3.5 mr-1.5"></i> Edit
									</button>
									
									<button
										class="text-white bg-red-700 hover:bg-red-800 focus:ring-4 focus:outline-none focus:ring-red-300 font-medium rounded-lg text-sm px-3 py-1.5 text-center inline-flex items-center dark:bg-red-600 dark:hover:bg-red-700 dark:focus:ring-red-800"
										hx-delete={ "/admin/users/" + strconv.Itoa(int(user.ID)) }
										hx-confirm="Are you sure you want to delete this user? This action cannot be undone."
										hx-target="#user-management-content"
									>
										<i class="fas fa-trash-alt w-3.5 h-3.5 mr-1.5"></i> Delete
									</button>
								</td>
							</tr>
						}
					}
				</tbody>
			</table>
		</div>
	</div>
}

// User form component for creating/editing users
templ userForm(user *db.User, isNew bool, availableRoles []db.Role) {
	<div class="bg-white border border-gray-200 rounded-lg shadow-sm dark:border-gray-700 dark:bg-gray-800 overflow-hidden">
		<div class="p-6">
			<div class="mb-6">
				<h3 class="text-lg font-medium leading-none text-gray-900 dark:text-white">
					if isNew {
						Create New User
					} else {
						Edit User: { user.Email }
					}
				</h3>
				<p class="mt-1 text-sm text-gray-500 dark:text-gray-400">
					if isNew {
						Create a new user account with appropriate permissions.
					} else {
						Update user information and permissions.
					}
				</p>
			</div>
			
			<form 
				class="space-y-6" 
				if isNew {
					hx-post="/admin/users"
				} else {
					hx-put={ "/admin/users/" + strconv.Itoa(int(user.ID)) }
				}
				hx-target="#user-management-content"
				x-data="{ 
					password: '',
					confirmPassword: '',
					isAdmin: false,
					passwordsMatch() {
						return this.password === this.confirmPassword || this.confirmPassword === '';
					}
				}"
			>
				<div class="space-y-4">
					<div>
						<label for="email" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Email</label>
						<input 
							type="email" 
							name="email" 
							id="email" 
							required 
							class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
							placeholder="user@example.com"
							if !isNew {
								value={ user.Email }
							}
						/>
					</div>
					
					<div>
						<label for="password" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">
							if isNew {
								Password
							} else {
								New Password (leave blank to keep current)
							}
						</label>
						<input 
							type="password" 
							name="password" 
							id="password" 
							x-model="password"
							class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
							placeholder="••••••••" 
							if isNew {
								required="true"
							}
						/>
					</div>
					
					<div>
						<label for="password_confirm" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Confirm Password</label>
						<input 
							type="password" 
							name="password_confirm" 
							id="password_confirm" 
							x-model="confirmPassword"
							class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500" 
							placeholder="••••••••" 
							if isNew {
								required="true"
							}
						/>
						<p class="mt-1 text-sm text-red-600 dark:text-red-500" x-show="!passwordsMatch() && confirmPassword !== ''">
							Passwords do not match
						</p>
					</div>
					
					<div class="pt-2">
						<div class="flex items-start">
							<div class="flex items-center h-5">
								<input 
									id="is_admin" 
									name="is_admin" 
									type="checkbox" 
									class="w-4 h-4 border border-gray-300 rounded bg-gray-50 focus:ring-3 focus:ring-blue-300 dark:bg-gray-700 dark:border-gray-600 dark:focus:ring-blue-600 dark:ring-offset-gray-800 dark:focus:ring-offset-gray-800" 
									if !isNew && user.GetIsAdmin() {
										checked="true"
									}
								/>
							</div>
							<div class="ml-3 text-sm">
								<label for="is_admin" class="font-medium text-gray-900 dark:text-white">Administrator</label>
								<p class="text-xs font-normal text-gray-500 dark:text-gray-400">Grant administrative privileges to this user</p>
							</div>
						</div>
					</div>

					if !isNew {
						<div class="border-t border-gray-200 dark:border-gray-700 pt-4 mt-4">
							<h4 class="text-base font-medium text-gray-900 dark:text-white mb-2">Account Status</h4>
							
							<div class="flex items-start">
								<div class="flex items-center h-5">
									<input 
										id="account_locked" 
										name="account_locked" 
										type="checkbox" 
										class="w-4 h-4 border border-gray-300 rounded bg-gray-50 focus:ring-3 focus:ring-blue-300 dark:bg-gray-700 dark:border-gray-600 dark:focus:ring-blue-600 dark:ring-offset-gray-800 dark:focus:ring-offset-gray-800" 
										if user.GetAccountLocked() {
											checked="true"
										}
									/>
								</div>
								<div class="ml-3 text-sm">
									<label for="account_locked" class="font-medium text-gray-900 dark:text-white">Lock Account</label>
									<p class="text-xs font-normal text-gray-500 dark:text-gray-400">Prevent user from logging in</p>
								</div>
							</div>
						</div>
					}
					
					if len(availableRoles) > 0 {
						<div class="border-t border-gray-200 dark:border-gray-700 pt-4 mt-4">
							<h4 class="text-base font-medium text-gray-900 dark:text-white mb-2">Roles</h4>
							<div class="space-y-2">
								for _, role := range availableRoles {
									<div class="flex items-start">
										<div class="flex items-center h-5">
											<input 
												id={ "role_" + strconv.Itoa(int(role.ID)) }
												name="roles[]" 
												value={ strconv.Itoa(int(role.ID)) }
												type="checkbox" 
												class="w-4 h-4 border border-gray-300 rounded bg-gray-50 focus:ring-3 focus:ring-blue-300 dark:bg-gray-700 dark:border-gray-600 dark:focus:ring-blue-600 dark:ring-offset-gray-800 dark:focus:ring-offset-gray-800"
												if !isNew && hasRole(user, role.ID) {
													checked="true"
												}
											/>
										</div>
										<div class="ml-3 text-sm">
											<label for={ "role_" + strconv.Itoa(int(role.ID)) } class="font-medium text-gray-900 dark:text-white">{ role.Name }</label>
											<p class="text-xs font-normal text-gray-500 dark:text-gray-400">{ role.Description }</p>
										</div>
									</div>
								}
							</div>
						</div>
					}
				</div>
				
				<div class="flex items-center justify-between pt-4 border-t border-gray-200 dark:border-gray-700">
					<button
						type="button"
						class="text-gray-500 bg-white hover:bg-gray-100 focus:ring-4 focus:outline-none focus:ring-gray-200 rounded-lg border border-gray-200 text-sm font-medium px-5 py-2.5 hover:text-gray-900 focus:z-10 dark:bg-gray-700 dark:text-gray-300 dark:border-gray-500 dark:hover:text-white dark:hover:bg-gray-600 dark:focus:ring-gray-600"
						hx-get="/admin/users"
						hx-target="#user-management-content"
						hx-push-url="true"
					>
						<i class="fas fa-arrow-left mr-2"></i>
						Cancel
					</button>
					<button 
						type="submit" 
						class="text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:outline-none focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 text-center dark:bg-blue-600 dark:hover:bg-blue-700 dark:focus:ring-blue-800"
						x-bind:disabled="!passwordsMatch() && confirmPassword !== ''"
					>
						<i class="fas fa-save mr-2"></i>
						if isNew {
							Create User
						} else {
							Update User
						}
					</button>
				</div>
			</form>
		</div>
	</div>
}

// Helper function to check if a user has a specific role
func hasRole(user *db.User, roleID uint) bool {
	for _, role := range user.Roles {
		if role.ID == roleID {
			return true
		}
	}
	return false
}