package components

import (
    "context"
    "fmt"
    "strings"
)

type RoleFormData struct {
    Role          *Role
    IsNew         bool
    ErrorMessage  string
    AllPermissions []string
}

templ AdminRoleForm(ctx context.Context, data RoleFormData) {
    @LayoutWithContext(getFormTitle(data.IsNew), ctx) {
        <div class="mb-6">
            <nav class="flex" aria-label="Breadcrumb">
                <ol class="inline-flex items-center space-x-1 md:space-x-3">
                    <li class="inline-flex items-center">
                        <a href="/admin" class="inline-flex items-center text-sm font-medium text-gray-700 hover:text-blue-600 dark:text-gray-400 dark:hover:text-white">
                            <i class="fas fa-shield-alt w-4 h-4 mr-2"></i>
                            Admin
                        </a>
                    </li>
                    <li>
                        <div class="flex items-center">
                            <i class="fas fa-chevron-right w-3 h-3 text-gray-400 mx-1"></i>
                            <a href="/admin/roles" class="ml-1 text-sm font-medium text-gray-700 hover:text-blue-600 md:ml-2 dark:text-gray-400 dark:hover:text-white">Roles</a>
                        </div>
                    </li>
                    <li aria-current="page">
                        <div class="flex items-center">
                            <i class="fas fa-chevron-right w-3 h-3 text-gray-400 mx-1"></i>
                            <span class="ml-1 text-sm font-medium text-gray-500 md:ml-2 dark:text-gray-400">
                                if data.IsNew {
                                    New Role
                                } else {
                                    Edit Role
                                }
                            </span>
                        </div>
                    </li>
                </ol>
            </nav>
        </div>

        if data.ErrorMessage != "" {
            <div class="p-4 mb-6 text-sm text-red-800 rounded-lg bg-red-50 dark:bg-red-900/50 dark:text-red-400" role="alert">
                <span class="font-medium">Error!</span> { data.ErrorMessage }
            </div>
        }

        <div class="bg-white rounded-lg shadow-sm dark:bg-gray-800">
            <div class="p-6 space-y-6">
                <form method="POST" action={ getFormAction(data.IsNew, data.Role) }>
                    if !data.IsNew {
                        <input type="hidden" name="_method" value="PUT"/>
                    }
                    
                    <!-- Role Name -->
                    <div class="mb-6">
                        <label for="name" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Role Name</label>
                        <input
                            type="text"
                            id="name"
                            name="name"
                            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"
                            placeholder="Enter role name"
                            required
                            if !data.IsNew {
                                value={ data.Role.Name }
                            }
                        />
                    </div>

                    <!-- Role Description -->
                    <div class="mb-6">
                        <label for="description" class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Description</label>
                        <textarea
                            id="description"
                            name="description"
                            rows="3"
                            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"
                            placeholder="Enter role description"
                        >
                            if !data.IsNew {
                                { data.Role.Description }
                            }
                        </textarea>
                    </div>

                    <!-- Permissions -->
                    <div class="mb-6">
                        <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">Permissions</label>
                        <div class="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-4">
                            for _, perm := range data.AllPermissions {
                                <div class="flex items-center">
                                    <input
                                        type="checkbox"
                                        id={ "perm_" + perm }
                                        name="permissions[]"
                                        value={ perm }
                                        class="w-4 h-4 text-blue-600 bg-gray-100 border-gray-300 rounded focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600"
                                        if !data.IsNew && hasPermission(data.Role, perm) {
                                            checked
                                        }
                                    />
                                    <label for={ "perm_" + perm } class="ml-2 text-sm font-medium text-gray-900 dark:text-gray-300">
                                        { formatPermissionLabel(perm) }
                                    </label>
                                </div>
                            }
                        </div>
                    </div>

                    <!-- Form Actions -->
                    <div class="flex items-center justify-end space-x-3">
                        <a href="/admin/roles" class="text-gray-500 bg-white hover:bg-gray-100 focus:ring-4 focus:outline-none focus:ring-blue-300 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">
                            Cancel
                        </a>
                        <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">
                            if data.IsNew {
                                Create Role
                            } else {
                                Update Role
                            }
                        </button>
                    </div>
                </form>
            </div>
        </div>
    }
}

// Helper functions
func getFormTitle(isNew bool) string {
    if isNew {
        return "New Role"
    }
    return "Edit Role"
}

func getFormAction(isNew bool, role *Role) templ.SafeURL {
    if isNew {
        return "/admin/roles"
    }
    return templ.SafeURL("/admin/roles/" + fmt.Sprint(role.ID))
}

func hasPermission(role *Role, permission string) bool {
    if role == nil || role.Permissions == nil {
        return false
    }
    for _, p := range role.Permissions {
        if p == permission {
            return true
        }
    }
    return false
}

func formatPermissionLabel(permission string) string {
    // Convert permission strings like "users.create" to "Create Users"
    parts := strings.Split(permission, ".")
    if len(parts) != 2 {
        return permission
    }
    
    resource := strings.Title(parts[0])
    action := strings.Title(parts[1])
    
    return action + " " + resource
}