<?php

namespace App\Livewire\Security;

use App\Models\InstanceSettings;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use Laravel\Sanctum\PersonalAccessToken;
use Livewire\Component;

class ApiTokens extends Component
{
    use AuthorizesRequests;

    public ?string $description = null;

    public $tokens = [];

    public array $permissions = ['read'];

    public $isApiEnabled;

    public bool $canUseRootPermissions = false;

    public bool $canUseWritePermissions = false;

    public bool $canUseDeployPermissions = false;

    public bool $canUseSensitivePermissions = false;

    public function render()
    {
        return view('livewire.security.api-tokens');
    }

    public function mount()
    {
        $this->isApiEnabled = InstanceSettings::get()->is_api_enabled;
        $this->canUseRootPermissions = auth()->user()->can('useRootPermissions', PersonalAccessToken::class);
        $this->canUseWritePermissions = auth()->user()->can('useWritePermissions', PersonalAccessToken::class);
        $this->canUseDeployPermissions = auth()->user()->can('useDeployPermissions', PersonalAccessToken::class);
        $this->canUseSensitivePermissions = auth()->user()->can('useSensitivePermissions', PersonalAccessToken::class);
        $this->getTokens();
    }

    private function getTokens()
    {
        $this->tokens = auth()->user()->tokens->sortByDesc('created_at');
    }

    public function updatedPermissions($permissionToUpdate)
    {
        // Re-evaluate policies fresh — never trust stored snapshot booleans
        if ($permissionToUpdate == 'root' && ! auth()->user()->can('useRootPermissions', PersonalAccessToken::class)) {
            $this->dispatch('error', 'You do not have permission to use root permissions.');
            $this->permissions = array_diff($this->permissions, ['root']);

            return;
        }

        if (in_array($permissionToUpdate, ['write', 'write:sensitive']) && ! auth()->user()->can('useWritePermissions', PersonalAccessToken::class)) {
            $this->dispatch('error', 'You do not have permission to use write permissions.');
            $this->permissions = array_diff($this->permissions, ['write', 'write:sensitive']);

            return;
        }

        if ($permissionToUpdate == 'deploy' && ! auth()->user()->can('useDeployPermissions', PersonalAccessToken::class)) {
            $this->dispatch('error', 'You do not have permission to use deploy permissions.');
            $this->permissions = array_diff($this->permissions, ['deploy']);

            return;
        }

        if ($permissionToUpdate == 'read:sensitive' && ! auth()->user()->can('useSensitivePermissions', PersonalAccessToken::class)) {
            $this->dispatch('error', 'You do not have permission to use read:sensitive permissions.');
            $this->permissions = array_diff($this->permissions, ['read:sensitive']);

            return;
        }

        if ($permissionToUpdate == 'root') {
            $this->permissions = ['root'];
        } elseif ($permissionToUpdate == 'read:sensitive' && ! in_array('read', $this->permissions)) {
            $this->permissions[] = 'read';
        } elseif ($permissionToUpdate == 'deploy') {
            $this->permissions = ['deploy'];
        } else {
            if (count($this->permissions) == 0) {
                $this->permissions = ['read'];
            }
        }
        sort($this->permissions);
    }

    public function addNewToken()
    {
        try {
            $this->authorize('create', PersonalAccessToken::class);

            // Re-evaluate policies fresh against the current authenticated user.
            // Never trust $this->canUse* booleans — they come from the Livewire
            // snapshot which can be replayed from another user's session.
            if (in_array('root', $this->permissions) && ! auth()->user()->can('useRootPermissions', PersonalAccessToken::class)) {
                throw new \Exception('You do not have permission to create tokens with root permissions.');
            }

            if (array_intersect(['write', 'write:sensitive'], $this->permissions) && ! auth()->user()->can('useWritePermissions', PersonalAccessToken::class)) {
                throw new \Exception('You do not have permission to create tokens with write permissions.');
            }

            if (in_array('deploy', $this->permissions) && ! auth()->user()->can('useDeployPermissions', PersonalAccessToken::class)) {
                throw new \Exception('You do not have permission to create tokens with deploy permissions.');
            }

            if (in_array('read:sensitive', $this->permissions) && ! auth()->user()->can('useSensitivePermissions', PersonalAccessToken::class)) {
                throw new \Exception('You do not have permission to create tokens with read:sensitive permissions.');
            }

            $this->validate([
                'description' => 'required|min:3|max:255',
            ]);
            $token = auth()->user()->createToken($this->description, array_values($this->permissions));
            $this->getTokens();
            // Do NOT strip the numeric prefix (e.g. "69|...") — Sanctum uses it to index and look up tokens.
            session()->flash('token', $token->plainTextToken);
        } catch (\Exception $e) {
            return handleError($e, $this);
        }
    }

    public function revoke(int $id)
    {
        try {
            $token = auth()->user()->tokens()->where('id', $id)->firstOrFail();
            $this->authorize('delete', $token);
            $token->delete();
            $this->getTokens();
        } catch (\Exception $e) {
            return handleError($e, $this);
        }
    }
}