<?php

/**
 * POST capture and save map image
 */

return [
    'pattern' => 'map-editor/pages/(:all)/capture-image',
    'method' => 'POST',
    'auth' => false,
    'action' => function (string $pageId) {
        try {
            $user = kirby()->user();

            if (!$user && !kirby()->option('debug', false)) {
                return [
                    'status' => 'error',
                    'message' => 'Unauthorized',
                    'code' => 401
                ];
            }

            $mapPage = kirby()->page($pageId);
            if (!$mapPage) {
                return [
                    'status' => 'error',
                    'message' => 'Map page not found',
                    'code' => 404
                ];
            }

            if (!$mapPage->permissions()->can('update')) {
                return [
                    'status' => 'error',
                    'message' => 'Forbidden',
                    'code' => 403
                ];
            }

            $data = kirby()->request()->data();

            if (!isset($data['image'])) {
                return [
                    'status' => 'error',
                    'message' => 'Image data is required',
                    'code' => 400
                ];
            }

            $imageData = $data['image'];
            if (preg_match('/^data:image\/(png|jpeg|jpg);base64,(.+)$/', $imageData, $matches)) {
                $imageData = $matches[2];
                $extension = $matches[1] === 'jpeg' ? 'jpg' : $matches[1];
            } else {
                return [
                    'status' => 'error',
                    'message' => 'Invalid image format',
                    'code' => 400
                ];
            }

            $decodedImage = base64_decode($imageData);
            if ($decodedImage === false) {
                return [
                    'status' => 'error',
                    'message' => 'Failed to decode image',
                    'code' => 400
                ];
            }

            $filename = 'map-static.' . $extension;
            $tempPath = sys_get_temp_dir() . '/' . uniqid() . '.' . $extension;
            file_put_contents($tempPath, $decodedImage);

            $existingFile = $mapPage->files()->filterBy('name', 'map-static')->first();
            if ($existingFile) {
                $existingFile->delete();
            }

            try {
                $file = $mapPage->createFile([
                    'source' => $tempPath,
                    'filename' => $filename
                ]);

                @unlink($tempPath);
            } catch (Exception $e) {
                @unlink($tempPath);
                throw $e;
            }

            return [
                'status' => 'success',
                'data' => [
                    'message' => 'Image saved successfully',
                    'filename' => $filename,
                    'path' => $file->root()
                ]
            ];

        } catch (Exception $e) {
            return [
                'status' => 'error',
                'message' => $e->getMessage(),
                'code' => 500
            ];
        }
    }
];