<?php

declare(strict_types=1);

return [
    'provider' => getenv('FLYSYSTEM_OFFLOAD_PROVIDER') ?: 'webdav',
    'visibility' => getenv('FLYSYSTEM_OFFLOAD_DEFAULT_VISIBILITY') ?: 'public',

    'stream' => [
        'protocol' => getenv('FLYSYSTEM_OFFLOAD_STREAM_PROTOCOL') ?: 'webdav',
        'root_prefix' => getenv('FLYSYSTEM_OFFLOAD_STREAM_ROOT_PREFIX') ?: '',
        'host' => getenv('FLYSYSTEM_OFFLOAD_STREAM_HOST') ?: '',
    ],

    'uploads' => [
        'base_url' => getenv('FLYSYSTEM_OFFLOAD_BASE_URL') 
            ?: (getenv('FLYSYSTEM_OFFLOAD_WEBDAV_BASE_URL') 
                ? rtrim(getenv('FLYSYSTEM_OFFLOAD_WEBDAV_BASE_URL'), '/') . '/' . trim(getenv('FLYSYSTEM_OFFLOAD_WEBDAV_PREFIX') ?: 'wordpress/uploads', '/')
                : content_url('uploads')),
        'delete_remote' => filter_var(
            getenv('FLYSYSTEM_OFFLOAD_DELETE_REMOTE') ?: 'true',
            FILTER_VALIDATE_BOOLEAN
        ),
        'prefer_local_for_missing' => filter_var(
            getenv('FLYSYSTEM_OFFLOAD_PREFER_LOCAL_FOR_MISSING') ?: 'false',
            FILTER_VALIDATE_BOOLEAN
        ),
    ],

    'admin' => [
        'enabled' => filter_var(
            getenv('FLYSYSTEM_OFFLOAD_ADMIN_ENABLED') ?: 'true',
            FILTER_VALIDATE_BOOLEAN
        ),
    ],

    's3' => [
        'key' => getenv('AWS_ACCESS_KEY_ID') ?: null,
        'secret' => getenv('AWS_SECRET_ACCESS_KEY') ?: null,
        'session_token' => getenv('AWS_SESSION_TOKEN') ?: null,
        'region' => getenv('AWS_DEFAULT_REGION') ?: 'us-east-1',
        'bucket' => getenv('FLYSYSTEM_OFFLOAD_BUCKET') ?: 'your-bucket-name',
        'prefix' => getenv('FLYSYSTEM_OFFLOAD_PREFIX') ?: null,
        'endpoint' => getenv('FLYSYSTEM_OFFLOAD_ENDPOINT') ?: null,
        'use_path_style_endpoint' => filter_var(
            getenv('AWS_USE_PATH_STYLE_ENDPOINT') ?: 'false',
            FILTER_VALIDATE_BOOLEAN
        ),
        'version' => 'latest',
        'options' => [],
    ],

    'webdav' => [
        'enabled' => filter_var(
            getenv('FLYSYSTEM_OFFLOAD_WEBDAV_ENABLED') ?: 'true',
            FILTER_VALIDATE_BOOLEAN
        ),
        'base_url' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_BASE_URL') ?: 'https://webdav.example.com',
        'endpoint' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_ENDPOINT') ?: getenv('FLYSYSTEM_OFFLOAD_WEBDAV_BASE_URL') ?: '',
        'prefix' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_PREFIX') ?: 'wordpress/uploads',
        'credentials' => [
            'username' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_USERNAME') ?: '',
            'password' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_PASSWORD') ?: '',
            'auth_type' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_AUTH_TYPE') ?: 'basic',
        ],
        'stream' => [
            'register' => filter_var(
                getenv('FLYSYSTEM_OFFLOAD_WEBDAV_STREAM_REGISTER') ?: 'true',
                FILTER_VALIDATE_BOOLEAN
            ),
            'protocol' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_STREAM_PROTOCOL') ?: 'webdav',
        ],
        'default_headers' => [
            'Cache-Control' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_CACHE_CONTROL') ?: 'public, max-age=31536000',
            'Expires' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_EXPIRES')
                ?: gmdate('D, d M Y H:i:s \G\M\T', strtotime('+1 year')),
        ],
        'default_visibility' => getenv('FLYSYSTEM_OFFLOAD_WEBDAV_VISIBILITY') ?: 'public',
    ],
];