StorageManager.swift

//
//  StorageManager.swift
//  SwiftAndroid
//
//  Created by Alsey Coleman Miller on 2/27/26.
//

#if os(Android)
import Android
import CAndroidNDK
#endif

/// Wrapper around Android `AStorageManager`.
public struct StorageManager: ~Copyable {

    internal let pointer: OpaquePointer

    internal init(pointer: OpaquePointer) {
        self.pointer = pointer
    }

    deinit {
        AStorageManager_delete(pointer)
    }
}

// MARK: - Initialization

public extension StorageManager {

    /// Creates an `AStorageManager` instance.
    init() throws(AndroidFileManagerError) {
        guard let pointer = AStorageManager_new() else {
            throw .invalidStorageManager
        }
        self.init(pointer: pointer)
    }
}

// MARK: - OBB Methods

public extension StorageManager {

    /// Asks Android to mount an OBB container.
    func mountObb(path: String, key: String? = nil) {
        path.withCString { pathCString in
            if let key {
                key.withCString { keyCString in
                    AStorageManager_mountObb(pointer, pathCString, keyCString, nil, nil)
                }
            } else {
                AStorageManager_mountObb(pointer, pathCString, nil, nil, nil)
            }
        }
    }

    /// Asks Android to unmount an OBB container.
    func unmountObb(path: String, force: Bool = false) {
        path.withCString {
            AStorageManager_unmountObb(pointer, $0, force ? 1 : 0, nil, nil)
        }
    }

    /// Returns whether the OBB at `path` is mounted.
    func isObbMounted(path: String) -> Bool {
        path.withCString { rawPath in
            AStorageManager_isObbMounted(pointer, rawPath) != 0
        }
    }

    /// Returns the mounted OBB path for a raw OBB path.
    func mountedObbPath(for path: String) -> String? {
        path.withCString { rawPath in
            guard let cString = AStorageManager_getMountedObbPath(pointer, rawPath) else {
                return nil
            }
            return String(cString: cString)
        }
    }
}