49 lines
1.6 KiB
Swift
49 lines
1.6 KiB
Swift
import Foundation
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/// 文件传输服务：下载文件并通过协议发送二进制数据
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final class FileTransferService {
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private let protocolService: BleProtocolService
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init(protocolService: BleProtocolService) {
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self.protocolService = protocolService
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}
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/// 传输文件到设备
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/// - Parameters:
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/// - fileUri: 本地 file:// URL 或远程 https:// URL
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/// - commandType: 传输命令类型
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/// - onProgress: 进度回调 0.0 ~ 1.0
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func transferFile(
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fileUri: String,
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commandType: CommandType,
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onProgress: ((Double) -> Void)? = nil
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) async throws {
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BleLog.i("Load file: \(fileUri)", "Transfer")
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let data = try await loadFileData(from: fileUri)
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BleLog.d("File loaded: size=\(data.count) bytes", "Transfer")
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try await protocolService.send(
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type: commandType.rawValue,
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data: data,
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onProgress: onProgress
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)
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}
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private func loadFileData(from uri: String) async throws -> Data {
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guard let url = URL(string: uri) else {
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throw DuooomiBleError.transferFailed("Invalid URL: \(uri)")
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}
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if url.isFileURL {
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return try Data(contentsOf: url)
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} else {
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let (data, response) = try await URLSession.shared.data(from: url)
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guard let httpResponse = response as? HTTPURLResponse,
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(200...299).contains(httpResponse.statusCode) else {
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throw DuooomiBleError.transferFailed("Failed to download file: \(uri)")
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}
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return data
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}
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}
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}
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