first commit

2026-03-01 14:04:44 +08:00
commit 61e97da938
62 changed files with 9947 additions and 0 deletions
@@ -0,0 +1,78 @@
+import Foundation
+
+/// 网络请求封装 - 对应 Android 版 OkGo
+class NetworkManager {
+    static let shared = NetworkManager()
+    
+    private let session: URLSession
+    private let decoder = JSONDecoder()
+    
+    private init() {
+        let config = URLSessionConfiguration.default
+        config.timeoutIntervalForRequest = 15
+        config.timeoutIntervalForResource = 30
+        config.httpMaximumConnectionsPerHost = 5
+        self.session = URLSession(configuration: config)
+    }
+    
+    /// GET 请求获取字符串
+    func getString(from urlString: String, headers: [String: String]? = nil) async throws -> String {
+        guard let url = URL(string: urlString.trimmingCharacters(in: .whitespacesAndNewlines)) else {
+            throw NetworkError.invalidURL(urlString)
+        }
+        
+        var request = URLRequest(url: url)
+        request.httpMethod = "GET"
+        headers?.forEach { request.setValue($1, forHTTPHeaderField: $0) }
+        
+        let (data, response) = try await session.data(for: request)
+        
+        guard let httpResponse = response as? HTTPURLResponse else {
+            throw NetworkError.invalidResponse
+        }
+        
+        guard (200...299).contains(httpResponse.statusCode) else {
+            throw NetworkError.httpError(httpResponse.statusCode)
+        }
+        
+        guard let str = String(data: data, encoding: .utf8) else {
+            throw NetworkError.decodingError("UTF-8 解码失败")
+        }
+        
+        return str
+    }
+    
+    /// GET 请求解码 JSON
+    func getJSON<T: Decodable>(from urlString: String, type: T.Type, headers: [String: String]? = nil) async throws -> T {
+        let str = try await getString(from: urlString, headers: headers)
+        guard let data = str.data(using: .utf8) else {
+            throw NetworkError.decodingError("字符串转 Data 失败")
+        }
+        return try decoder.decode(T.self, from: data)
+    }
+    
+    /// GET 请求获取原始 Data
+    func getData(from urlString: String) async throws -> Data {
+        guard let url = URL(string: urlString.trimmingCharacters(in: .whitespacesAndNewlines)) else {
+            throw NetworkError.invalidURL(urlString)
+        }
+        let (data, _) = try await session.data(from: url)
+        return data
+    }
+}
+
+enum NetworkError: LocalizedError {
+    case invalidURL(String)
+    case invalidResponse
+    case httpError(Int)
+    case decodingError(String)
+    
+    var errorDescription: String? {
+        switch self {
+        case .invalidURL(let url): return "无效的URL: \(url)"
+        case .invalidResponse: return "无效的响应"
+        case .httpError(let code): return "HTTP 错误: \(code)"
+        case .decodingError(let msg): return "解码错误: \(msg)"
+        }
+    }
+}