feat: Sdk 封装

Sources/DuooomiBleSDK/Services/AniConverter.swift

@@ -0,0 +1,78 @@
+import Foundation
+
+struct AniConverterError: LocalizedError {
+    let message: String
+    var errorDescription: String? { message }
+}
+
+/// 将源视频/图片转换为设备可用的 ANI 文件。
+final class AniConverter {
+    private let config: DuooomiBleConfig
+
+    private var endpoint: URL {
+        config.apiHost.appendingPathComponent("api/auth/loomart/file/convert-to-ani")
+    }
+
+    private let session: URLSession = {
+        let cfg = URLSessionConfiguration.default
+        cfg.timeoutIntervalForRequest = 120
+        cfg.timeoutIntervalForResource = 180
+        cfg.waitsForConnectivity = true
+        return URLSession(configuration: cfg)
+    }()
+
+    init(config: DuooomiBleConfig) {
+        self.config = config
+    }
+
+    /// 调用 ANI 转换接口，返回 ani 文件的 CDN URL。
+    func convert(fileUrl: String) async throws -> String {
+        do {
+            return try await performConvert(fileUrl: fileUrl)
+        } catch let error as NSError where error.code == NSURLErrorNetworkConnectionLost {
+            return try await performConvert(fileUrl: fileUrl)
+        }
+    }
+
+    private func performConvert(fileUrl: String) async throws -> String {
+        var request = URLRequest(url: endpoint)
+        request.httpMethod = "POST"
+        request.setValue("application/json", forHTTPHeaderField: "content-type")
+        request.setValue(config.apiKey, forHTTPHeaderField: "x-api-key")
+        request.timeoutInterval = 120
+
+        let body: [String: Any] = [
+            "videoUrl": fileUrl,
+            "width": 360,
+            "height": 360,
+            "fps": "24",
+        ]
+        request.httpBody = try JSONSerialization.data(withJSONObject: body)
+
+        let (data, response) = try await session.data(for: request)
+
+        if let http = response as? HTTPURLResponse, !(200..<300).contains(http.statusCode) {
+            throw AniConverterError(message: "HTTP \(http.statusCode)")
+        }
+
+        guard let json = try JSONSerialization.jsonObject(with: data) as? [String: Any] else {
+            throw AniConverterError(message: "Invalid JSON response")
+        }
+
+        guard (json["success"] as? Bool) == true,
+              let outer = json["data"] as? [String: Any] else {
+            throw AniConverterError(message: "ANI API reported failure")
+        }
+
+        if (outer["status"] as? Bool) != true {
+            let msg = (outer["msg"] as? String) ?? "ANI conversion failed"
+            throw AniConverterError(message: msg)
+        }
+
+        guard let aniUrl = outer["data"] as? String, !aniUrl.isEmpty else {
+            throw AniConverterError(message: "Missing ani url in response")
+        }
+
+        return aniUrl
+    }
+}