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