import Foundation
import OrgSocialKit

enum UploaderFactory {
    static func makeUploader() -> (any FeedUploader)? {
        let d = UserDefaults.standard
        let method = UploadMethod(rawValue: d.string(forKey: "uploadMethod") ?? "") ?? .vfile
        switch method {
        case .vfile:
            guard let raw = d.string(forKey: "vfileURL"), let url = URL(string: raw) else { return nil }
            return VFileUploader(tokenURL: url)
        case .github:
            let token = d.string(forKey: "githubToken") ?? ""
            let owner = d.string(forKey: "githubOwner") ?? ""
            let repo  = d.string(forKey: "githubRepo") ?? ""
            guard !token.isEmpty, !owner.isEmpty, !repo.isEmpty else { return nil }
            return GitHubUploader(token: token, owner: owner, repo: repo,
                                  path: d.string(forKey: "githubPath") ?? "social.org",
                                  branch: d.string(forKey: "githubBranch") ?? "main")
        case .codeberg:
            let token = d.string(forKey: "codebergToken") ?? ""
            let owner = d.string(forKey: "codebergOwner") ?? ""
            let repo  = d.string(forKey: "codebergRepo") ?? ""
            guard !token.isEmpty, !owner.isEmpty, !repo.isEmpty else { return nil }
            return CodebergUploader(token: token, owner: owner, repo: repo,
                                    path: d.string(forKey: "codebergPath") ?? "social.org",
                                    branch: d.string(forKey: "codebergBranch") ?? "main",
                                    instance: d.string(forKey: "codebergInstance") ?? "https://codeberg.org")
        case .webdav:
            guard let raw = d.string(forKey: "webdavURL"), let url = URL(string: raw) else { return nil }
            return WebDAVUploader(url: url, username: d.string(forKey: "webdavUsername"),
                                  password: d.string(forKey: "webdavPassword"))
        }
    }
}