import Foundation
import XuqmFileSDK

public struct XWebViewConfig: Sendable {
    public var url: String
    public var title: String
    public var hideToolbar: Bool
    public var hideStatusBar: Bool
    public var userAgent: String?
    public var injectedJavaScript: String?
    /// Native message handler name registered in WKUserContentController.
    /// H5 side calls `window.webkit.messageHandlers.<jsBridgeName>.postMessage(json)`.
    public var jsBridgeName: String
    /// Where intercepted WebView downloads are saved.
    public var downloadDestination: FileDownloadDestination
    /// Custom message callback — receives raw JSON string from H5 via jsBridgeName bridge.
    public var onMessage: (@Sendable (String) -> Void)?
    /// Called when the WebView container should close (xuqm.closeWebView JSBridge command).
    public var onClose: (@Sendable () -> Void)?
    /// Called on page load error. Receives a human-readable error description.
    public var onPageError: (@Sendable (String) -> Void)?
    /// Called as the page loads. Progress is 0–100.
    public var onProgressChanged: (@Sendable (Int) -> Void)?
    /// Called when the navigation stack changes. (canGoBack, canGoForward)
    public var onNavigationChanged: (@Sendable (Bool, Bool) -> Void)?

    public init(
        url: String = "",
        title: String = "",
        hideToolbar: Bool = false,
        hideStatusBar: Bool = false,
        userAgent: String? = nil,
        injectedJavaScript: String? = nil,
        jsBridgeName: String = "SZYX_APP",
        downloadDestination: FileDownloadDestination = .sandbox,
        onMessage: (@Sendable (String) -> Void)? = nil,
        onClose: (@Sendable () -> Void)? = nil,
        onPageError: (@Sendable (String) -> Void)? = nil,
        onProgressChanged: (@Sendable (Int) -> Void)? = nil,
        onNavigationChanged: (@Sendable (Bool, Bool) -> Void)? = nil
    ) {
        self.url = url
        self.title = title
        self.hideToolbar = hideToolbar
        self.hideStatusBar = hideStatusBar
        self.userAgent = userAgent
        self.injectedJavaScript = injectedJavaScript
        self.jsBridgeName = jsBridgeName
        self.downloadDestination = downloadDestination
        self.onMessage = onMessage
        self.onClose = onClose
        self.onPageError = onPageError
        self.onProgressChanged = onProgressChanged
        self.onNavigationChanged = onNavigationChanged
    }
}

public protocol XWebViewController: AnyObject {
    func canGoBack() -> Bool
    func canGoForward() -> Bool
    func currentUrl() -> String?
    func goBack()
    func goForward()
    func reload()
    func load(url: String)
    func postMessageToWeb(js: String)
}