// Allow and Deny on the Smart Stack widget. WidgetKit runs the intent without opening the app, then
// reloads the widget's timeline. A request someone already answered (409) counts as done.
//
// The app target compiles this file too, because WaitingView builds the buttons.

import AppIntents

struct RespondIntent: AppIntent {
    static let title: LocalizedStringResource = "Answer an approval"
    static let isDiscoverable = false

    @Parameter(title: "Host") var hostId: String
    @Parameter(title: "Thread") var threadId: String
    @Parameter(title: "Request") var requestId: String
    @Parameter(title: "Decision") var decision: String

    init() {}

    init(_ approval: WaitingEntry.Approval, decision: ApprovalDecision) {
        hostId = approval.hostId
        threadId = approval.threadId
        requestId = approval.requestId
        self.decision = decision.rawValue
    }

    func perform() async throws -> some IntentResult {
        guard let api = SharedState.api else { return .result() }
        do {
            try await api.respond(
                hostId: hostId, threadId: threadId,
                request: .decision(requestId: requestId, decision: ApprovalDecision(rawValue: decision)))
        } catch let error as GatewayError where error.isStale {
            // Answered already, on the watch or elsewhere. The reload shows what is next.
        }
        return .result()
    }
}