import Foundation

public protocol UserDefaultPreferenceKey {
    associatedtype Value
    var defaultValue: Value { get }
    var key: String { get }
}

public struct PreferenceKey<T>: UserDefaultPreferenceKey {
    public let defaultValue: T
    public let key: String
}

public struct FeatureFlag: UserDefaultPreferenceKey {
    public let defaultValue: Bool
    public let key: String
}

public struct UserDefaultPreferenceKeys {
    public init() {}

    // MARK: Quit XPC Service On Xcode And App Quit

    public let quitXPCServiceOnXcodeAndAppQuit = PreferenceKey(
        defaultValue: true,
        key: "QuitXPCServiceOnXcodeAndAppQuit"
    )

    // MARK: Automatically Check For Update

    public let automaticallyCheckForUpdate = PreferenceKey(
        defaultValue: false,
        key: "AutomaticallyCheckForUpdate"
    )

    // MARK: Suggestion Widget Position Mode

    public let suggestionWidgetPositionMode = PreferenceKey(
        defaultValue: SuggestionWidgetPositionMode.fixedToBottom,
        key: "SuggestionWidgetPositionMode"
    )

    // MARK: Widget Color Scheme

    public let widgetColorScheme = PreferenceKey(
        defaultValue: WidgetColorScheme.dark,
        key: "WidgetColorScheme"
    )

    // MARK: Force Order Widget to Front

    public let forceOrderWidgetToFront = PreferenceKey(
        defaultValue: true,
        key: "ForceOrderWidgetToFront"
    )

    // MARK: Prefer Widget to Stay Inside Editor When Width Greater Than

    public let preferWidgetToStayInsideEditorWhenWidthGreaterThan = PreferenceKey(
        defaultValue: 1400 as Double,
        key: "PreferWidgetToStayInsideEditorWhenWidthGreaterThan"
    )
}

// MARK: - OpenAI Account Settings

public extension UserDefaultPreferenceKeys {
    var openAIAPIKey: PreferenceKey<String> {
        .init(defaultValue: "", key: "OpenAIAPIKey")
    }

    @available(*, deprecated, message: "Use `openAIBaseURL` instead.")
    var chatGPTEndpoint: PreferenceKey<String> {
        .init(defaultValue: "", key: "ChatGPTEndpoint")
    }

    var openAIBaseURL: PreferenceKey<String> {
        .init(defaultValue: "", key: "OpenAIBaseURL")
    }

    var chatGPTModel: PreferenceKey<String> {
        .init(defaultValue: Preferences.ChatGPTModel.gpt35Turbo.rawValue, key: "ChatGPTModel")
    }

    var chatGPTMaxToken: PreferenceKey<Int> {
        .init(defaultValue: 4000, key: "ChatGPTMaxToken")
    }

    var chatGPTLanguage: PreferenceKey<String> {
        .init(defaultValue: "", key: "ChatGPTLanguage")
    }

    var chatGPTMaxMessageCount: PreferenceKey<Int> {
        .init(defaultValue: 5, key: "ChatGPTMaxMessageCount")
    }

    var chatGPTTemperature: PreferenceKey<Double> {
        .init(defaultValue: 0.7, key: "ChatGPTTemperature")
    }
}

// MARK: - Azure OpenAI Settings

public extension UserDefaultPreferenceKeys {
    var azureOpenAIAPIKey: PreferenceKey<String> {
        .init(defaultValue: "", key: "AzureOpenAIAPIKey")
    }

    var azureOpenAIBaseURL: PreferenceKey<String> {
        .init(defaultValue: "", key: "AzureOpenAIBaseURL")
    }

    var azureChatGPTDeployment: PreferenceKey<String> {
        .init(defaultValue: "", key: "AzureChatGPTDeployment")
    }
}

// MARK: - GitHub Copilot Settings

public extension UserDefaultPreferenceKeys {
    var gitHubCopilotVerboseLog: PreferenceKey<Bool> {
        .init(defaultValue: false, key: "GitHubCopilotVerboseLog")
    }

    var gitHubCopilotProxyHost: PreferenceKey<String> {
        .init(defaultValue: "", key: "GitHubCopilotProxyHost")
    }
    
    var gitHubCopilotProxyPort: PreferenceKey<String> {
        .init(defaultValue: "", key: "GitHubCopilotProxyPort")
    }

    var gitHubCopilotUseStrictSSL: PreferenceKey<Bool> {
        .init(defaultValue: true, key: "GitHubCopilotUseStrictSSL")
    }

    var gitHubCopilotProxyUsername: PreferenceKey<String> {
        .init(defaultValue: "", key: "GitHubCopilotProxyUsername")
    }

    var gitHubCopilotProxyPassword: PreferenceKey<String> {
        .init(defaultValue: "", key: "GitHubCopilotProxyPassword")
    }

    var nodePath: PreferenceKey<String> {
        .init(defaultValue: "", key: "NodePath")
    }

    var runNodeWith: PreferenceKey<NodeRunner> {
        .init(defaultValue: .env, key: "RunNodeWith")
    }
}

// MARK: - Codeium Settings

public extension UserDefaultPreferenceKeys {
    var codeiumVerboseLog: PreferenceKey<Bool> {
        .init(defaultValue: false, key: "CodeiumVerboseLog")
    }
}

// MARK: - Prompt to Code

public extension UserDefaultPreferenceKeys {
    var promptToCodeFeatureProvider: PreferenceKey<PromptToCodeFeatureProvider> {
        .init(defaultValue: .openAI, key: "PromptToCodeFeatureProvider")
    }

    var promptToCodeGenerateDescription: PreferenceKey<Bool> {
        .init(defaultValue: true, key: "PromptToCodeGenerateDescription")
    }

    var promptToCodeGenerateDescriptionInUserPreferredLanguage: PreferenceKey<Bool> {
        .init(defaultValue: true, key: "PromptToCodeGenerateDescriptionInUserPreferredLanguage")
    }
}

// MARK: - Suggestion

public extension UserDefaultPreferenceKeys {
    var suggestionFeatureProvider: PreferenceKey<SuggestionFeatureProvider> {
        .init(defaultValue: .gitHubCopilot, key: "SuggestionFeatureProvider")
    }

    var realtimeSuggestionToggle: PreferenceKey<Bool> {
        .init(defaultValue: true, key: "RealtimeSuggestionToggle")
    }

    var suggestionCodeFontSize: PreferenceKey<Double> {
        .init(defaultValue: 13, key: "SuggestionCodeFontSize")
    }

    var disableSuggestionFeatureGlobally: PreferenceKey<Bool> {
        .init(defaultValue: false, key: "DisableSuggestionFeatureGlobally")
    }

    var suggestionFeatureEnabledProjectList: PreferenceKey<[String]> {
        .init(defaultValue: [], key: "SuggestionFeatureEnabledProjectList")
    }

    var suggestionFeatureDisabledLanguageList: PreferenceKey<[String]> {
        .init(defaultValue: [], key: "SuggestionFeatureDisabledLanguageList")
    }

    var hideCommonPrecedingSpacesInSuggestion: PreferenceKey<Bool> {
        .init(defaultValue: true, key: "HideCommonPrecedingSpacesInSuggestion")
    }

    var suggestionPresentationMode: PreferenceKey<PresentationMode> {
        .init(defaultValue: .floatingWidget, key: "SuggestionPresentationMode")
    }

    var realtimeSuggestionDebounce: PreferenceKey<Double> {
        .init(defaultValue: 0, key: "RealtimeSuggestionDebounce")
    }
}

// MARK: - Chat

public extension UserDefaultPreferenceKeys {
    var chatFeatureProvider: PreferenceKey<ChatFeatureProvider> {
        .init(defaultValue: .openAI, key: "ChatFeatureProvider")
    }

    var chatFontSize: PreferenceKey<Double> {
        .init(defaultValue: 12, key: "ChatFontSize")
    }

    var chatCodeFontSize: PreferenceKey<Double> {
        .init(defaultValue: 12, key: "ChatCodeFontSize")
    }

    var useGlobalChat: PreferenceKey<Bool> {
        .init(defaultValue: true, key: "UseGlobalChat")
    }

    var embedFileContentInChatContextIfNoSelection: PreferenceKey<Bool> {
        .init(defaultValue: false, key: "EmbedFileContentInChatContextIfNoSelection")
    }

    var maxEmbeddableFileInChatContextLineCount: PreferenceKey<Int> {
        .init(defaultValue: 100, key: "MaxEmbeddableFileInChatContextLineCount")
    }

    var useSelectionScopeByDefaultInChatContext: PreferenceKey<Bool> {
        .init(defaultValue: true, key: "UseSelectionScopeByDefaultInChatContext")
    }

    var defaultChatSystemPrompt: PreferenceKey<String> {
        .init(
            defaultValue: """
            You are an AI programming assistant.
            Your reply should be concise, clear, informative and logical.
            You MUST reply in the format of markdown.
            You MUST embed every code you provide in a markdown code block.
            You MUST add the programming language name at the start of the markdown code block.
            If you are asked to help perform a task, you MUST think step-by-step, then describe each step concisely.
            If you are asked to explain code, you MUST explain it step-by-step in a ordered list.
            Make your answer short and structured.
            """,
            key: "DefaultChatSystemPrompt"
        )
    }

    var chatSearchPluginMaxIterations: PreferenceKey<Int> {
        .init(defaultValue: 3, key: "ChatSearchPluginMaxIterations")
    }
}

// MARK: - Bing Search

public extension UserDefaultPreferenceKeys {
    var bingSearchSubscriptionKey: PreferenceKey<String> {
        .init(defaultValue: "", key: "BingSearchSubscriptionKey")
    }

    var bingSearchEndpoint: PreferenceKey<String> {
        .init(
            defaultValue: "https://api.bing.microsoft.com/v7.0/search/",
            key: "BingSearchEndpoint"
        )
    }
}

// MARK: - Custom Commands

public extension UserDefaultPreferenceKeys {
    var customCommands: PreferenceKey<[CustomCommand]> {
        .init(defaultValue: [
            .init(
                commandId: "BuiltInCustomCommandExplainSelection",
                name: "Explain Selection",
                feature: .chatWithSelection(
                    extraSystemPrompt: "",
                    prompt: "Explain the selected code concisely, step-by-step.",
                    useExtraSystemPrompt: true
                )
            ),
            .init(
                commandId: "BuiltInCustomCommandAddDocumentationToSelection",
                name: "Add Documentation to Selection",
                feature: .promptToCode(
                    extraSystemPrompt: "",
                    prompt: "Add documentation on top of the code. Use triple slash if the language supports it.",
                    continuousMode: false,
                    generateDescription: true
                )
            ),
            .init(
                commandId: "BuiltInCustomCommandSendCodeToChat",
                name: "Send Selected Code to Chat",
                feature: .chatWithSelection(
                    extraSystemPrompt: "",
                    prompt: """
                    ```{{active_editor_language}}
                    {{selected_code}}
                    ```
                    """,
                    useExtraSystemPrompt: true
                )
            ),
        ], key: "CustomCommands")
    }
}

// MARK: - Feature Flags

public extension UserDefaultPreferenceKeys {
    var disableLazyVStack: FeatureFlag {
        .init(defaultValue: false, key: "FeatureFlag-DisableLazyVStack")
    }

    var preCacheOnFileOpen: FeatureFlag {
        .init(defaultValue: true, key: "FeatureFlag-PreCacheOnFileOpen")
    }

    var runNodeWithInteractiveLoggedInShell: FeatureFlag {
        .init(defaultValue: true, key: "FeatureFlag-RunNodeWithInteractiveLoggedInShell")
    }

    var useCustomScrollViewWorkaround: FeatureFlag {
        .init(defaultValue: true, key: "FeatureFlag-UseCustomScrollViewWorkaround")
    }

    var triggerActionWithAccessibilityAPI: FeatureFlag {
        .init(defaultValue: true, key: "FeatureFlag-TriggerActionWithAccessibilityAPI")
    }
    
    var alwaysAcceptSuggestionWithAccessibilityAPI: FeatureFlag {
        .init(defaultValue: false, key: "FeatureFlag-AlwaysAcceptSuggestionWithAccessibilityAPI")
    }

    var animationACrashSuggestion: FeatureFlag {
        .init(defaultValue: true, key: "FeatureFlag-AnimationACrashSuggestion")
    }

    var animationBCrashSuggestion: FeatureFlag {
        .init(defaultValue: true, key: "FeatureFlag-AnimationBCrashSuggestion")
    }

    var animationCCrashSuggestion: FeatureFlag {
        .init(defaultValue: true, key: "FeatureFlag-AnimationCCrashSuggestion")
    }
}