CopilotForXcode/Copilot for Xcode/OpenAIView.swift at f3bb9cc1577daced06df9849d92ead3e74de786a · codehobby2022/CopilotForXcode · GitHub

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import AppKit
import Client
import CopilotModel
import Preferences
import SwiftUI

final class OpenAIViewSettings: ObservableObject {
    static let availableLocalizedLocales = Locale.availableLocalizedLocales
    @AppStorage(\.openAIAPIKey) var openAIAPIKey: String
    @AppStorage(\.chatGPTModel) var chatGPTModel: String
    @AppStorage(\.chatGPTEndpoint) var chatGPTEndpoint: String
    @AppStorage(\.chatGPTLanguage) var chatGPTLanguage: String
    @AppStorage(\.chatGPTMaxToken) var chatGPTMaxToken: Int
    init() {}
}

struct OpenAIView: View {
    let apiKeyURL = URL(string: "https://platform.openai.com/account/api-keys")!
    let modelURL = URL(
        string: "https://platform.openai.com/docs/models/model-endpoint-compatibility"
    )!
    @Environment(\.openURL) var openURL
    @StateObject var settings = OpenAIViewSettings()

    var body: some View {
        Section {
            VStack(alignment: .leading, spacing: 8) {
                Text("OpenAI")
                    .font(.title)
                    .padding(.bottom, 12)

                Form {
                    HStack {
                        TextField(text: $settings.openAIAPIKey, prompt: Text("sk-*")) {
                            Text("OpenAI API Key")
                        }.textFieldStyle(.roundedBorder)
                        Button(action: {
                            openURL(apiKeyURL)
                        }) {
                            Image(systemName: "questionmark.circle.fill")
                        }.buttonStyle(.plain)
                    }

                    HStack {
                        Picker(selection: $settings.chatGPTModel) {
                            if !settings.chatGPTModel.isEmpty,
                               ChatGPTModel(rawValue: settings.chatGPTModel) == nil
                            {
                                Text(settings.chatGPTModel).tag(settings.chatGPTModel)
                            }
                            ForEach(ChatGPTModel.allCases, id: \.self) { model in
                                Text(model.rawValue).tag(model.rawValue)
                            }
                        } label: {
                            Text("ChatGPT Model")
                        }.pickerStyle(.menu)
                        Button(action: {
                            openURL(modelURL)
                        }) {
                            Image(systemName: "questionmark.circle.fill")
                        }.buttonStyle(.plain)
                    }
                    .onChange(of: settings.chatGPTModel) { newValue in
                        if let model = ChatGPTModel(rawValue: newValue) {
                            settings.chatGPTEndpoint = model.endpoint
                        }
                    }

                    TextField(
                        text: $settings.chatGPTEndpoint,
                        prompt: Text("https://api.openai.com/v1/chat/completions")
                    ) {
                        Text("ChatGPT Server")
                    }.textFieldStyle(.roundedBorder)

                    if #available(macOS 13.0, *) {
                        LabeledContent("Reply in Language") {
                            languagePicker
                        }
                    } else {
                        HStack {
                            Text("Reply in Language")
                            languagePicker
                        }
                    }

                    if let model = ChatGPTModel(rawValue: settings.chatGPTModel) {
                        let binding = Binding(
                            get: { String(settings.chatGPTMaxToken) },
                            set: {
                                if let selectionMaxToken = Int($0) {
                                    settings.chatGPTMaxToken = model
                                        .maxToken < selectionMaxToken ? model
                                        .maxToken : selectionMaxToken
                                } else {
                                    settings.chatGPTMaxToken = 0
                                }
                            }
                        )
                        HStack {
                            Stepper(
                                value: $settings.chatGPTMaxToken,
                                in: 0...model.maxToken,
                                step: 1
                            ) {
                                Text("Max Token")
                            }
                            TextField(text: binding) {
                                EmptyView()
                            }
                            .labelsHidden()
                            .textFieldStyle(.roundedBorder)
                        }
                    }
                }
            }
        }
    }

    var languagePicker: some View {
        Menu {
            if !settings.chatGPTLanguage.isEmpty,
               !OpenAIViewSettings.availableLocalizedLocales
                .contains(settings.chatGPTLanguage)
            {
                Button(
                    settings.chatGPTLanguage,
                    action: { self.settings.chatGPTLanguage = settings.chatGPTLanguage }
                )
            }
            Button(
                "Auto-detected by ChatGPT",
                action: { self.settings.chatGPTLanguage = "" }
            )
            ForEach(
                OpenAIViewSettings.availableLocalizedLocales,
                id: \.self
            ) { localizedLocales in
                Button(
                    localizedLocales,
                    action: { self.settings.chatGPTLanguage = localizedLocales }
                )
            }
        } label: {
            Text(
                settings.chatGPTLanguage.isEmpty
                ? "Auto-detected by ChatGPT"
                : settings.chatGPTLanguage
            )
        }
    }
}

struct OpenAIView_Previews: PreviewProvider {
    static var previews: some View {
        VStack(alignment: .leading, spacing: 8) {
            OpenAIView()
        }
        .frame(height: 800)
        .padding(.all, 8)
        .background(Color.black)
    }
}