#pragma once

#include <memory>
#include <string>

#include "app.h"
#include "event_bus.h"
#include "input_history.h"
#include "line_editor.h"
#include "list_model.h"
#include "services/irc_service.h"
#include "ui/theme.h"

namespace roro {

// IRC: one Buffer at a time with an input line; /settings opens the server form. Opening the App
// starts the IRC Service, which keeps running after the App is left.
class IrcApp : public App {
   public:
    IrcApp(IrcService& irc, ClockService& clock, EventBus& bus) : irc_(irc), clock_(clock), bus_(bus) {}
    void onEnter() override;
    void onExit() override;
    bool onKey(const KeyEvent& e) override;
    void update(uint32_t nowMs) override;
    bool textEntryActive() const override { return page_ == Page::Chat || editing_; }
    void draw(Canvas& c) override;

   private:
    enum class Page { Chat, Settings };
    enum Field { kHost, kPort, kTls, kSelfSigned, kNick, kSaslUser, kSaslPass, kNickserv, kAutojoin, kSave, kFields };

    bool onChatKey(const KeyEvent& e);
    bool onSettingsKey(const KeyEvent& e);
    void view(int buffer);
    void drawChat(Canvas& c);
    void drawSettings(Canvas& c);
    std::string fieldLabel(int f) const;
    std::string fieldValue(int f) const;
    void startEditing(int f);
    void finishEditing();
    void warn(const std::string& text);

    IrcService& irc_;
    ClockService& clock_;
    EventBus& bus_;
    Page page_ = Page::Chat;
    int current_ = 0;
    int scroll_ = 0;  // wrapped lines scrolled back from the bottom
    uint32_t seenRevision_ = 0;
    IrcService::Status seenStatus_ = IrcService::Status::Stopped;
    LineEditor input_{400};
    InputHistory history_{30};
    ListModel fields_{theme::kContent.h / theme::kLineHeight};
    bool editing_ = false;
    LineEditor fieldEditor_{63};
    std::unique_ptr<IrcConfig> draft_;  // the settings being edited, applied on Save
};

}  // namespace roro