#pragma once
// Client application: window, renderer, screens (title, join, character
// creator, play) and the glue between NetClient, World and the HD-2D UI.

#include "Common.h"
#include "NetClient.h"
#include "World.h"

#include "hd2d/Camera.h"
#include "hd2d/DebugUI.h"
#include "hd2d/Renderer.h"
#include "hd2d/Screenshot.h"
#include "hd2d/UI.h"
#include "hd2d/Window.h"

#include <map>
#include <memory>
#include <string>
#include <vector>

namespace bs {

struct Options {
    std::string screenshot;   // capture to this PNG, then exit (hidden window)
    int frames = 120;         // frames before the capture
    int width = 1600, height = 900;
    bool show = false;        // visible window even when capturing
    std::string connect;      // host[:port] to join right away
    bool host = false;        // start a local server and join it
    uint16_t port = kDefaultPort;
    bool autoCreate = false;  // skip the creator with a default look
    bool autoDialogue = false;  // captures: advance dialogue automatically
    std::string screen;       // "title" | "creator" capture start screen
    std::string profile;      // identity file suffix (several clients on one machine)
    std::string name;         // character name for --auto-create
    glm::vec2 move{0.0f};     // held movement for captures
    bool run = false;
    float yaw = 0.0f, dist = 0.0f;
    bool hasYaw = false;
    float hour = -1.0f;       // title backdrop hour
    std::string weather;      // title backdrop weather
    std::vector<std::string> keys;  // scripted key presses: "<frame>:<key>" (space, e, f, tab)
    std::string look;         // --look body,skin,hair,hat,top,bottom,shoes (creator capture)
};

class App {
public:
    explicit App(Options opt) : opt_(std::move(opt)) {}
    int run();

private:
    enum class Screen { Title, Join, Connecting, Creator, Play };
    struct DialogueScript {
        std::vector<std::pair<std::string, std::string>> lines;  // speaker, text
    };

    bool init();
    void shutdown();
    void frame(float dt);
    void handleNet();
    void updateCamera(float dt);

    // screens
    void drawTitle(ImVec2 vp);
    void drawJoin(ImVec2 vp);
    void drawConnecting(ImVec2 vp);
    void drawCreator(ImVec2 vp);
    void drawPlay(ImVec2 vp, float dt);
    void drawHud(ImVec2 vp);
    void drawLabels(ImVec2 vp);
    void drawCollection(ImVec2 vp);
    void drawChat(ImVec2 vp);
    void drawPause(ImVec2 vp);

    void playInput(float dt);
    void startDialogue(const std::string& script);
    void beginConnect(const std::string& host, uint16_t port);
    bool startLocalServer();
    void stopLocalServer();
    void returnToTitle(const std::string& message = {});
    UiTexture* creatureIcon(uint16_t species);
    void refreshPreview();
    bool pressed(int key) const;      // game key (ignored while ImGui has the keyboard)
    bool scripted(const char* key) const;

    Options opt_;
    hd2d::Window window_;
    hd2d::Renderer renderer_;
    hd2d::DebugUI debugUi_;
    hd2d::OffscreenTarget offscreen_;
    bool capture_ = false;
    hd2d::Camera cam_;
    World world_;
    NetClient net_;
    Screen screen_ = Screen::Title;
    float time_ = 0.0f;
    int frame_ = 0;
    bool showDebug_ = false;
    float uiScale_ = 1.0f;

    // identity
    std::string token_, lastHost_ = "127.0.0.1", savedName_;
    uint16_t lastPort_ = kDefaultPort;
    void loadIdentity();
    void saveIdentity();

    // title / join
    int titleSel_ = 0;
    std::string message_;
    net::Scanner scanner_;
    std::vector<net::ServerInfo> found_;
    float scanTimer_ = 0.0f;
    char addressBuf_[128] = "127.0.0.1";
    int serverPid_ = -1;
    float connectTimer_ = 0.0f;

    // creator
    Appearance look_;
    char nameBuf_[24] = "";
    UiTexture preview_;
    int previewDir_ = 0;
    bool creating_ = false;

    // play
    hd2d::ui::DialogueBox dialogue_;
    std::string dialogueScript_;
    hd2d::ui::Toasts toasts_;
    std::map<std::string, DialogueScript> scripts_;
    UiTexture henryPortrait_;
    std::map<uint16_t, std::unique_ptr<UiTexture>> icons_;
    bool collectionOpen_ = false, pauseOpen_ = false, chatOpen_ = false;
    int collectionSel_ = 0, pauseSel_ = 0;
    char chatBuf_[128] = "";
    bool chatFocus_ = false;
    float camYawTarget_ = 0.0f;
    glm::vec2 heldMove_{0.0f};
};

}  // namespace bs