// tui_shot: headless frames of the demo scene from the C++ port, to diff against python.
//   tui_shot [rows cols]            plain text, same as tai.py --demo-shot
//   tui_shot frame [rows cols]      the raw bytes of the first frame (TuiApp.frame_bytes)
//   tui_shot cells [rows cols]      one line per cell: y x codepoint sgr (compose, no diff)
#include "TuiDemo.h"
#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <string>
using namespace detz::tui;

int main(int argc, char** argv) {
    std::string mode = "text";
    int arg = 1;
    if (argc > 1 && (std::string(argv[1]) == "frame" || std::string(argv[1]) == "cells")) {
        mode = argv[1];
        arg = 2;
    }
    int rows = argc > arg ? std::atoi(argv[arg]) : 30;
    int cols = argc > arg + 1 ? std::atoi(argv[arg + 1]) : 100;
    if (mode == "text") return TuiDemo::demo_shot(std::cout, rows, cols);
    TuiApp app;
    app.rows = rows;
    app.cols = cols;
    auto built = TuiDemo::build(app, false);
    app.mount(built.first);
    app.close_panel(built.first->find("welcome"));
    built.second->shell->screen.feed("$ echo hello\r\nhello\r\n$ ");
    built.second->stream->screen.feed("stream tick 1\r\nstream tick 2\r\nstream tick 3\r\n");
    if (mode == "frame") {
        std::string bytes = app.frame_bytes();
        std::fwrite(bytes.data(), 1, bytes.size(), stdout);
        return 0;
    }
    app.render_text();   // forces layout
    TuiCellRows frame = app.compositor.compose(app.root.get(), rows, cols);
    for (size_t y = 0; y < frame.size(); y++) {
        for (size_t x = 0; x < frame[y].size(); x++) {
            std::printf("%zu %zu %u %s\n", y, x, static_cast<unsigned>(frame[y][x].ch),
                        app.compositor.sgr(frame[y][x].key).substr(1).c_str());
        }
    }
    return 0;
}