// WL796_Shot.cs — Play 중 실제 게임 렌더(Screen 해상도 그대로)를 PNG 로 저장한다.
//   unity command run_script --file AgentScripts/WL796_Shot.cs --entry WL796_Shot.Grab --args '["wl796_A_1080x1920"]'
//   unity command run_script --file AgentScripts/WL796_Shot.cs --entry WL796_Shot.Result
// capture_game_view --source screen 은 에디터 창 비율로 나와 세로 화면 검증에 쓸 수 없어 직접 캡처한다.
using System.Collections;
using System.IO;
using UnityEngine;

public static class WL796_Shot
{
    const string OutDir = "Screenshots_WL/hud2";
    static string s_result = "(not run)";

    class Host : MonoBehaviour
    {
        public string fileName;
        public IEnumerator Co()
        {
            yield return new WaitForEndOfFrame();
            var tex = ScreenCapture.CaptureScreenshotAsTexture();
            Directory.CreateDirectory(OutDir);
            var path = Path.Combine(OutDir, fileName + ".png");
            File.WriteAllBytes(path, tex.EncodeToPNG());
            s_result = "saved " + path + " " + tex.width + "x" + tex.height;
            Object.Destroy(tex);
            Object.Destroy(gameObject);
        }
    }

    public static object Grab(string fileName)
    {
        if (!Application.isPlaying) return "not playing";
        s_result = "(pending)";
        var host = new GameObject("__wl796shot").AddComponent<Host>();
        host.fileName = fileName;
        host.StartCoroutine(host.Co());
        return "capturing -> " + fileName + ".png (Result 로 확인)";
    }

    public static object Result() { return s_result; }
}