using Cryville.Common;
using System;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

namespace Cryville.Crtr.Browsing.UI {
	public class DetailPanel : MonoBehaviour {
		[SerializeField]
		Sprite m_coverPlaceholder;
		[SerializeField]
		GameObject m_placeholder;
		[SerializeField]
		GameObject m_content;
		[SerializeField]
		Image m_cover;
		[SerializeField]
		TMP_Text m_title;
		[SerializeField]
		TMP_Text m_desc;

		ChartDetail _data;

		void OnDestroy() {
			DestroyDynamicResources();
		}

		public void Load(ChartDetail data) {
			m_placeholder.SetActive(false);
			m_content.SetActive(true);
			DestroyDynamicResources();
			_data = data;
			m_cover.sprite = m_coverPlaceholder;
			if (data.Cover != null) data.Cover.Destination = DisplayCover;
			var meta = data.Meta;
			if (meta != null) {
				m_title.text = string.Format("{0}\n{1}", meta.song.name, meta.name);
				m_desc.text = string.Format(
					"Music artist: {0}\nCharter: {1}\nLength: {2}\nNote Count: {3}",
					meta.song.author, meta.author,
					TimeSpan.FromSeconds(meta.length).ToString(3), meta.note_count
				);
			}
			else {
				m_title.text = "<color=#ff0000>Invalid resource</color>";
				m_desc.text = string.Empty;
			}
		}
		void DisplayCover(bool succeeded, Texture2D tex) {
			if (succeeded) {
				m_cover.sprite = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), Vector2.zero, 160, 0, SpriteMeshType.FullRect);
			}
		}
		public void Clear() {
			m_placeholder.SetActive(true);
			m_content.SetActive(false);
			DestroyDynamicResources();
		}

		void DestroyDynamicResources() {
			if (_data.Cover != null) _data.Cover.Cancel();
			if (m_cover.sprite != null && m_cover.sprite != m_coverPlaceholder) {
				Destroy(m_cover.sprite.texture);
				Destroy(m_cover.sprite);
			}
		}
	}
}