using AppUI.Config;
using AppUI.Localization;
using TMPro;
using UnityEngine;

namespace AppUI.Component.DeviceInfo
{
    /// <summary>
    /// 版本行等需要运行时参数（平台、版本号）的文案。
    /// 与同一 TMP 上的 <see cref="AppUITextAutoLanguage"/> 配合：Prefab 配 textKey，本脚本只填 <see cref="AppUITextAutoLanguage.textFormatArgs"/>。
    /// </summary>
    [ExecuteAlways]
    public class DeviceInfo : MonoBehaviour
    {
        const string VersionTextKey = "appui-login-version";

        [SerializeField]
        TMP_Text deviceInfo;

        AppUITextAutoLanguage _versionLocalized;

        void Awake()
        {
            ResolveReferences();
        }

        void OnEnable()
        {
            AppUILocalization.OnLanguageChanged += RefreshVersionText;
            RefreshVersionText(AppUILocalization.GetLanguage());
        }

        void Start()
        {
            RefreshVersionText(AppUILocalization.GetLanguage());
        }

        void OnDisable()
        {
            AppUILocalization.OnLanguageChanged -= RefreshVersionText;
        }

#if UNITY_EDITOR
        void OnValidate()
        {
            ResolveReferences();
            if (!Application.isPlaying)
                RefreshVersionText(AppUILocalization.GetLanguage());
        }
#endif

        void ResolveReferences()
        {
            if (deviceInfo == null)
                deviceInfo = GetComponentInChildren<TMP_Text>(true);

            if (deviceInfo != null)
                _versionLocalized = deviceInfo.GetComponent<AppUITextAutoLanguage>();
        }

        void RefreshVersionText(LanguageEnum _)
        {
            string platform = GlobalConfig.GetPlatformDisplayName();
            string version = Application.version;

#if UNITY_EDITOR
            if (!Application.isPlaying && string.IsNullOrEmpty(version))
                version = "1.0.0";
#endif

            if (_versionLocalized != null)
            {
                _versionLocalized.textFormatArgs = new object[] { platform, version };
                if (string.IsNullOrEmpty(_versionLocalized.GetTextKey()))
                    _versionLocalized.SetTextKey(VersionTextKey);
                else
                    _versionLocalized.ApplyToText();
                return;
            }

            if (deviceInfo == null)
                return;

            deviceInfo.text = string.Format(
                AppUILocalization.GetTextByKey(VersionTextKey),
                platform,
                version);
        }
    }
}