// This code is part of the Fungus library (http://fungusgames.com) maintained by Chris Gregan (http://twitter.com/gofungus).
// It is released for free under the MIT open source license (https://github.com/snozbot/fungus/blob/master/LICENSE)

using UnityEngine;

namespace Fungus
{
    /// <summary>
    /// Type of log message. Maps directly to Unity's log types.
    /// </summary>
    public enum DebugLogType
    {
        /// <summary> Informative log message. </summary>
        Info,
        /// <summary> Warning log message. </summary>
        Warning,
        /// <summary> Error log message. </summary>
        Error
    }

    /// <summary>
    /// Writes a log message to the debug console.
    /// </summary>
    [CommandInfo("Scripting", 
                 "Debug Log", 
                 "Writes a log message to the debug console.")]
    [AddComponentMenu("")]
    public class DebugLog : Command 
    {
        [Tooltip("Display type of debug log info")]
        [SerializeField] protected DebugLogType logType;

        [Tooltip("Text to write to the debug log. Supports variable substitution, e.g. {$Myvar}")]
        [SerializeField] protected StringDataMulti logMessage;

        #region Public members

        public override void OnEnter ()
        {
            var flowchart = GetFlowchart();
            string message = flowchart.SubstituteVariables(logMessage.Value);

            switch (logType)
            {
            case DebugLogType.Info:
                Debug.Log(message);
                break;
            case DebugLogType.Warning:
                Debug.LogWarning(message);
                break;
            case DebugLogType.Error:
                Debug.LogError(message);
                break;
            }

            Continue();
        }

        public override string GetSummary()
        {
            return logMessage.GetDescription();
        }

        public override Color GetButtonColor()
        {
            return new Color32(235, 191, 217, 255);
        }

        #endregion

        #region Editor caches
#if UNITY_EDITOR
        protected override void RefreshVariableCache()
        {
            base.RefreshVariableCache();

            var f = GetFlowchart();

            f.DetermineSubstituteVariables(logMessage.Value, referencedVariables);
        }
#endif
        #endregion Editor caches
    }
}