using System;
using System.Collections.Generic;
using UnityEngine;

/// <summary>
/// A ScriptableObject for storing and managing various sets of scene blocks.
/// </summary>
/// <remarks>
/// This class is responsible for organizing and initializing different sets of scene blocks,
/// which include levels, blocks, and their associated properties.
/// </remarks>
[CreateAssetMenu(menuName = "All Scene Prefab Set")]
public class SceneBlocksSet : ScriptableObject
{
    public LevelsSet[] levels = new LevelsSet[3];
    public Targets[] targets = new Targets[3];

    private GameObject hudObj;
    private MessageBoxController messageBoxController;
    private bool isHudEnabled = false;

    /// <summary>
    /// Initialize the scene block set.
    /// </summary>
    /// <param name="hudObj">The HUD object used to access the message box controller.</param>
    public void InitializeSceneBlocksSet(GameObject hudObj = null)
    {
        if (hudObj != null)
        {
            isHudEnabled = true;
            this.hudObj = hudObj;
            messageBoxController = this.hudObj.GetComponent<MessageBoxController>();
        }
        for (int i = 0; i < levels.Length; i++)
        {
            // initialize all level prefab set
            levels[i].InitializeLevelsSet();
        }
    }

    /// <summary>
    /// Gets all level prefab sets.
    /// </summary>
    /// <param name="targetType">The target type (optional).</param>
    /// <param name="index">The index (optional).</param>
    /// <returns>The level prefab sets.</returns>
    /// <remarks>
    /// If the target type (targetType) or index (index) is provided, it returns the corresponding level prefab set.
    /// If neither the target type (targetType) nor the index (index) is provided, an exception will be thrown, and an error message will be logged.
    /// </remarks>
    public LevelsSet GetAllLevlePrefabSet(Targets? targetType = null, int? index = null)
    {
        if (targetType == null && index == null)
        {
            PushSceneBlockMessages(new List<string> { "[ERROR]ScenePrefabSet.GetAllLevlePrefabSet:", " targetType or index not found!" },
                new List<string> { messageBoxController.errorColor });
            throw new ArgumentNullException("Both targetType and index cannot be null.");
        }
        int levelIndex = 0;
        switch (targetType, index)
        {
            case (Targets type, null):
                levelIndex = type.ToIndex();
                break;

            case (null, int i):
                levelIndex = i;
                break;

            case (Targets type, int i):
                levelIndex = type.ToIndex();
                break;

            default:
                PushSceneBlockMessages(new List<string> { "[ERROR]ScenePrefabSet.GetAllLevlePrefabSet:", " targetType or index not found!" },
                    new List<string> { messageBoxController.errorColor });
                break;
        }
        return levels[levelIndex];
    }

    /// <summary>
    /// Gets the prefab set for a single level.
    /// </summary>
    /// <param name="level">The level index.</param>
    /// <param name="targetType">The target type (optional).</param>
    /// <param name="index">The index (optional).</param>
    /// <returns>The prefab set for a single level.</returns>
    /// <remarks>
    /// If the target type (targetType) or index (index) is provided, it returns the prefab set for the corresponding level.
    /// If the level index is out of range, an exception will be thrown, and an error message will be logged.
    /// </remarks>
    public BlocksSet GetSingleLevelPrefabSet(int level, Targets? targetType = null, int? index = null)
    {
        if (level >= GetAllLevlePrefabSet(targetType, index).singleLevelSet.Length)
        {
            PushSceneBlockMessages(new List<string> { "[ERROR]ScenePrefabSet.GetSingleLevelPrefabSet:", " level out of range!", "targetType = ", targetType.ToString(), "level = ", level.ToString() },
                new List<string> { messageBoxController.errorColor });
            Debug.LogError("ScenePrefabSet.GetSingleLevelPrefabSet:level out of range!");
            return null;
        }
        return GetAllLevlePrefabSet(targetType, index).singleLevelSet[level];
    }

    /// <summary>
    /// Gets a specific prefab for a given level, block type, target type, and index.
    /// </summary>
    /// <param name="level">The level index.</param>
    /// <param name="blockType">The block type index.</param>
    /// <param name="targetType">The target type (optional).</param>
    /// <param name="index">The index (optional).</param>
    /// <returns>The prefab object.</returns>
    /// <remarks>
    /// If the target type (targetType) or index (index) is provided, it returns the specific prefab for the given level, block type, target type, and index.
    /// If the block type index is out of range, an exception will be thrown, and an error message will be logged.
    /// </remarks>
    public GameObject GetPrefab(int level, int blockType, Targets? targetType = null, int? index = null)
    {
        if (blockType >= GetSingleLevelPrefabSet(level, targetType, index).prefabs.Length)
        {
            PushSceneBlockMessages(new List<string> { "[ERROR]ScenePrefabSet.GetPrefab:", " blockType out of range!", "targetType = ", targetType.ToString(), "level = ", level.ToString(), "blockType = ", blockType.ToString() },
                new List<string> { messageBoxController.errorColor });
            Debug.LogError("ScenePrefabSet.GetPrefab:blockType out of range!");
            return null;
        }
        return GetSingleLevelPrefabSet(level, targetType, index).prefabs[blockType];
    }

    /// <summary>
    /// Gets the number of levels for a specific target type and index.
    /// </summary>
    /// <param name="targetType">The target type (optional).</param>
    /// <param name="index">The index (optional).</param>
    /// <returns>The number of levels.</returns>
    /// <remarks>
    /// If the target type (targetType) or index (index) is provided, it returns the number of levels for the corresponding target type and index.
    /// </remarks>
    public int GetLevelNumber(Targets? targetType = null, int? index = null)
    {
        return GetAllLevlePrefabSet(targetType, index).singleLevelSet.Length;
    }

    /// <summary>
    /// Gets the number of blocks for a specific level, target type, and index.
    /// </summary>
    /// <param name="level">The level index.</param>
    /// <param name="targetType">The target type (optional).</param>
    /// <param name="index">The index (optional).</param>
    /// <returns>The number of blocks.</returns>
    /// <remarks>
    /// If the target type (targetType) or index (index) is provided, it returns the number of blocks for the corresponding level, target type, and index.
    /// </remarks>
    public int GetBlockNumber(int level, Targets? targetType = null, int? index = null)
    {
        return GetSingleLevelPrefabSet(level, targetType, index).prefabs.Length;
    }

    /// <summary>
    /// Gets the size of a specific block for a given level, block type, target type, and index.
    /// </summary>
    /// <param name="level">The level index.</param>
    /// <param name="blockType">The block type index.</param>
    /// <param name="targetType">The target type (optional).</param>
    /// <param name="index">The index (optional).</param>
    /// <returns>The block size.</returns>
    /// <remarks>
    /// If the target type (targetType) or index (index) is provided, it returns the size of the block for the specified level, block type, target type, and index.
    /// </remarks>
    public float GetBlockSize(int level, int blockType, Targets? targetType = null, int? index = null)
    {
        return GetPrefab(level, blockType, targetType, index).GetComponent<SceneBlock>().blockSize;
    }

    /// <summary>
    /// Pushes a message to the message box or debug log.推送消息到消息框或调试日志中。
    /// </summary>
    /// <param name="messageList">The list of messages.</param>
    /// <param name="colorList">The list of colors.</param>
    /// <remarks>
    /// If the message box is enabled (isHudEnabled is true), the message will be pushed to the message box, and the messages will be colored according to the provided color list.
    /// If the message box is not enabled (isHudEnabled is false), the messages will be logged as plain text in the debug log.
    /// </remarks>
    private void PushSceneBlockMessages(List<string> messageList, List<string> colorList)
    {
        if (isHudEnabled)
        {
            messageBoxController.PushMessage(messageList, colorList);
        }
        else
        {
            Debug.Log(string.Join(" ", messageList));
        }
    }
}