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

namespace PuzzleS
{
    /// <summary>
    /// Represents all puzzle steps in a level.
    /// This is automatically generated from folder structure during asset import.
    /// </summary>
    [CreateAssetMenu(fileName = "LevelPuzzleData", menuName = "AppleHills/Items & Puzzles/LevelPuzzleData")]
    public class PuzzleLevelDataSO : ScriptableObject
    {
        /// <summary>
        /// Unique identifier for this level, automatically set to match folder name
        /// </summary>
        public string levelId;
        
        /// <summary>
        /// Display name for this level
        /// </summary>
        public string displayName;
        
        /// <summary>
        /// All puzzle steps in this level
        /// </summary>
        public List<PuzzleStepSO> allSteps = new List<PuzzleStepSO>();
        
        /// <summary>
        /// Steps that should be unlocked at level start (no dependencies)
        /// </summary>
        public List<PuzzleStepSO> initialSteps = new List<PuzzleStepSO>();
        
        /// <summary>
        /// Pre-processed dependency data built at edit time.
        /// Maps step IDs to arrays of dependency step IDs (which steps are required by each step)
        /// </summary>
        public Dictionary<string, string[]> stepDependencies = new Dictionary<string, string[]>();
        
        /// <summary>
        /// Check if all steps in the level are complete
        /// </summary>
        public bool IsLevelComplete(HashSet<PuzzleStepSO> completedSteps)
        {
            if (completedSteps == null) return false;
            
            foreach (var step in allSteps)
            {
                if (step != null && !completedSteps.Contains(step))
                {
                    return false;
                }
            }
            return true;
        }
        
        /// <summary>
        /// Gets all steps that will be unlocked by completing the given step
        /// </summary>
        public List<PuzzleStepSO> GetUnlockedSteps(PuzzleStepSO completedStep)
        {
            return completedStep != null ? completedStep.unlocks : new List<PuzzleStepSO>();
        }

        /// <summary>
        /// Check if this step is an initial step (no dependencies)
        /// </summary>
        public bool IsInitialStep(PuzzleStepSO step)
        {
            return step != null && initialSteps.Contains(step);
        }
    }
}