using BlockOutReplica.Domain;
using UnityEngine;

namespace BlockOutReplica.Gameplay
{
    public sealed class BlockOutProgress
    {
        private const string LevelKey = "BlockOutReplica.PlayerLevel.v2";
        private readonly BlockOutFlowDefinition flow;
        private readonly bool persist;
        private bool catalogCompleted;

        public int LevelNumber { get; private set; }
        public int CompletedLevels => catalogCompleted ? flow.LevelIds.Count : LevelNumber - 1;
        public bool CatalogCompleted => catalogCompleted;
        public bool IsTutorialChapter => LevelNumber <= flow.TutorialLevelCount;
        // Native Continue compares the post-win current level to threshold 10.
        public bool ShouldReturnHomeAfterWin => (long)LevelNumber + 1 >= flow.ReturnHomeFromLevel;
        public bool ShouldStartAtHome => LevelNumber >= flow.ReturnHomeFromLevel;

        public BlockOutProgress(BlockOutFlowDefinition flow, bool persist = true, int initialLevel = 1)
        {
            this.flow = flow;
            this.persist = persist;
            LevelNumber = Mathf.Clamp(persist ? PlayerPrefs.GetInt(LevelKey, 1) : initialLevel, 1,
                Mathf.Max(1, flow.LevelIds.Count));
            catalogCompleted = persist && PlayerPrefs.GetInt(LevelKey + ".Completed", 0) != 0;
        }

        public string CurrentLevelId => flow.LevelIds[LevelNumber - 1];

        public bool CompleteLevel()
        {
            if (catalogCompleted) return false;
            catalogCompleted = LevelNumber == flow.LevelIds.Count;
            LevelNumber = Mathf.Min(LevelNumber + 1, flow.LevelIds.Count);
            if (persist)
            {
                PlayerPrefs.SetInt(LevelKey, LevelNumber);
                PlayerPrefs.SetInt(LevelKey + ".Completed", catalogCompleted ? 1 : 0);
                PlayerPrefs.Save();
            }
            return true;
        }

        public void MoveBy(int direction)
        {
            LevelNumber = Mathf.Clamp(LevelNumber + direction, 1, flow.LevelIds.Count);
            catalogCompleted = false;
            if (persist) { PlayerPrefs.SetInt(LevelKey, LevelNumber); PlayerPrefs.SetInt(LevelKey + ".Completed", 0); }
        }

        public void ResetCurrentRun()
        {
            LevelNumber = 1;
            catalogCompleted = false;
            if (persist)
            {
                PlayerPrefs.SetInt(LevelKey, LevelNumber);
                PlayerPrefs.SetInt(LevelKey + ".Completed", 0);
                PlayerPrefs.Save();
            }
        }
    }
}