using System.Collections.Generic;
using UnityEngine;

namespace Quests
{
    public enum QuestState
    {
        NotStarted,
        InProgress,
        Completed,
        HandedIn
    }

    [System.Serializable]
    public class Quest
    {
        public QuestData data;
        public QuestState state;
        public List<QuestObjective> objectives;

        public bool IsAllObjectivesComplete
        {
            get
            {
                foreach (var obj in objectives)
                {
                    if (!obj.IsComplete) return false;
                }
                return true;
            }
        }

        public Quest(QuestData data)
        {
            this.data = data;
            this.state = QuestState.NotStarted;
            this.objectives = new List<QuestObjective>();

            if (data != null && data.objectives != null)
            {
                foreach (var objData in data.objectives)
                {
                    objectives.Add(new QuestObjective(objData));
                }
            }
        }

        public bool ProgressObjective(ObjectiveType type, string targetID, int amount = 1)
        {
            if (state != QuestState.InProgress) return false;

            bool updatedAny = false;
            foreach (var obj in objectives)
            {
                if (!obj.IsComplete && obj.data.objectiveType == type && obj.data.targetID == targetID)
                {
                    obj.AddProgress(amount);
                    updatedAny = true;
                    Debug.Log($"[QuestSystem] Progress updated for '{data.title}': {obj.data.description} ({obj.currentAmount}/{obj.data.requiredAmount})");
                }
            }

            if (updatedAny && IsAllObjectivesComplete)
            {
                state = QuestState.Completed;
                Debug.Log($"[QuestSystem] Quest Completed: '{data.title}'!");
            }

            return updatedAny;
        }
    }
}