using UnityEngine;

/// <summary>
/// Drop this anywhere in your scene to spawn a humanoid enemy at that position.
/// Configure the enemy type in the Inspector then hit Play.
/// Delete this script after you've set up your enemies if you prefer manual placement.
/// </summary>
public class EnemySpawner : MonoBehaviour
{
    public HumanoidEnemy.EnemyType enemyType = HumanoidEnemy.EnemyType.Grunt;

    [Header("Health Override (0 = use defaults)")]
    public float healthOverride = 0f;

    void Start()
    {
        SpawnEnemy();
    }

    void SpawnEnemy()
    {
        GameObject enemyObj = new GameObject($"Enemy_{enemyType}");
        enemyObj.transform.position = transform.position;
        enemyObj.transform.rotation = transform.rotation;

        // Add CharacterController (required by HumanoidEnemy)
        CharacterController cc = enemyObj.AddComponent<CharacterController>();
        cc.slopeLimit = 45f;
        cc.stepOffset = 0.5f;

        // Add health
        EnemyHealth health = enemyObj.AddComponent<EnemyHealth>();

        // Add enemy AI + model
        HumanoidEnemy enemy = enemyObj.AddComponent<HumanoidEnemy>();
        enemy.enemyType = enemyType;

        if (healthOverride > 0f)
        {
            health.maxHealth = healthOverride;
            health.currentHealth = healthOverride;
        }
    }

    void OnDrawGizmos()
    {
        // Show enemy position in editor
        switch (enemyType)
        {
            case HumanoidEnemy.EnemyType.Grunt:
                Gizmos.color = new Color(0.8f, 0.5f, 0.2f, 0.8f);
                DrawEnemyGizmo(1f);
                break;
            case HumanoidEnemy.EnemyType.Brute:
                Gizmos.color = new Color(0.8f, 0.1f, 0.1f, 0.8f);
                DrawEnemyGizmo(1.3f);
                break;
            case HumanoidEnemy.EnemyType.Runner:
                Gizmos.color = new Color(0.2f, 0.7f, 0.2f, 0.8f);
                DrawEnemyGizmo(0.9f);
                break;
        }
    }

    void DrawEnemyGizmo(float scale)
    {
        Vector3 pos = transform.position;

        // Body
        Gizmos.DrawCube(pos + Vector3.up * 1.15f * scale, new Vector3(0.45f, 0.6f, 0.25f) * scale);
        // Head
        Gizmos.DrawSphere(pos + Vector3.up * 1.65f * scale, 0.15f * scale);
        // Legs
        Gizmos.DrawCube(pos + Vector3.up * 0.4f * scale + Vector3.left * 0.12f, new Vector3(0.18f, 0.6f, 0.18f) * scale);
        Gizmos.DrawCube(pos + Vector3.up * 0.4f * scale + Vector3.right * 0.12f, new Vector3(0.18f, 0.6f, 0.18f) * scale);

        // Direction arrow
        Gizmos.color = Color.yellow;
        Gizmos.DrawRay(pos + Vector3.up * scale, transform.forward * 1.5f);
    }
}