import sys
import json
sys.path.insert(0, "src")

from src.engine.tools import run
from src.engine.db import init_db, create_campaign, create_character, update_character


def _setup_char():
    conn = init_db()
    camp_id = create_campaign("Test", "Avventura")
    char_id = create_character(camp_id, "TestChar", "guerriero", "soldato")
    update_character(
        char_id,
        level=1, str=15, agi=11, sta=14,
        per=9, int=8, lck=10,
        hp_current=12, hp_max=12, ac=15,
        armor_type="light",
    )
    return camp_id, char_id


def test_roll_dice_tool():
    r = run("roll_dice", die="d20")
    assert r["success"] is True
    assert r["tool"] == "roll-dice"
    assert 1 <= r["total"] <= 20


def test_dice_chain_tool():
    r = run("dice_chain", die="d3", steps=2)
    assert r["success"] is True
    assert r["output_die"] == "d5"


def test_unknown_tool():
    r = run("nonexistent")
    assert r["success"] is False
    assert "sconosciuto" in r["message"]


def test_ability_check():
    _, char_id = _setup_char()
    r = run("ability_check", character_id=char_id, dc=12, modifier=2)
    assert r["success"] is True
    assert "d20" in r["message"]


def test_saving_throw():
    _, char_id = _setup_char()
    r = run("saving_throw", character_id=char_id, save_type="Tempra", dc=15)
    assert r["success"] is True
    assert r["save_type"] == "Tempra"


def test_saving_throw_invalid_type():
    _, char_id = _setup_char()
    r = run("saving_throw", character_id=char_id, save_type="Forza", dc=15)
    assert r["success"] is False


def test_movement():
    r = run("movement", distance_m=30, terrain="normale")
    assert r["success"] is True
    assert r["rounds"] == 3
    assert r["speed_m_per_round"] == 12


def test_movement_difficult():
    r = run("movement", distance_m=30, terrain="difficile")
    assert r["success"] is True
    assert r["rounds"] == 5


def test_spellcasting():
    _, char_id = _setup_char()
    r = run("spellcasting", character_id=char_id, spell_name="Dardo Incantato", spell_check=18, dc=12)
    assert r["success"] is True
    assert r["result_tier"] in ("minore", "moderato", "maggiore")


def test_spellcasting_failure():
    _, char_id = _setup_char()
    r = run("spellcasting", character_id=char_id, spell_name="Dardo Incantato", spell_check=5, dc=12)
    assert r["success"] is True
    assert "fallisce" in r["message"]


def test_update_inventory():
    _, char_id = _setup_char()
    r = run("update_inventory", character_id=char_id, item="Pozione di Cura")
    assert r["success"] is True
    assert "Pozione di Cura" in r["message"]


def test_award_xp():
    _, char_id = _setup_char()
    r = run("award_xp", character_id=char_id, xp=5)
    assert r["success"] is True
    assert r["xp_gained"] == 5


def test_award_xp_levelup():
    camp_id, _ = _setup_char()
    # Create a lv0 character (contadino) to test level-up
    import src.engine.db as db
    lv0_id = db.create_character(camp_id, "Lv0 Hero", "contadino", "contadino")
    db.update_character(lv0_id, level=0, xp=0)
    r1 = run("award_xp", character_id=lv0_id, xp=10)
    assert r1["xp_total"] == 10
    assert r1["leveled_up"] is True


def test_dm_override():
    r = run("dm_override", command="narrate", params={"text": "Una luce accecante."})
    assert r["success"] is True
    assert r["tool"] == "dm-override"


def test_dm_override_help():
    r = run("dm_override", command="help")
    assert r["success"] is True
    assert "commands" in r


def test_update_quest_tool():
    camp_id, _ = _setup_char()
    import src.engine.db as db
    qid = db.add_quest(camp_id, "Missione Test", "Descrizione test")
    r = run("update_quest", quest_id=qid, status="completed")
    assert r["success"] is True
    assert r["status"] == "completed"
    assert "Missione Test" in r["message"]


def test_update_quest_invalid_status():
    camp_id, _ = _setup_char()
    import src.engine.db as db
    qid = db.add_quest(camp_id, "Missione", "")
    r = run("update_quest", quest_id=qid, status="impossibile")
    assert r["success"] is False


def test_update_quest_not_found():
    r = run("update_quest", quest_id=99999, status="completed")
    assert r["success"] is False
    assert "non trovata" in r["message"]


def test_update_quest_with_name():
    camp_id, _ = _setup_char()
    import src.engine.db as db
    qid = db.add_quest(camp_id, "Vecchio Nome", "")
    r = run("update_quest", quest_id=qid, status="active", name="Nuovo Nome")
    assert r["success"] is True
    assert "Nuovo Nome" in r["name"]


def test_combat():
    _, char_id = _setup_char()
    r = run(
        "combat",
        character_id=char_id,
        target_ac=15,
        attack_bonus=2,
        damage_die="d8",
        mighty_deed_die="d3",
        luck_mod=0,
        armor_type="medium",
    )
    assert r["success"] is True
    assert r["tool"] == "combat"
    assert isinstance(r["hit"], bool)