import pytest

from tft.model.baseline import classify_role, unit_value
from tft.model.calibrate import spearman
from tft.model.score import active_trait_tiers, board_profiles, score_board

STATIC = {
    "units": {
        "TFT17_A": {
            "cost": 1,
            "traits": ["TFT17_Tank"],
            "role": "Tank",
            "stats": {"hp": 650, "armor": 40, "magicResist": 40, "damage": 50,
                      "attackSpeed": 0.6, "mana": 60, "initialMana": 0, "range": 1},
        },
        "TFT17_B": {
            "cost": 4,
            "traits": ["TFT17_Tank"],
            "role": "Marksman",
            "stats": {"hp": 700, "armor": 25, "magicResist": 25, "damage": 75,
                      "attackSpeed": 0.75, "mana": 100, "initialMana": 20, "range": 4},
        },
    },
    "traits": {
        "TFT17_Tank": {
            "breakpoints": [{"min_units": 2, "style": 1}, {"min_units": 4, "style": 3}],
        },
    },
}

ARTIFACT = {
    "meta": {"set": 17},
    "static": {
        **STATIC,
        "items": {"TFT_Item_InfinityEdge": {"effects": {"AD": 0.35, "CritChance": 35.0}}},
        "augments": {},
    },
    "roles": {},
}


def test_unit_value():
    assert unit_value(1, 1) == 1
    assert unit_value(4, 2) == 12
    assert unit_value(3, 3) == 27


def test_classify_role_from_cdragon_role():
    assert classify_role(STATIC["units"]["TFT17_A"]) == "frontline"
    assert classify_role(STATIC["units"]["TFT17_B"]) == "ad_carry"


def test_trait_activation():
    board = [{"api_name": "TFT17_A", "stars": 1, "items": []},
             {"api_name": "TFT17_B", "stars": 1, "items": []}]
    tiers = active_trait_tiers(board, STATIC["traits"], STATIC["units"])
    assert tiers == {"TFT17_Tank": 1}
    assert active_trait_tiers(board[:1], STATIC["traits"], STATIC["units"]) == {}


def test_score_ordering():
    weak = [{"api_name": "TFT17_A", "stars": 1, "items": []}]
    strong = [{"api_name": "TFT17_B", "stars": 2, "items": []}]
    assert score_board(strong, [], ARTIFACT) > score_board(weak, [], ARTIFACT)


def test_items_increase_score():
    bare = [{"api_name": "TFT17_B", "stars": 1, "items": []}]
    with_item = [{"api_name": "TFT17_B", "stars": 1, "items": ["TFT_Item_InfinityEdge"]}]
    assert score_board(with_item, [], ARTIFACT) > score_board(bare, [], ARTIFACT)


def test_augments_ignored():
    board = [{"api_name": "TFT17_B", "stars": 1, "items": []}]
    assert score_board(board, ["TFT17_Augment_X"], ARTIFACT) == \
        score_board(board, [], ARTIFACT)


def test_board_profiles_roles_and_unknown_units():
    board = [{"api_name": "TFT17_A", "stars": 1, "items": []},
             {"api_name": "TFT17_B", "stars": 1, "items": []},
             {"api_name": "UNKNOWN", "stars": 1, "items": []}]
    profiles = board_profiles(board, ARTIFACT)
    assert len(profiles) == 2  # unbekannte Units fallen raus
    tank, carry = profiles
    assert tank["defensive"] and not carry["defensive"]
    assert tank["def"] > carry["def"]
    assert carry["off"] > tank["off"]


def test_spearman():
    assert spearman([1, 2, 3, 4], [10, 20, 30, 40]) == pytest.approx(1.0)
    assert spearman([1, 2, 3, 4], [40, 30, 20, 10]) == pytest.approx(-1.0)
    assert spearman([1, 2, 3, 4], [10, 10, 10, 10]) == 0.0


def test_craftable_item_pool():
    from tft.model.artifact import craftable_items
    items = {
        "TFT_Item_InfinityEdge": {"composition": ["TFT_Item_BFSword", "TFT_Item_SparringGloves"]},
        "TFT_Item_BFSword": {"composition": []},
        "TFT_Item_Emblem": {"composition": ["TFT_Item_Spatula", "TFT_Item_BFSword"]},
        "TFT17_Item_Weird": {"composition": ["TFT_Item_BFSword", "TFT_Item_BFSword"]},
        "TFT_Item_Radiant": {"composition": None},
    }
    assert craftable_items(items) == ["TFT_Item_InfinityEdge"]


def _built_artifact():
    from tft.model import artifact as artifact_mod

    static = {
        "meta": {"set": 17, "patch": "test"},
        "units": {
            "TANK": {"cost": 2, "traits": ["T_AD"], "role": "Tank",
                     "stats": {"hp": 900, "armor": 50, "magicResist": 50, "damage": 45,
                               "attackSpeed": 0.6, "mana": 60, "initialMana": 0},
                     "spell_damage": None, "spell_scaling": None},
            "CARRY": {"cost": 2, "traits": ["T_AD"], "role": "Marksman",
                      "stats": {"hp": 600, "armor": 20, "magicResist": 20, "damage": 70,
                                "attackSpeed": 0.8, "mana": 50, "initialMana": 0},
                      "spell_damage": [0, 250, 375, 560, 0, 0, 0], "spell_scaling": "ad"},
        },
        "traits": {"T_AD": {"breakpoints": [
            {"min_units": 2, "style": 1, "variables": {"BonusAP": 20.0}}]}},
        "items": {"SWORD": {"effects": {"AD": 0.35}}},
        "augments": {},
    }
    return artifact_mod.build(static)


def test_balanced_beats_lopsided():
    art = _built_artifact()
    balanced = [{"api_name": "TANK", "stars": 1, "items": []},
                {"api_name": "CARRY", "stars": 1, "items": []}]
    tanks = [{"api_name": "TANK", "stars": 1, "items": []} for _ in range(2)]
    assert score_board(balanced, [], art) > score_board(tanks, [], art)


def test_items_and_stars_raise_strength():
    art = _built_artifact()
    base = [{"api_name": "CARRY", "stars": 1, "items": []}]
    starred = [{"api_name": "CARRY", "stars": 2, "items": []}]
    equipped = [{"api_name": "CARRY", "stars": 1, "items": ["SWORD"]}]
    assert score_board(starred, [], art) > score_board(base, [], art)
    assert score_board(equipped, [], art) > score_board(base, [], art)