"""Batch 3 (V6c): the final 32 PC-sheet spells added to data/spells/.

Given: the registry directory with the 11 original spells plus batches 1-2 (75)
When: load_spell_registry / load_spell is called
Then: every batch-3 spell loads with the expected level/school/range/save,
the registry reaches exactly 107 (11 + 96), every effect validates against the
schema (parsing raises on any unknown field value or condition), and the
registry covers EVERY spell name referenced by data/pcs/*.json (no missing
spell remains).
"""

from __future__ import annotations

import json
from pathlib import Path

import pytest

from pf1e_simulator.conditions import CONDITIONS_BY_NAME
from pf1e_simulator.spells import (
    AreaEffect,
    BuffEffect,
    ConditionEffect,
    DamageEffect,
    HealEffect,
    SpellEffect,
    SpellSpec,
    SummonEffect,
    load_spell,
    load_spell_registry,
)

_SPELLS_DIR = Path(__file__).resolve().parent.parent / "data" / "spells"
_PCS_DIR = Path(__file__).resolve().parent.parent / "data" / "pcs"

_BATCH2_COUNT = 75

# name -> (file stem, level, school, range, save)
_BATCH3: dict[str, tuple[str, int, str, str, str]] = {
    "Ray of Enfeeblement": ("ray_of_enfeeblement", 1, "necromancy", "close", "fort"),
    "Ray of Frost": ("ray_of_frost", 0, "evocation", "close", "none"),
    "Read Magic": ("read_magic", 0, "divination", "personal", "none"),
    "Resistance": ("resistance", 0, "abjuration", "touch", "will"),
    "Restoration, Lesser": ("restoration_lesser", 2, "conjuration", "touch", "will"),
    "Sanctuary": ("sanctuary", 1, "abjuration", "touch", "will"),
    "Saving Finale": ("saving_finale", 1, "evocation", "close", "will"),
    "Scorching Ray": ("scorching_ray", 2, "evocation", "close", "none"),
    "Shard of Chaos": ("shard_of_chaos", 2, "evocation", "close", "will"),
    "Shield": ("shield", 1, "abjuration", "personal", "none"),
    "Shield of Faith": ("shield_of_faith", 1, "abjuration", "touch", "will"),
    "Shocking Grasp": ("shocking_grasp", 1, "evocation", "touch", "none"),
    "Silence": ("silence", 2, "illusion", "long", "will"),
    "Sleep": ("sleep", 1, "enchantment", "medium", "will"),
    "Sound Burst": ("sound_burst", 2, "evocation", "close", "fort"),
    "Spark": ("spark", 0, "evocation", "close", "fort"),
    "Spear of Purity": ("spear_of_purity", 2, "evocation", "close", "will"),
    "Spiritual Weapon": ("spiritual_weapon", 2, "evocation", "medium", "none"),
    "Stabilize": ("stabilize", 0, "conjuration", "close", "will"),
    "Status": ("status", 2, "divination", "touch", "will"),
    "Stave Off Corruption": ("stave_off_corruption", 2, "abjuration", "touch", "will"),
    "Summon Instrument": ("summon_instrument", 0, "conjuration", "personal", "none"),
    "Summon Monster I": ("summon_monster_i", 1, "conjuration", "close", "none"),
    "Suppress Charms and Compulsions": (
        "suppress_charms_and_compulsions", 2, "abjuration", "close", "will",
    ),
    "Surmount Affliction": ("surmount_affliction", 2, "abjuration", "personal", "none"),
    "Tears to Wine": ("tears_to_wine", 2, "transmutation", "close", "will"),
    "Touch of Fatigue": ("touch_of_fatigue", 0, "necromancy", "touch", "fort"),
    "Unseen Servant": ("unseen_servant", 1, "conjuration", "close", "none"),
    "Vanish": ("vanish", 1, "illusion", "touch", "will"),
    "Virtue": ("virtue", 0, "transmutation", "touch", "none"),
    "Weapon of Awe": ("weapon_of_awe", 2, "transmutation", "touch", "will"),
    "Web": ("web", 2, "conjuration", "medium", "ref"),
}

_EFFECT_TYPES = (
    DamageEffect,
    ConditionEffect,
    HealEffect,
    BuffEffect,
    AreaEffect,
    SummonEffect,
)


def _walk_effects(effects: tuple[SpellEffect, ...]) -> list[SpellEffect]:
    flat: list[SpellEffect] = []
    for effect in effects:
        flat.append(effect)
        if isinstance(effect, AreaEffect):
            flat.extend(_walk_effects(effect.effects))
    return flat


class TestBatch3Loading:
    """Each batch-3 spell loads with the expected metadata."""

    @pytest.mark.parametrize(
        ("name", "stem", "level", "school", "range_", "save"),
        [
            (name, *fields) for name, fields in sorted(_BATCH3.items())
        ],
    )
    def test_spell_fields(
        self, name: str, stem: str, level: int, school: str, range_: str, save: str
    ) -> None:
        spell = load_spell(_SPELLS_DIR / f"{stem}.json")
        assert spell.name == name
        assert spell.level == level
        assert spell.school == school
        assert spell.range == range_
        assert spell.save == save
        assert spell.base_dc == 10
        assert spell.description

    def test_registry_reaches_107(self) -> None:
        reg = load_spell_registry(_SPELLS_DIR)
        assert len(reg) == _BATCH2_COUNT + 32 == 107
        assert set(_BATCH3) <= set(reg)

    def test_every_effect_validates(self) -> None:
        reg = load_spell_registry(_SPELLS_DIR)
        for name in _BATCH3:
            spell: SpellSpec = reg[name]
            for effect in _walk_effects(spell.effects):
                assert isinstance(effect, _EFFECT_TYPES)
                if isinstance(effect, ConditionEffect):
                    assert effect.condition_name in CONDITIONS_BY_NAME
                if isinstance(effect, BuffEffect):
                    assert effect.modifiers
                if isinstance(effect, SummonEffect):
                    assert effect.creature


class TestFullPcSpellCoverage:
    """The registry now covers every spell name referenced by the PC sheets."""

    def test_no_pc_spell_is_missing_from_the_registry(self) -> None:
        reg = load_spell_registry(_SPELLS_DIR)
        missing: set[tuple[str, str]] = set()
        for path in sorted(_PCS_DIR.glob("*.json")):
            data = json.loads(path.read_text())
            for spell_name in data.get("spells", []):
                if spell_name not in reg:
                    missing.add((path.name, spell_name))
        assert not missing