"""Script à usage unique (PAS exécuté au runtime du moteur) : copie les
sprites CraftPix depuis assets/characters/animal_sprite/ (pack source, non
versionné dans static/) vers static/characters/animals/<animal>/<NN>/
<pose><i>.png, et écrit static/characters/animals/manifest.json (compte
réel de frames par pose/variante — variable selon les packs, voir le plan
"Bibliothèque de sprites animaux CraftPix"). Réutilisé une fois par moi
via `python scripts/generate_animal_sprite_manifest.py`, jamais importé
par le moteur.

Accès réservé au rôle admin (voir screens/labels/animal_sprite_library.py,
routes/screens/screen_edit.py, routes/scenes/scene_edit_view.py) : licence
CraftPix, ne redistribue pas ces sprites à des comptes "user"."""

import json
import os
import shutil
from typing import Any

_BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
_SRC_ROOT = os.path.join(_BASE_DIR, "assets", "characters", "animal_sprite")
_DST_ROOT = os.path.join(_BASE_DIR, "static", "characters", "animals")

# Nom de dossier source -> (slug interne court, libellé FR).
_PACKS = {
    "craftpix-net-125818-cute-monsters-game-character-sprites-pack": ("monster", "Monstre"),
    "craftpix-net-131088-cartoon-bunny-characters-asset-pack": ("bunny", "Lapin"),
    "craftpix-net-145571-cartoon-penguins-game-character-sprites-pack": ("penguin", "Pingouin"),
    "craftpix-net-340410-cute-chick-game-character-sprites": ("chick", "Poussin"),
    "craftpix-net-410327-cute-bear-character-sprites-pack": ("bear", "Ours"),
    "craftpix-net-454427-cute-duckling-game-character-sprites": ("duckling", "Caneton"),
    "craftpix-net-532103-cute-cats-game-character-sprites": ("cat", "Chat"),
    "craftpix-net-534018-cute-koala-game-character-sprite": ("koala", "Koala"),
    "craftpix-net-634797-cute-panda-game-person-sprites": ("panda", "Panda"),
    "craftpix-net-654141-cute-mushroom-character-game-sprites": ("mushroom", "Champignon"),
    "craftpix-net-746105-capybara-cartoon-characters-asset-pack": ("capybara", "Capybara"),
    "craftpix-net-784100-cute-pigs-game-character-sprite-pack": ("pig", "Cochon"),
    "craftpix-net-877867-cute-raccoon-game-character-sprites": ("raccoon", "Raton laveur"),
    "craftpix-net-950875-cute-beaver-character-game-sprites": ("beaver", "Castor"),
}

# Nom de pose source (dossier Png/CharacterNN/<Pose>) -> nom exposé (clé
# d'animation). "Stuned" est une coquille du pack source, corrigée ici.
_POSE_NAMES = {
    "Idle": "idle",
    "Walk": "walk",
    "Jump": "jump",
    "Fly": "fly",
    "Roll": "roll",
    "Hit": "hit",
    "Stuned": "stunned",
    "Throwing": "throwing",
    "Dead": "dead",
}


def _copy_variant(pack_dir: str, animal: str, nn: str) -> dict[str, int] | None:
    char_dir = os.path.join(pack_dir, "Png", f"Character{nn}")
    if not os.path.isdir(char_dir):
        return None
    poses: dict[str, int] = {}
    for pose_folder in sorted(os.listdir(char_dir)):
        exposed = _POSE_NAMES.get(pose_folder)
        if not exposed:
            continue
        src_pose_dir = os.path.join(char_dir, pose_folder)
        frames = sorted(f for f in os.listdir(src_pose_dir) if f.lower().endswith(".png"))
        if not frames:
            continue
        dst_dir = os.path.join(_DST_ROOT, animal, nn)
        os.makedirs(dst_dir, exist_ok=True)
        for i, fname in enumerate(frames):
            shutil.copy2(os.path.join(src_pose_dir, fname), os.path.join(dst_dir, f"{exposed}{i}.png"))
        poses[exposed] = len(frames)
    return poses or None


def main() -> None:
    manifest: dict[str, Any] = {}
    for pack_folder, (animal, label) in sorted(_PACKS.items()):
        pack_dir = os.path.join(_SRC_ROOT, pack_folder)
        if not os.path.isdir(pack_dir):
            print(f"SKIP (introuvable) : {pack_folder}")
            continue
        variants: dict[str, Any] = {}
        for n in range(1, 16):
            nn = f"{n:02d}"
            poses = _copy_variant(pack_dir, animal, nn)
            if poses:
                variants[nn] = poses
        if variants:
            manifest[animal] = {"label": label, "variants": variants}
            print(f"{animal} ({label}) : {len(variants)} variantes copiées")
        else:
            print(f"SKIP (aucune variante) : {pack_folder}")

    os.makedirs(_DST_ROOT, exist_ok=True)
    manifest_path = os.path.join(_DST_ROOT, "manifest.json")
    with open(manifest_path, "w", encoding="utf-8") as f:
        json.dump(manifest, f, ensure_ascii=False, indent=2, sort_keys=True)
    print(f"\nManifest écrit : {manifest_path}")


if __name__ == "__main__":
    main()