import json

import db

from .ensure_animation_schema import ensure_animation_schema

# Champs modifiables après création — le déplacement/redimensionnement à la
# souris dans le panneau timeline n'envoie que start_time/duration, le
# formulaire d'édition du clip peut envoyer n'importe lequel des autres.
_UPDATABLE_FIELDS = {
    "kind", "animate_name", "start_time", "duration", "delay", "easing", "iteration_count",
}


def update_animation_clip(slug, clip_id, **fields):
    ensure_animation_schema(slug)
    sets, vals = [], []
    for key, value in fields.items():
        if key == "custom_keyframes":
            sets.append("custom_keyframes = ?")
            vals.append(json.dumps(value) if value else None)
        elif key in _UPDATABLE_FIELDS and value is not None:
            if key in ("start_time", "duration", "delay"):
                value = float(value)
            sets.append(f"{key} = ?")
            vals.append(value)
    if not sets:
        return
    vals.append(clip_id)
    conn = db.connect(slug)
    conn.execute(f"UPDATE _animation_clips SET {', '.join(sets)} WHERE id = ?", vals)
    conn.commit()
    conn.close()