#! /usr/bin/python3

from sys import argv, path
from pathlib import Path
path.append(str(Path(__file__).parent.parent.parent / "splat"))
path.append(str(Path(__file__).parent.parent.parent / "splat_ext"))
from pm_npc_sprites import Sprite

if __name__ == "__main__":
    if len(argv) < 4:
        print("usage: gen_sprite_animations_h.py [OUT] [DIR] [ID]")
        exit(1)

    _, outfile, sprite_dir, s = argv

    with open(outfile, "w") as f:
        # get sprite index
        s = int(s)
        assert s >= 1

        sprite_dir = Path(sprite_dir)

        sprite = Sprite.from_dir(sprite_dir, read_images=False)
        sprite_name = sprite_dir.stem

        f.write(f"#ifndef _NPC_SPRITE_{sprite_name.upper()}_H_\n")
        f.write(f"#define _NPC_SPRITE_{sprite_name.upper()}_H_\n")
        f.write("\n")
        f.write('#include "types.h"\n')
        f.write("\n")

        # sprite definition
        f.write(f"#define SPR_{sprite_name} 0x{s:02X}\n")
        f.write("\n")

        # definitions for images
        for i, image_name in enumerate(sprite.image_names):
            f.write(f"#define SPR_IMG_{sprite_name}_{image_name} 0x{i:X}\n")
        f.write("\n")

        # definitions for palettes 
        for p, palette_name in enumerate(sprite.palette_names):
            if palette_name == "Default":
                f.write(f"#define SPR_PAL_{sprite_name} 0x{p:X}\n")
            else:
                f.write(f"#define SPR_PAL_{sprite_name}_{palette_name} 0x{p:X}\n")
        f.write("\n")

        # definitions for animations 
        for p, palette_name in enumerate(sprite.palette_names):
            for a, name in enumerate(sprite.animation_names):
                if palette_name == "Default":
                    f.write(f"#define ANIM_{sprite_name}_{name} 0x{s:02X}{p:02X}{a:02X}\n")
                else:
                    f.write(f"#define ANIM_{sprite_name}_{palette_name}_{name} 0x{s:02X}{p:02X}{a:02X}\n")
            f.write("\n")

        f.write("#endif\n")