import argparse
import api
import mcfs
import npyscreen
import os

def validate():
    pass

def version_selector_GUI(vers:list, project:str):
    def form(*args):
        F = npyscreen.Form(name=f"Select {project} version")
        sel = F.add(npyscreen.TitleSelectOne, value=[1,], name="versions:",\
                    values=[ver.version_number + " for " +\
                            ", ".join(ver.game_versions)\
                            for ver in vers[::-1]], scroll_exit=True)
        F.edit()
        for ver in vers:
            if ver.version_number == sel.get_selected_objects()[0].split()[0]:
                return ver
        return vers[0]
    return form

def install(projects:list):
    to_install = []
    for project in projects:
        project_data = api.project(project=project)
        to_install.append(project_data)
    for project in to_install:
        versions = api.versions(ids=str(project.versions).replace("'", '"'))    #i hate this
        version = npyscreen.wrapper_basic(version_selector_GUI(versions,\
                                                     project.slug))
        file = type("mc_file", (object, ), version.files[0])
        filename = file.url.split("/")[-1]
        cache_file_path = os.path.join(mcfs.cache_dir, filename)
        if not mcfs.is_path_exist(mcfs.cache_dir):
            os.mkdir(mcfs.cache_dir)
        if not mcfs.is_path_exist(cache_file_path):
            api.download(file.url, file.size, cache_file_path)
        else:
            print(f"{filename} is in cache.")
        mcfs.install(filename)

def search():
    pass

if __name__ == "__main__":
    desc = '''Minecraft mods packet\
manager based on modrinth API\n\nMethods:\n  install  - install mod\n  \
validate - validate mods installation\n  search   - search mods'''
    parser = argparse.ArgumentParser(description=desc,\
                                formatter_class=argparse.RawTextHelpFormatter)
    parser.add_argument("method", choices=['install', 'search', 'validate'],\
                        metavar="method")
    parser.add_argument("method_args", nargs="*")
    args = parser.parse_args()
    match args.method:
        case "install":
            install(args.method_args)
        case "search":
            search()
        case "validate":
            validate()
        case _:
            print("Unknown method", args.method)
            parser.print_help()