#!/usr/bin/env python3

# pamhyr.py -- Pamhyr entrypoint
# Copyright (C) 2023  INRAE
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.

# -*- coding: utf-8 -*-

import sys
import os
import locale
import logging

from PyQt5.QtCore import QTranslator
from PyQt5.QtWidgets import QApplication

from config import Config
from tools import (
    reset_timers, display_timers, timer,
    logger_color_blue, logger_color_red, logger_color_green, logger_color_reset
)

from View.MainWindow import ApplicationWindow
from Model.Study import Study

from Scripts.P3DST import Script3DST
from Scripts.Hello import ScriptHello
from Scripts.ListSolver import ScriptListSolver
from Scripts.Run import ScriptExport, ScriptRun

from init import legal_info, debug_info, setup_lang

logger = logging.getLogger()

scripts = {
    "hello": ScriptHello,
    "solvers": ScriptListSolver,
    "export": ScriptExport,
    "run": ScriptRun,
    "3DST": Script3DST,
}


def usage(argv):
    logger.info("")
    logger.info(f"Usage: {argv[0]} <script> <args...>")
    logger.info("")
    logger.info("Available scripts:")
    logger.info("\thelp\t\tDisplay this message")
    logger.info("\tgui\t\tRun Pamhyr graphics user interface (by default)")
    logger.info(
        "\tdebug\t\tRun Pamhyr graphics user interface " +
        "as debug mode (for developers)"
    )
    for s in scripts:
        logger.info(f"\t{s}\t\t{scripts[s].description}")
    logger.info("")


def gui(app: QApplication, conf: Config):
    application = ApplicationWindow(conf=conf)
    application.show()

    debug_info()

    return app.exec_()


def main():
    conf = Config.load()

    legal_info()

    if len(sys.argv) > 1:
        script = sys.argv[1]
    else:
        script = "gui"

    if script == "help":
        ret = usage(sys.argv)
    elif script == "gui" or script == "debug":
        if script == "debug":
            conf.debug = True

        app = QApplication(sys.argv)
        tr = setup_lang(app, conf)
        app.installTranslator(tr)
        ret = gui(app, conf)
    else:
        if script not in scripts:
            logger.error(
                f"{logger_color_red()}Invalid script name " +
                f"'{sys.argv[1]}'{logger_color_reset()}"
            )
            usage(sys.argv)
            sys.exit(-1)

        # By default script as no QApplication (allow run script
        # in tty mode)
        app = None

        application = scripts[script](app, conf, sys.argv)
        ret = application.run()
        if ret != 0:
            application.usage()

    display_timers()
    sys.exit(ret)


if __name__ == "__main__":
    main()