"""
All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
its licensors.

For complete copyright and license terms please see the LICENSE at the root of this
distribution (the "License"). All use of this software is governed by the License,
or, if provided, by the license below or the license accompanying this file. Do not
remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
"""

import argparse
import json
import logging
import os
import sys

logger = logging.getLogger(__name__)


def report_error_and_exit(msg):
    """Log an error message and exit with error code 1."""
    logger.error(msg)
    sys.exit(1)

def check_autoexe_cfg(dev_root_folder, project):
    """
    Make sure that the project's autoexec.cfg does not contain a Map command.
    The Launcher Test framework is responsible for loading the map.
    """
    # Open the autoexec.cfg file and read the contents
    autoexec_cfg_path = os.path.join(dev_root_folder, project, 'autoexec.cfg')
    try:
        with open(autoexec_cfg_path) as f:
            content = f.readlines()
    except:
        report_error_and_exit("Failed to read contents of {}".format(autoexec_cfg_path))
    
    # Make sure no map command is detected, the Launcher Test code will be in charge of loading a map
    for line in content:
        if line.lower().startswith('map '):
            report_error_and_exit("Map command '{}' detected in {}".format(line.strip(), autoexec_cfg_path))

def check_gems_enabled(dev_root_folder, project):
    """Check the project's gems to make sure the AutomatedLauncherTesting gem is enabled."""
    # Read the gems.json file
    gems_json_path = os.path.join(dev_root_folder, project, 'gems.json')
    try:
        with open(gems_json_path) as f:
            json_data = json.load(f)
    except:
        report_error_and_exit("Failed to read contents of {}".format(gems_json_path))
    
    # Make sure AutomatedLauncherTesting is enabled
    found = False
    for gem_data in json_data['Gems']:
        if 'AutomatedLauncherTesting' in gem_data['Path']:
            found = True
            break

    if not found:
        report_error_and_exit("Automated Launcer Testing GEM not enabled in {}".format(gems_json_path))

def main():

    parser = argparse.ArgumentParser(description='Run validation on the local environment to check for required Launcher Tests config.')
    parser.add_argument('--dev-root-folder', required=True, help='Path to the root Lumberyard dev folder.')
    parser.add_argument('--project', required=True, help='Lumberyard project.')
    args = parser.parse_args()

    logging.basicConfig(level=logging.DEBUG)
    
    logger.info("Running validation for project {} ...".format(args.project))
    
    check_autoexe_cfg(args.dev_root_folder, args.project)
    
    check_gems_enabled(args.dev_root_folder, args.project)

    logger.info('Validation complete.')

if __name__== '__main__':
    main()