#!/usr/bin/env python

import os
import sys
import argparse
import itertools
import json
import textwrap

# Append the src dir
sys.path.append(os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'src'))

import pass_pipeline_library
import passes

normal_pipeline = [x for x in pass_pipeline_library.normal_passpipelines()]
pass_pipelines = [x.identifier for x in normal_pipeline]

parser = argparse.ArgumentParser(description=textwrap.dedent("""
Generate pass pipelines based off of the normal swift pipeline.
"""))

parser.add_argument('--disable-pass', nargs='*', help='Disable this pass',
                    choices=[x.name for x in passes.PASSES], action='append', default=[])
parser.add_argument('--disable-passpipeline', nargs='*', help='Disable this pass list',
                    choices=pass_pipelines, default=[], action='append')

args = parser.parse_args()

disabled_passes = sum(args.disable_pass, [])
disabled_passpipelines = sum(args.disable_passpipeline, [])

# First filter out pipelines.
normal_pipeline_generated = [x.generate() for x in normal_pipeline if not x.identifier in disabled_passpipelines]

# Then filter out specific passes.
for i in range(len(normal_pipeline_generated)):
    normal_pipeline_generated[i] = [x for x in normal_pipeline_generated[i] if x not in disabled_passes]

json.dump(normal_pipeline_generated, sys.stdout)