#! /usr/bin/env python3

# --------------------------------------------------------------------
import sys, os, json, collections as cl

# --------------------------------------------------------------------
IGNORE = { 'Logic', 'Pervasive', 'Tactics' }

# --------------------------------------------------------------------
def read_eco(stream):
    return json.load(stream)

# --------------------------------------------------------------------
def create_deps(ecos):
    deps = cl.defaultdict(set)

    for econame in ecos:
        thname = os.path.basename(econame)
        thname = os.path.splitext(thname)[0]
        if thname in IGNORE:
            continue
        with open(econame) as ecostream:
            eco = read_eco(ecostream)
        deps[thname].update(
            name
                for name, data in eco['depends'].items()
                if name not in IGNORE and data['direct']
        )

    return deps

# --------------------------------------------------------------------
def print_graph(deps):
    print( "digraph interval_deps {")
    print( "  node [shape=ellipse, style=filled];")
    print(f"  {' '.join(deps.keys())};")
    for src, dsts in deps.items():
        for dst in dsts:
            print(f"  {src} -> {dst};")
    print( "}")

# --------------------------------------------------------------------
def _main():
    ecos = sys.argv[1:]
    deps = create_deps(ecos)

    print_graph(deps)

# --------------------------------------------------------------------
if __name__ == '__main__':
    _main()