#!/usr/bin/env python3

""" Generates build.ninja for iditacards build in output/. """

import glob
import subprocess
import json
import os

cue_sources = glob.glob(f'*.cue')
yaml_sources = glob.glob(f'*.yaml')
sources = cue_sources + yaml_sources

everything = json.loads(subprocess.run(['cue', 'export', '--'] + sources, stdout=subprocess.PIPE).stdout)

assets = everything['assets']
pseudos = everything['pseudoassets']
all_assets = { **assets, **pseudos }

print('# Generated from configure.sh, do not edit this file!\n')

with open(f'{script_dir}/rules.ninja', 'r') as f:
    print(f.read())

print(f'''
base = .

rule configure
  description = recreate $out using $in
  command = $in > $out
  generator = 1
  restat = 1

build build.ninja: configure ./configure.py | {' '.join(sources)}

build output/.everything.json: cuegen {' '.join(sources)}
  filter = .
''')

for name, asset in all_assets.items():
    assetdir = os.path
    if asset['kind'] == 'template':
        print(f'''
build output/.{name}.update | .{name}.json: extract .everything.json
  filter = --arg asset '{name}' '.assets[$$asset].data'
  target = .{name}.json

build tex/{name}.tex: template2tex .{name}.json | ../templates/{asset["template"]}
  template = ../templates/{asset["template"]}

build {name}.pdf: tex2pdf tex/{name}.tex || .{name}.pdf.dd
  dyndep = .{name}.pdf.dd

build .{name}.pdf.dd: scantex tex/{name}.tex
  target = {name}.pdf

build {name}.{'raw.' if 'print' in asset else ''}png: pdf2png {name}.pdf
  w = {asset['size'].split('x')[0]}
  h = {asset['size'].split('x')[1]}
''')

    if asset['kind'] == 'image':
        print(f'''
build {name}.{'raw.' if 'print' in asset else ''}png: copy ../{asset['source']}
''')

    if asset['kind'] == 'tex':
        print(f'''
build {name}.pdf: tex2pdf ../{asset['source']} || .{name}.pdf.dd
  dyndep = .{name}.pdf.dd

build .{name}.pdf.dd: scantex ../{asset['source']}
  target = {name}.pdf

build {name}.{'raw.' if 'print' in asset else ''}png: pdf2png {name}.pdf
  w = {asset['size'].split('x')[0]}
  h = {asset['size'].split('x')[1]}
''')

    if asset['kind'] == 'texdoc':
        print(f'''
build {name}.pdf: tex2pdf2x ../{asset['source']} || .{name}.pdf.dd
  dyndep = .{name}.pdf.dd

build .{name}.pdf.dd: scantex ../{asset['source']}
  target = {name}.pdf
''')

    if asset['kind'] == 'cat':
        print(f'''
build {name}.pdf: pdfunite {' '.join(content + '.pdf' for content in asset['contents'])}
''')

    if 'print' in asset:
        print(f'''
build {name}.png: convert {name}.raw.png
  args = {asset['print']}
''')