from pathlib import Path
from common import load_json
from urllib.parse import urlparse, quote as urlquote, unquote as urlunquote
from rdflib import Graph, Namespace, RDF, DCTERMS, URIRef
import subprocess


XPUB = Namespace("http://xpub.nl/terms/")

def url_to_path (url):
    parts = urlparse(url)
    if parts.hostname == "project.xpub.nl":
        path = urlunquote(parts.path.lstrip('/'))
        return Path(path)

def path_to_url(path):
    return "https://project.xpub.nl/" + urlquote(str(path))

def make_cover (inpath, outpath, page=1):
    p = subprocess.run(["gs", "-dSAFER", "-r600", "-sDEVICE=jpeg", f"-dFirstPage={page}", f"-dLastPage={page}", "-o", outpath, inpath])
    if p.returncode == 0:
        p = subprocess.run(["mogrify", "-resize", "640x", outpath])
    return p.returncode == 0


g = Graph()
data = load_json()
for project in data['projects']:
    print (project['thesis'])
    p = url_to_path(project['thesis'])
    cover_path = p.parent / (p.stem + ".cover.jpg")
    g.add((URIRef(project['url']), XPUB['cover'], URIRef(path_to_url(cover_path))))
    print (f"    {p}->{cover_path}")
    if not cover_path.exists():
        make_cover(p, cover_path)

with open("covers.json", "w") as fout:
    # print (g.serialize(), file=fout)
    print (g.serialize(format="json-ld", context="https://xpub.nl/contexts/projects.json"), file=fout)


# from generated_covers import books_with_generated_covers
# import subprocess
# from shutil import copyfile

# for dbid, path in books_with_generated_covers("calibre"):
#     for pdf in path.glob("*.pdf"):
#         print (pdf)
#         # gs -dSAFER -r600 -sDEVICE=jpeg -dFirstPage=2 -dLastPage=2 -o cover.jpg test.pdf && mogrify -resize 640x cover.jpg

#         # gs -dSAFER -r600 -sDEVICE=jpeg -dLastPage=1 -o cover.jpg "calibre/Michael Moss/To talk of many things_ Of shoes--and ships--and sealing-wax--Of cabbages--and kings- (85)/To talk of many things_ Of shoes--and ship - Michael Moss.pdf"
#         subprocess.run(["gs", "-dSAFER", "-r600", "-sDEVICE=jpeg", "-dLastPage=1", "-o", "cover.jpg", str(pdf)])
#         subprocess.run(["mogrify", "-resize", "1200x", "cover.jpg"])
#         subprocess.run(["exiftool", "-Comment=Generated cover: gs/pdffirstpage", "cover.jpg"])
#         copyfile("cover.jpg", path / "cover.jpg")