"""Cliget - install cli tools in you user profile

Usage:
  cliget [-v] [-c URL] list
  cliget [-v] [-c URL] search PAT
  cliget [-v] [-c URL] update [--all] [TOOL ...]

list            list all installed tools
search          search for tools in the catalog with the given pattern
update          list all updatable tools
update TOOL     update tools
update --all    update all updatable tools


Options:
  -h, --help
  -c, --catalog URL
  -v, --verbose
"""

import sys, os
from docopt import docopt
from yaml import load, SafeLoader
from semver import VersionInfo
import re
from subprocess import run, CalledProcessError, TimeoutExpired
from fuzzywuzzy import fuzz

def debug(*mess):
  #print("DEBUG", mess)
  pass

class DotDict(dict):
        def __getattr__(self, name):
                return self[name] if name in self else None

def loadcatalog(options)->dict:
  catalog=options.get('__catalog', 'catalog.yaml')
  return load(open(catalog), SafeLoader)

def find_semver(s:str) -> VersionInfo:
  ver = VersionInfo(0,0,0)
  try:
    ver = VersionInfo.parse(s)
  except ValueError:
    try:
      ver = VersionInfo(*list(i.group(0) for i in re.finditer('\d+', s))[:3])
    except Exception as e:
      debug("parse error", e)
  return ver
    

_version = lambda cmd: run([cmd, '--version'], input='', text=True, capture_output=True, check=True, timeout=0.1).stdout.split('\n')[0]

def _internal_list(options) -> tuple[str,VersionInfo]:
  """list installed tools and their version"""
  ctl = loadcatalog(options)
  for cli, props in ctl.items():
    # search in path
    try:
      vers = _version(cli)
      debug(cli, vers)
      yield cli, props, find_semver(vers)
    except CalledProcessError:
      debug(cli, "call error")
    except TimeoutExpired:
      debug(cli, "timeout")
    except FileNotFoundError:
      debug(cli, "not found")

def dolist(options):
  for (cli, _, ver) in _internal_list(options):
    print(cli, ver)

def dosearch(options):
  pat = options.PAT
  ctl = loadcatalog(options)
  L = []
  for cli, props in ctl.items():
    debug(cli, props)
    rtitle = fuzz.ratio(cli, pat)
    rdesc = fuzz.partial_ratio(props['desc'], pat)
    score = 2 * rtitle + rdesc
    L.append((cli, props['desc'], score))
  L = sorted(L, key=lambda x: -x[-1])
  # TODO format a as table
  print("\n".join("|".join(map(str,l)) for l in L[:10]))

def dolistupdate(options):
  print("look for updatables")
  for (cli, props, ver) in _internal_list(options):
    # get last version online
    if props.github:
      pass
  pass
  
if __name__ == '__main__':
  options = docopt(__doc__, version='Cliget 0.1.0')
  options = DotDict({k.replace('-','_'):v for (k,v) in options.items() if v is not None})
  debug(options)
  if options.list:
    dolist(options)
  elif options.search:
    dosearch(options)
  elif options.update:
    if not options.__all and len(options.TOOL)==0:
      dolistupdate(options)
    else:
      print("not implemented")