# -*- coding: utf-8 -*-

from paver.easy import *
from paver.doctools import cog

import fnmatch

# patch to let it support list of patterns
def new_fnmatch(self, pattern):
    if type(pattern) == list:
        for p in pattern:
            if fnmatch.fnmatch(self.name, p):
                return True
        return False
    else:
        return fnmatch.fnmatch(self.name, pattern)


path.fnmatch = new_fnmatch

import os
import sys
import re
from subprocess import call, Popen

PROJECT_DIR = path(__file__).dirname()
sys.path.append(PROJECT_DIR)

from pyload import __version__

options = environment.options
options(
    sphinx=Bunch(
        builddir="_build",
        sourcedir=""
    ),
    apitypes=Bunch(
        path="thrift",
    ),
    virtualenv=Bunch(
        dir="env",
        python="python2",
        virtual="virtualenv2",
    ),
    cog=Bunch(
        pattern=["*.py", "*.rst"],
    )
)

# xgettext args
xargs = ["--from-code=utf-8", "--copyright-holder=pyLoad Team", "--package-name=pyLoad",
         "--package-version=%s" % __version__, "--msgid-bugs-address='bugs@pyload.org'"]


@task
@needs('cog')
def html():
    """Build html documentation"""
    module = path("docs") / "pyload"
    module.rmtree()
    call_task('paver.doctools.html')



@task
@cmdopts([
    ('path=', 'p', 'Thrift path'),
])
def apitypes(options):
    """ Generate data types stubs """

    outdir = PROJECT_DIR / "pyload" / "remote"

    if (outdir / "gen-py").exists():
        (outdir / "gen-py").rmtree()

    cmd = [options.apitypes.path, "-strict", "-o", outdir, "--gen", "py:slots,dynamic", outdir / "pyload.thrift"]

    print "running", cmd

    p = Popen(cmd)
    p.communicate()

    (outdir / "thriftgen").rmtree()
    (outdir / "gen-py").move(outdir / "thriftgen")

    #create light ttypes
    from pyload.remote.create_apitypes import main

    main()
    from pyload.remote.create_jstypes import main

    main()


@task
def webapp():
    """ Builds the pyload web app. Nodejs and npm must be installed """

    os.chdir(PROJECT_DIR / "pyload" / "web")

    # Preserve exit codes
    ret = call(["npm", "install", "--no-color"])
    if ret:
        exit(ret)
    ret = call(["bower", "install", "--no-color"])
    if ret:
        exit(ret)
    ret = call(["grunt", "--no-color"])
    if ret:
        exit(ret)


@task
def generate_locale():
    """ Generates localisation files """
    # TODO restructure, many references are outdated

    EXCLUDE = ["BeautifulSoup.py", "module/gui", "module/cli", "web/locale", "web/ajax", "web/cnl", "web/pyload",
               "setup.py"]
    makepot("core", path("pyload"), EXCLUDE, "./pyLoadCore.py\n")

    makepot("cli", path("module") / "cli", [], includes="./pyLoadCli.py\n")
    makepot("setup", "", [], includes="./module/setup.py\n")

    EXCLUDE = ["ServerThread.py", "web/media/default"]

    # strings from js files
    strings = set()

    for fi in path("module/web").walkfiles():
        if not fi.name.endswith(".js") and not fi.endswith(".coffee"): continue
        with open(fi, "rb") as c:
            content = c.read()

            strings.update(re.findall(r"_\s*\(\s*\"([^\"]+)", content))
            strings.update(re.findall(r"_\s*\(\s*\'([^\']+)", content))

    trans = path("module") / "web" / "translations.js"

    with open(trans, "wb") as js:
        for s in strings:
            js.write('_("%s")\n' % s)

    makepot("web", path("module/web"), EXCLUDE, "./%s\n" % trans.relpath(), [".py", ".html"], ["--language=Python"])

    trans.remove()

    path("includes.txt").remove()

    print "Locale generated"


@task
def tests():
    """ Run nosetests """
    call(["tests/nosetests.sh"])


@task
@cmdopts([
    ('virtual=', 'v', 'virtualenv path'),
    ('python=', 'p', 'python path')
])
def virtualenv(options):
    """Setup virtual environment"""
    if path(options.dir).exists():
        return

    call([options.virtual, "--no-site-packages", "--python", options.python, options.dir])
    print "$ source %s/bin/activate" % options.dir


@task
def clean_env():
    """Deletes the virtual environment"""
    env = path(options.virtualenv.dir)
    if env.exists():
        env.rmtree()


@task
def clean():
    """Cleans build directories"""
    path("build").rmtree()
    path("dist").rmtree()


#helper functions

def walk_trans(path, EXCLUDE, endings=[".py"]):
    result = ""

    for f in path.walkfiles():
        if [True for x in EXCLUDE if x in f.dirname().relpath()]: continue
        if f.name in EXCLUDE: continue

        for e in endings:
            if f.name.endswith(e):
                result += "./%s\n" % f.relpath()
                break

    return result


def makepot(domain, p, excludes=[], includes="", endings=[".py"], xxargs=[]):
    print "Generate %s.pot" % domain

    f = open("includes.txt", "wb")
    if includes:
        f.write(includes)

    if p:
        f.write(walk_trans(path(p), excludes, endings))

    f.close()

    call(["xgettext", "--files-from=includes.txt", "--default-domain=%s" % domain] + xargs + xxargs)

    # replace charset und move file
    with open("%s.po" % domain, "rb") as f:
        content = f.read()

    path("%s.po" % domain).remove()
    content = content.replace("charset=CHARSET", "charset=UTF-8")

    with open("locale/%s.pot" % domain, "wb") as f:
        f.write(content)


def change_owner(dir, uid, gid):
    for p in dir.walk():
        p.chown(uid, gid)


def change_mode(dir, mode, folder=False):
    for p in dir.walk():
        if folder and p.isdir():
            p.chmod(mode)
        elif p.isfile() and not folder:
            p.chmod(mode)