#!/usr/bin/env python2.7

from optparse import OptionParser
import os
import sys
import glob
import symtable
import shutil
import json

def bowerFileName():
    file = open(".bowerrc")
    data = json.load(file)
    fileName = data["json"]
    file.close()
    return fileName

def bowerProperty(name):
    file = open(bowerFileName())
    data = json.load(file)
    value = data[name]
    file.close()
    return value

# Symbolic constants for the project structure.
TEST_DIR        = 'test'

if sys.platform == "win32":
    nul = "nul"
    crlfprog = os.path.join(os.path.split(sys.executable)[0], "Tools/Scripts/crlf.py")
elif sys.platform == "darwin":
    nul = "/dev/null"
    crlfprog = None
elif sys.platform == "linux2":
    nul = "/dev/null"
    crlfprog = None
else:
    # You're on your own...
    nul = "/dev/null"
    crlfprog = None

if os.environ.get("CI",False):
    nul = "/dev/null"

def regenasttests(togen="{0}/run/*.py".format(TEST_DIR)):
    """regenerate the ast test files by running our helper script via real python"""
    for f in glob.glob(togen):
        transname = f.replace(".py", ".trans")
        os.system("python {0}/astppdump.py {1} > {2}".format(TEST_DIR, f, transname))
        forcename = f.replace(".py", ".trans.force")
        if os.path.exists(forcename):
            shutil.copy(forcename, transname)
        if crlfprog:
            os.system("python {0} {1}".format(crlfprog, transname))

def regenruntests(togen="{0}/run/*.py".format(TEST_DIR)):
    """regenerate the test data by running the tests on real python"""
    for f in glob.glob(togen):
        os.system("python {0} > {1}.real 2>&1".format(f, f))
        forcename = f + ".real.force"
        if os.path.exists(forcename):
            shutil.copy(forcename, "%s.real" % f)
        if crlfprog:
            os.system("python %s %s.real" % (crlfprog, f))
    for f in glob.glob("{0}/interactive/*.py".format(TEST_DIR)):
        p = Popen("python -i > %s.real 2>%s" % (f, nul), shell=True, stdin=PIPE)
        p.communicate(open(f).read() + "\004")
        forcename = f + ".real.force"
        if os.path.exists(forcename):
            shutil.copy(forcename, "%s.real" % f)
        if crlfprog:
            os.system("python %s %s.real" % (crlfprog, f))

def symtabdump(fn):
    if not os.path.exists(fn):
        print "%s doesn't exist" % fn
        raise SystemExit()
    text = open(fn).read()
    mod = symtable.symtable(text, os.path.split(fn)[1], "exec")
    def getidents(obj, indent=""):
        ret = ""
        ret += """%sSym_type: %s
%sSym_name: %s
%sSym_lineno: %s
%sSym_nested: %s
%sSym_haschildren: %s
""" % (
        indent, obj.get_type(),
        indent, obj.get_name(),
        indent, obj.get_lineno(),
        indent, obj.is_nested(),
        indent, obj.has_children())
        if obj.get_type() == "function":
            ret += "%sFunc_params: %s\n%sFunc_locals: %s\n%sFunc_globals: %s\n%sFunc_frees: %s\n" % (
                    indent, sorted(obj.get_parameters()),
                    indent, sorted(obj.get_locals()),
                    indent, sorted(obj.get_globals()),
                    indent, sorted(obj.get_frees()))
        elif obj.get_type() == "class":
            ret += "%sClass_methods: %s\n" % (
                    indent, sorted(obj.get_methods()))
        ret += "%s-- Identifiers --\n" % indent
        for ident in sorted(obj.get_identifiers()):
            info = obj.lookup(ident)
            ret += "%sname: %s\n  %sis_referenced: %s\n  %sis_imported: %s\n  %sis_parameter: %s\n  %sis_global: %s\n  %sis_declared_global: %s\n  %sis_local: %s\n  %sis_free: %s\n  %sis_assigned: %s\n  %sis_namespace: %s\n  %snamespaces: [\n%s  %s]\n" % (
                    indent, info.get_name(),
                    indent, info.is_referenced(),
                    indent, info.is_imported(),
                    indent, info.is_parameter(),
                    indent, info.is_global(),
                    indent, info.is_declared_global(),
                    indent, info.is_local(),
                    indent, info.is_free(),
                    indent, info.is_assigned(),
                    indent, info.is_namespace(),
                    indent, '\n'.join([getidents(x, indent + "    ") for x in info.get_namespaces()]),
                    indent
                    )
        return ret
    return getidents(mod)

def regensymtabtests(togen="{0}/run/*.py".format(TEST_DIR)):
    """regenerate the test data by running the symtab dump via real python"""
    for fn in glob.glob(togen):
        outfn = "%s.symtab" % fn
        f = open(outfn, "wb")
        f.write(symtabdump(fn))
        f.close()

def vmwareregr(names):
    """todo; not working yet.

    run unit tests via vmware on a bunch of browsers"""

    xp = "/data/VMs/xpsp3/xpsp3.vmx"
    ubu = "/data/VMs/ubu910/ubu910.vmx"
    # apparently osx isn't very vmware-able. stupid.

    class Browser:
        def __init__(self, name, vmx, guestloc):
            self.name = name
            self.vmx = vmx
            self.guestloc = guestloc

    browsers = [
            Browser("ie7-win", xp, "C:\\Program Files\\Internet Explorer\\iexplore.exe"),
            Browser("ie8-win", xp, "C:\\Program Files\\Internet Explorer\\iexplore.exe"),
            Browser("chrome3-win", xp, "C:\\Documents and Settings\\Administrator\\Local Settings\\Application Data\\Google\\Chrome\\Application\\chrome.exe"),
            Browser("chrome4-win", xp, "C:\\Documents and Settings\\Administrator\\Local Settings\\Application Data\\Google\\Chrome\\Application\\chrome.exe"),
            Browser("ff3-win", xp, "C:\\Program Files\\Mozilla Firefox\\firefox.exe"),
            Browser("ff35-win", xp, "C:\\Program Files\\Mozilla Firefox\\firefox.exe"),
            #Browser("safari3-win", xp,
            #Browser("safari4-win", xp,
            #"ff3-osx": osx,
            #"ff35-osx": osx,
            #"safari3-osx": osx,
            #"safari4-osx": osx,
            #"ff3-ubu": ubu,
            #"chromed-ubu": ubu,
            ]

def usageString(program):
    return '''

    {program} <command> [<options>] [script.py]

Commands:

    regenasttests    Regen abstract symbol table tests
    regenruntests    Regenerate runtime unit tests
    regensymtabtests Regenerate symbol table tests
    regentests       Regenerate all of the above

    help             Display help information about Skulpt

Options:

    -q, --quiet        Only output important information
    -s, --silent       Do not output anything, besides errors
    -v, --verbose      Make output more verbose [default]
    --version          Returns the version string in Bower configuration file.
'''.format(program=program)

def main():
    parser = OptionParser(usageString("%prog"), version="%prog {0}".format(bowerProperty("version")))
    parser.add_option("-q", "--quiet",        action="store_false", dest="verbose")
    parser.add_option("-s", "--silent",       action="store_true",  dest="silent",       default=False)
    parser.add_option("-d", "--disabletests", action="store_true", dest="disabletests", default=False)
    parser.add_option("-v", "--verbose",
        action="store_true",
        dest="verbose",
        default=False,
        help="Make output more verbose [default]")
    (options, args) = parser.parse_args()

    # This is rather aggressive. Do we really want it?
    if options.verbose:
        if sys.platform == 'win32':
            os.system("cls")
        else:
            os.system("clear")

    if len(sys.argv) < 2:
        cmd = "help"
    else:
        cmd = sys.argv[1]

    if cmd == "regentests":
        if len(sys.argv) > 2:
            togen = "{0}/run/".format(TEST_DIR) + sys.argv[2]
        else:
            togen = "{0}/run/*.py".format(TEST_DIR)
        print "generating tests for ", togen
        regensymtabtests(togen)
        regenasttests(togen)
        regenruntests(togen)
    elif cmd == "regensymtabtests":
        regensymtabtests()
    elif cmd == "vmwareregr":
        vmwareregr()
    elif cmd == "regenasttests":
        regenasttests()
    elif cmd == "regenruntests":
        regenruntests()
    else:
        print usageString(os.path.basename(sys.argv[0]))
        sys.exit(2)

if __name__ == "__main__":
    main()