"""
    SCLang.py
"""

from ..Code import WarningMsg
from ..Settings import SC3_PLUGINS

from copy import copy
import StringIO
import os

def format_args(args=[], kwargs={}, delim=': '):
    return ", ".join([str(a) for a in args] + ["%s%s%s" % (key, delim, value) for key, value in kwargs.items()])

class cls:
    def __init__(self, name, **kwargs):
        self.name = name
        self.ref  = kwargs.get("ref", "")
    def __str__(self):
        return str(self.name)
    def __repr__(self):
        return str(self.name)
    def __call__(self):
        return instance("{}({}{})".format(self.name, self.ref, format_args(args, kwargs)))
    def ar(self, *args, **kwargs):
        return instance("{}.ar({}{})".format(self.name, self.ref, format_args(args, kwargs)))
    def kr(self, *args, **kwargs):
        return instance("{}.kr({}{})".format(self.name, self.ref, format_args(args, kwargs)))
    def ir(self, *args, **kwargs):
        return instance("{}.ir({}{})".format(self.name, self.ref, format_args(args, kwargs)))

class instance:
    defaults = {}
    shortarg = {}
    def __init__(self, string):
        self.value = str(string)
    def __repr__(self):
        return str(self.value)
    def __str__(self):
        return str(self.value)    
    def __add__(self, other):
        return instance("(%s)" % (str(self) + " + " + str(other)))
    def __sub__(self, other):
        return instance("(%s)" % (str(self) + " - " + str(other)))
    def __mul__(self, other):
        return instance("(%s)" % (str(self) + " * " + str(other)))
    def __div__(self, other):
        return instance("(%s)" % (str(self) + " / " + str(other)))
    def __pow__(self, other):
        return instance("(%s)" % (str(self) + " ** " + str(other)))
    def __xor__(self, other):
        return instance("(%s)" % (str(self) + " ** " + str(other)))
    def __truediv__(self, other):
        return self.__div__(other)
    def __radd__(self, other):
        return instance("(%s)" % (str(other) + " + " + str(self)))
    def __rsub__(self, other):
        return instance("(%s)" % (str(other) + " - " + str(self)))
    def __rmul__(self, other):
        return instance("(%s)" % (str(other) + " * " + str(self)))
    def __rdiv__(self, other):
        return instance("(%s)" % (str(other) + " / " + str(self)))
    def __rpow__(self, other):
        return instance("(%s)" % (str(other) + " ** " + str(self)))
    def __rxor__(self, other):
        return instance("(%s)" % (str(other) + " ** " + str(self)))
    def __rtruediv__(self, other):
        return self.__rdiv__(other)
    def __mod__(self, other):    
        return instance(str(self.value) % str(other)) if "%" in self.value else self
    def __coerce__(self, other):
        try:
            self = instance(str(self))
            other = instance(str(other))
            return (self, other)
        except:
            return

    def __getattr__(self, name, *args, **kwargs):
        return self.custom('.' + name, *args, **kwargs)

    def string(self):
        return str(self.value) + "{}"

    def custom(self, name):
        return self.__class__(self.string().format(name))
    
    def __call__(self, *args, **kwargs):

        for arg in set(self.defaults.keys() + self.shortarg.keys()):
            
            if arg in self.shortarg:

                if self.shortarg[arg] in kwargs:

                    kwargs[arg] = kwargs.get(self.shortarg[arg], self.default[arg])

                    del kwargs[self.shortarg[arg]]

                    continue

            if arg in self.defaults:

                kwargs[arg] = kwargs.get(arg, self.defaults[arg])

        value = self.string().format("({})".format(format_args(args, kwargs)))
        
        return self.__class__(value)
        

# UGens

SinOsc    = cls("SinOsc")
SinOscFB  = cls("SinOscFB")
Saw       = cls("Saw")
LFSaw     = cls("LFSaw")
VarSaw    = cls("VarSaw")
LFTri     = cls("LFTri")
LFPar     = cls("LFPar")
PlayBuf   = cls("PlayBuf")
LFNoise0  = cls("LFNoise0")
LFNoise1  = cls("LFNoise1")
LFNoise2  = cls("LFNoise2")
Gendy1    = cls("Gendy1")
Gendy2    = cls("Gendy2")
Gendy3    = cls("Gendy3")
Gendy4    = cls("Gendy4")
Gendy5    = cls("Gendy5")
Formant   = cls("Formant")
Pulse     = cls("Pulse")
LFPulse   = cls("LFPulse")
PMOsc     = cls("PMOsc")
Crackle   = cls("Crackle")
LFCub     = cls("LFCub")
PinkNoise = cls("PinkNoise")
Impulse   = cls("Impulse")
Blip      = cls("Blip")
Klank     = cls("Klank", ref="`")

# Other

Out      = cls("Out")
Vibrato  = cls("Vibrato")
Line     = cls("Line")
XLine    = cls("XLine")
FreeVerb = cls("FreeVerb")
GVerb    = cls("GVerb")
Pan2     = cls("Pan2")
LPF      = cls("LPF")
BPF      = cls("BPF")
HPF      = cls("HPF")
DelayC   = cls("DelayC")
DelayN   = cls("DelayN")
DelayL   = cls("DelayL")
CombN    = cls("CombN")
CombL    = cls("CombL")
CombC    = cls("CombC")
Crackle  = cls("Crackle")
Limiter  = cls("Limiter")
Ringz    = cls("Ringz")

ClipNoise    = cls("ClipNoise")
BufRateScale = cls("BufRateScale")
BufChannels  = cls("BufChannels")
BufFrames    = cls("BufFrames")
BufDur       = cls("BufDur")

# sc3 Plugins

BufGrain  = cls("BufGrain")
Decimator = cls("Decimator")
CrossoverDistortion = cls("CrossoverDistortion")

# Array manipulation emulator functions

stutter = lambda array, n: [item for item in array for i in range(n)]
dup = lambda x: [x, x]
