#!/usr/bin/env python
# Load an AlsaModularSynth patch file into Ingen
# Copyright 2012 David Robillard <http://drobilla.net>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

import ingen
import rdflib
import sys

ams_prefix  = 'http://github.com/blablack/ams-lv2/'
fomp_prefix = 'http://drobilla.net/plugins/fomp/'

class World:
    def __init__(self, server_uri):
        self.server_uri = server_uri
        self.server = ingen.Remote(server_uri)
        self.pending_arcs = []
        self.server.get('/')

    def mod_sym(self, mod_id):
        return 'mod%d' % int(mod_id)

    def add_block(self, mod_id, plugin_uri, x, y):
        self.server.put('/' + self.mod_sym(mod_id),
                        ('\t\ta ingen:Block ;\n'
                         + 'ingen:prototype <%s> ;\n' % plugin_uri
                         + 'ingen:canvasX %f ;\n' % x
                         + 'ingen:canvasY %f' % y).replace('\n', '\n\t\t'))

    def add_arc(self,
                head_port_id, tail_port_id,
                head_mod_id, tail_mod_id,
                jack_color, cable_color):
        self.pending_arcs += [(head_port_id, tail_port_id,
                              head_mod_id, tail_mod_id,
                              jack_color, cable_color)]

    def get_ports(self, mod_uri, port_type):
        ports = []
        for i in self.server.model.triples([None, ingen.NS.rdf.type, port_type]):
            if str(i[0]).startswith(mod_uri + '/'):
                if not [i[0], ingen.NS.rdf.type, ingen.NS.lv2.ControlPort] in self.server.model:
                    # Unfortunately ingen.NS.lv2.index is a method
                    index = self.server.model.value(i[0], ingen.NS.lv2['index'], None)
                    ports += [[int(index), i[0]]]
        return ports
        
    def input_by_id(self, mod_uri, port_id):
        # Get all input ports on this module sorted by index
        inputs = sorted(self.get_ports(mod_uri, ingen.NS.lv2.InputPort))

        # Return the port_id'th port in the list
        index = 0
        for i in inputs:
            if index == int(port_id):
                return i[1]
            index += 1

        return None

    def output_by_id(self, mod_uri, port_id):
        # Get all output ports on this module sorted by index
        outputs = sorted(self.get_ports(mod_uri, ingen.NS.lv2.OutputPort))

        # Return the port_id'th port in the list
        index = 0
        for i in outputs:
            if index == int(port_id):
                return i[1]
            index += 1

        return None
        
    def create_arcs(self):
        for (head_port_id, tail_port_id,
             head_mod_id, tail_mod_id,
             jack_color, cable_color) in self.pending_arcs:
            print('%s:%s => %s:%s' % (tail_mod_id, tail_port_id, head_mod_id, head_port_id))
            try:
                tail_mod = rdflib.URIRef(self.server.server_base + self.mod_sym(tail_mod_id))
                head_mod = rdflib.URIRef(self.server.server_base + self.mod_sym(head_mod_id))
                tail     = self.output_by_id(tail_mod, tail_port_id)
                head     = self.input_by_id(head_mod, head_port_id)
                if tail and head:
                    self.server.connect(self.server.uri_to_path(tail),
                                        self.server.uri_to_path(head))
            except:
                pass

# Static enumeration of special module type IDs
class Special:
    CUSTOM      = 0
    LADSPA      = 6
    SCMCV       = 30
    SCQUANTIZER = 30
    
# Module types list, indexed by numeric ID in file
# Except where otherwise commented, these correspond to internal modules,
# and the string is the suffix of the corresponding AMS LV2 plugin URI
module_types = [
    "custom", # 0 = custom (unsupported)
    "vco",
    "vca",
    "lfo",
    "delay",
    "ringmod",
    "ladspa", # 6 = LADSPA plugin
    "pcmout",
    "mix",
    "vcf",
    "mcv",
    "env",
    "seq",
    "inv",
    "noise",
    "slew",
    "quantizer",
    "pcmin",
    "cvs", 
    "sh",
    "vcorgan",
    "dynamicwaves",
    "advenv",
    "wavout", 
    "scope",
    "spectrum",
    "vcswitch",
    "jackin",
    "jackout",
    "midiout",
    "scmcv", # Scala module (different line format)
    "scquantizer", # Scala module (different line format)
    "stereomix",
    "conv", 
    "vcenv",
    "advmcv",
    "function",
    "vcpanning",
    "vcenv2",
    "vcdoubledecay",
    "vquant",
    "amp",
    "ad",
    "mphlfo",
    "noise2",
    "vco2"
]

class Module:
    def __init__(self, num, plugin_uri, properties={}):
        self.num        = num
        self.plugin_uri = plugin_uri
        self.properties = properties
        self.ports      = []

class Patch:
    def __init__(self):
        self.modules = []

def ladspa_module(world, mod_id, x, y, poly, lib, label):
    lv2_uri = ''
    # Kludge LADSPA library and label to Fomp LV2 URIs where applicable
    if lib == 'blvco':
        lv2_uri = fomp_prefix + label.lower().replace('-', '_')
    elif lib == 'mvclpf24' or lib == 'mvchpf24':
        lv2_uri = fomp_prefix + label.lower().replace('-', '')
    elif lib == 'cs_chorus' or lib == 'cs_phaser':
        lv2_uri = fomp_prefix + 'cs_' + label.lower().replace('+', '_')

    if lv2_uri:
        world.add_block(mod_id, lv2_uri, x, y)
    else:
        print('MOD %3d LADSPA %s %s %s' % (mod_id, poly, lib, label))

def scala_module(world, mod_id, scala_name):
    #print('MOD %3d SCALA %s' % (d, scala_name))
    pass

def standard_module(world, mod_id, x, y, name, arg):
    if name == 'vca':
        if arg > 0:
            name += 'exp'
        else:
            name += 'lin'
    elif name == 'mix':
        name += 'er_%dch' % int(arg)
                
    lv2_uri = ams_prefix + name
    world.add_block(mod_id, lv2_uri, x, y)

def float_control(world, mod_id, port_index, value,
                  logarithmic, minimum, maximum, midi_sign):
    #print('FLOAT CONTROL %s:%s = %s' % (mod_id, port_index, value))
    pass

def control(world, mod_id, port_index, value, midi_sign):
    #print('CONTROL %s:%s = %s' % (mod_id, port_index, value))
    pass

if len(sys.argv) != 2 and len(sys.argv) != 3:
    sys.stderr.write('Usage: %s AMS_PATCH_FILE [SERVER_URI]\n')
    sys.exit(1)

in_path    = sys.argv[1]
server_uri = 'unix:///tmp/ingen.sock'
if len(sys.argv) == 3:
    server_uri = sys.argv[2]

world   = World(server_uri)
in_file = open(in_path, 'r')

in_comment = False
for l in in_file:
    try:
        expr = l.split()
        if not expr:
            continue
        elif expr[0] == '#PARA#':
            in_comment = True
        elif in_comment and expr[0] == '#ARAP#':
            in_comment = False
        elif expr[0] == 'Module':
            mod_type = int(expr[1])
            mod_id   = int(expr[2])
            mod_x    = int(expr[3])
            mod_y    = int(expr[4])
            if mod_type > len(module_types):
                sys.stderr.write('warning: unknown module type %d\n', mod_type)
            elif mod_type == Special.CUSTOM:
                sys.stderr.write('warning: custom module %d unsupported\n' % mod_id)
            if mod_type == Special.LADSPA:
                ladspa_module(world, mod_id, mod_x, mod_y, int(expr[5]), expr[6], expr[7])
            elif mod_type == Special.SCMCV or mod_type == Special.SCQUANTIZER:
                scale_module(world, mod_id, module_types[mod_type], expr[5])
                scala_name = expr[5]
            else:
                standard_module(world, mod_id, mod_x, mod_y, module_types[mod_type], expr[5])
        elif expr[0] == 'ColorP':
            world.add_arc(expr[1], expr[2], expr[3], expr[4],
                          (expr[5], expr[6], expr[7]),
                          (expr[8], expr[9], expr[10]))
        elif expr[0] == 'FSlider':
            float_control(world, mod_id,
                          expr[2],  expr[3],  expr[4],  expr[5],  expr[6],  expr[7])
        elif expr[0] == 'ISlider' or expr[0] == 'LSlider':
            control(world, mod_id, expr[2],  expr[3],  expr[4])
        #else:
        #    sys.stderr.write('warning: unsupported form %s\n' % expr[0])
    except ingen.Error:
        e = sys.exc_info()[1]
        sys.stderr.write('ingen error: %s\n' % e.message)

world.create_arcs()

#print(world.server.model.serialize(format='n3'))

in_file.close()