# stdglue - canned prolog and epilog functions for the remappable builtin codes (T,M6,M61,S,F)
#
# we dont use argspec to avoid the generic error message of the argspec prolog and give more
# concise ones here


# cycle_prolog,cycle_epilog: generic code-independent support glue for oword sub cycles
#
# these are provided as starting point - for more concise error message you would better
# write a prolog specific for the code
#
# Usage:
#REMAP=G84.3  modalgroup=1 argspec=xyzqp prolog=cycle_prolog ngc=g843 epilog=cycle_epilog


import emccanon 
from interpreter import *
throw_exceptions = 1

# REMAP=S   prolog=setspeed_prolog  ngc=setspeed epilog=setspeed_epilog
# exposed parameter: #<speed>

def setspeed_prolog(self,**words):
    try:
        c = self.blocks[self.remap_level]
        if not c.s_flag:
            self.set_errormsg("S requires a value") 
            return INTERP_ERROR
        self.params["speed"] = c.s_number
    except Exception,e:
        self.set_errormsg("S/setspeed_prolog: %s)" % (e))
        return INTERP_ERROR
    return INTERP_OK

def setspeed_epilog(self,**words):
    try:
        if not self.value_returned:
            r = self.blocks[self.remap_level].executing_remap
            self.set_errormsg("the %s remap procedure %s did not return a value"
                             % (r.name,r.remap_ngc if r.remap_ngc else r.remap_py))
            return INTERP_ERROR
        if self.return_value < -TOLERANCE_EQUAL: # 'less than 0 within interp's precision'
            self.set_errormsg("S: remap procedure returned %f" % (self.return_value)) 
            return INTERP_ERROR
        if self.blocks[self.remap_level].builtin_used:
            pass
            #print "---------- S builtin recursion, nothing to do"
        else:
            self.speed = self.params["speed"]
            emccanon.enqueue_SET_SPINDLE_SPEED(self.speed)
        return INTERP_OK
    except Exception,e:
        self.set_errormsg("S/setspeed_epilog: %s)" % (e))
        return INTERP_ERROR
    return INTERP_OK    

# REMAP=F   prolog=setfeed_prolog  ngc=setfeed epilog=setfeed_epilog
# exposed parameter: #<feed>

def setfeed_prolog(self,**words):
    try:
        c = self.blocks[self.remap_level]
        if not c.f_flag:
            self.set_errormsg("F requires a value") 
            return INTERP_ERROR
        self.params["feed"] = c.f_number
    except Exception,e:
        self.set_errormsg("F/setfeed_prolog: %s)" % (e))
        return INTERP_ERROR
    return INTERP_OK    

def setfeed_epilog(self,**words):
    try:
        if not self.value_returned:
            r = self.blocks[self.remap_level].executing_remap
            self.set_errormsg("the %s remap procedure %s did not return a value"
                             % (r.name,r.remap_ngc if r.remap_ngc else r.remap_py))
            return INTERP_ERROR
        if self.blocks[self.remap_level].builtin_used:
            pass
            #print "---------- F builtin recursion, nothing to do"
        else:
            self.feed_rate = self.params["feed"]
            emccanon.enqueue_SET_FEED_RATE(self.feed_rate)
        return INTERP_OK
    except Exception,e:
        self.set_errormsg("F/setfeed_epilog: %s)" % (e))
        return INTERP_ERROR
    return INTERP_OK    


# REMAP=T   prolog=prepare_prolog ngc=prepare epilog=prepare_epilog
# exposed parameters: #<tool> #<pocket>

def prepare_prolog(self,**words):
    try:
        cblock = self.blocks[self.remap_level]
        if not cblock.t_flag:
            self.set_errormsg("T requires a tool number")
            return INTERP_ERROR
        tool  = cblock.t_number
        if tool:
            (status, pocket) = self.find_tool_pocket(tool)
            if status != INTERP_OK:
                self.set_errormsg("T%d: pocket not found" % (tool))
                return status
        else:
            pocket = -1 # this is a T0 - tool unload
        self.params["tool"] = tool
        self.params["pocket"] = pocket
        return INTERP_OK
    except Exception, e:
        self.set_errormsg("T%d/prepare_prolog: %s" % (int(words['t']), e))
        return INTERP_ERROR

def prepare_epilog(self, **words):
    try:
        if not self.value_returned:
            r = self.blocks[self.remap_level].executing_remap
            self.set_errormsg("the %s remap procedure %s did not return a value"
                             % (r.name,r.remap_ngc if r.remap_ngc else r.remap_py))
            return INTERP_ERROR
        if self.blocks[self.remap_level].builtin_used:
            #print "---------- T builtin recursion, nothing to do"
            return INTERP_OK
        else:
            if self.return_value > 0:
                self.selected_tool = int(self.params["tool"])
                self.selected_pocket = int(self.params["pocket"])
                emccanon.SELECT_POCKET(self.selected_pocket, self.selected_tool)
                return INTERP_OK
            else:
                self.set_errormsg("T%d: aborted (return code %.1f)" % (int(self.params["tool"]),self.return_value))
                return INTERP_ERROR
    except Exception, e:
        self.set_errormsg("T%d/prepare_epilog: %s" % (tool,e))
        return INTERP_ERROR       

# REMAP=M6  modalgroup=6 prolog=change_prolog ngc=change epilog=change_epilog
# exposed parameters:
#    #<tool_in_spindle>
#    #<selected_tool>
#    #<current_pocket>
#    #<selected_pocket>

def change_prolog(self, **words):
    try:
        # this is relevant only when using iocontrol-v2.
        if self.params[5600] > 0.0:
            if self.params[5601] < 0.0:
                self.set_errormsg("Toolchanger hard fault %d" % (int(self.params[5601])))
                return INTERP_ERROR
            print "change_prolog: Toolchanger soft fault %d" % int(self.params[5601])
            
	if self.selected_pocket < 0:
            self.set_errormsg("M6: no tool prepared")
            return INTERP_ERROR
	if self.cutter_comp_side:
            self.set_errormsg("Cannot change tools with cutter radius compensation on")
            return INTERP_ERROR
	self.params["tool_in_spindle"] = self.current_tool
	self.params["selected_tool"] = self.selected_tool
	self.params["current_pocket"] = self.current_pocket # this is probably nonsense
        self.params["selected_pocket"] = self.selected_pocket
        return INTERP_OK
    except Exception, e:
        self.set_errormsg("M6/change_prolog: %s" % (e))
        return INTERP_ERROR
    
def change_epilog(self, **words):
    try:
        if not self.value_returned:
            r = self.blocks[self.remap_level].executing_remap
            self.set_errormsg("the %s remap procedure %s did not return a value"
                             % (r.name,r.remap_ngc if r.remap_ngc else r.remap_py))
            return INTERP_ERROR
        # this is relevant only when using iocontrol-v2.
        if self.params[5600] > 0.0:
            if self.params[5601] < 0.0:
                self.set_errormsg("Toolchanger hard fault %d" % (int(self.params[5601])))
                return INTERP_ERROR
            print "change_epilog: Toolchanger soft fault %d" % int(self.params[5601])

        if self.blocks[self.remap_level].builtin_used:
            #print "---------- M6 builtin recursion, nothing to do"
            return INTERP_OK
        else:
            if self.return_value > 0.0:
                # commit change
                self.selected_pocket =  int(self.params["selected_pocket"])
                emccanon.CHANGE_TOOL(self.selected_pocket)
                self.current_pocket = self.selected_pocket
                self.selected_pocket = -1
                self.selected_tool = -1
                # cause a sync()
                self.set_tool_parameters()
                self.toolchange_flag = True
                return INTERP_EXECUTE_FINISH
            else:
                self.set_errormsg("M6 aborted (return code %.1f)" % (self.return_value))
                return INTERP_ERROR
    except Exception, e:
        self.set_errormsg("M6/change_epilog: %s" % (e))
        return INTERP_ERROR

# REMAP=M61  modalgroup=6 prolog=settool_prolog ngc=settool epilog=settool_epilog
# exposed parameters: #<tool> #<pocket>

def settool_prolog(self,**words):
    try:
        c = self.blocks[self.remap_level]
        if not c.q_flag:
            self.set_errormsg("M61 requires a Q parameter") 
            return INTERP_ERROR
        tool = int(c.q_number)
        if tool < -TOLERANCE_EQUAL: # 'less than 0 within interp's precision'
            self.set_errormsg("M61: Q value < 0") 
            return INTERP_ERROR
        (status,pocket) = self.find_tool_pocket(tool)
        if status != INTERP_OK:
            self.set_errormsg("M61 failed: requested tool %d not in table" % (tool))
            return status
        self.params["tool"] = tool
        self.params["pocket"] = pocket
        return INTERP_OK
    except Exception,e:
        self.set_errormsg("M61/settool_prolog: %s)" % (e))
        return INTERP_ERROR

def settool_epilog(self,**words):
    try:
        if not self.value_returned:
            r = self.blocks[self.remap_level].executing_remap
            self.set_errormsg("the %s remap procedure %s did not return a value"
                             % (r.name,r.remap_ngc if r.remap_ngc else r.remap_py))
            return INTERP_ERROR

        if self.blocks[self.remap_level].builtin_used:
            #print "---------- M61 builtin recursion, nothing to do"
            return INTERP_OK
        else:
            if self.return_value > 0.0:
                self.current_tool = int(self.params["tool"])
                self.current_pocket = int(self.params["pocket"])
                emccanon.CHANGE_TOOL_NUMBER(self.current_pocket)
                # cause a sync()
                self.tool_change_flag = True
                self.set_tool_parameters()
            else:
                self.set_errormsg("M61 aborted (return code %.1f)" % (self.return_value))
                return INTERP_ERROR
    except Exception,e:
        self.set_errormsg("M61/settool_epilog: %s)" % (e))
        return INTERP_ERROR

# educational alternative: M61 remapped to an all-Python handler
# demo - this really does the same thing as the builtin (non-remapped) M61
#
# REMAP=M61 modalgroup=6 python=set_tool_number

def set_tool_number(self, **words):
    try:
        c = self.blocks[self.remap_level]
        if c.q_flag:
            toolno = int(c.q_number)
        else:
            self.set_errormsg("M61 requires a Q parameter")
            return status 
	(status,pocket) = self.find_tool_pocket(toolno)
	if status != INTERP_OK:
            self.set_errormsg("M61 failed: requested tool %d not in table" % (toolno))
            return status
	if words['q'] > -TOLERANCE_EQUAL: # 'greater equal 0 within interp's precision'
            self.current_pocket = pocket
            self.current_tool = toolno
            emccanon.CHANGE_TOOL_NUMBER(pocket)
            # cause a sync()
            self.tool_change_flag = True
            self.set_tool_parameters()
            return INTERP_OK
	else:
            self.set_errormsg("M61 failed: Q=%4" % (toolno))
            return INTERP_ERROR
    except Exception, e:
        self.set_errormsg("M61/set_tool_number: %s" % (e))
        return INTERP_ERROR


_uvw = ("u","v","w","a","b","c")
_xyz = ("x","y","z","a","b","c")
# given a plane, return  sticky words, incompatible axis words and plane name
# sticky[0] is also the movement axis
_compat = {
    emccanon.CANON_PLANE_XY : (("z","r"),_uvw,"XY"),
    emccanon.CANON_PLANE_YZ : (("x","r"),_uvw,"YZ"),
    emccanon.CANON_PLANE_XZ : (("y","r"),_uvw,"XZ"),
    emccanon.CANON_PLANE_UV : (("w","r"),_xyz,"UV"),
    emccanon.CANON_PLANE_VW : (("u","r"),_xyz,"VW"),
    emccanon.CANON_PLANE_UW : (("v","r"),_xyz,"UW")}           

# extract and pass parameters from current block, merged with extra paramters on a continuation line
# keep tjose parameters across invocations
# export the parameters into the oword procedure
def cycle_prolog(self,**words):
    # self.sticky_params is assumed to have been initialized by the
    # init_stgdlue() method below
    global _compat
    try:    
        # determine whether this is the first or a subsequent call
        c = self.blocks[self.remap_level]
        r = c.executing_remap
        if c.g_modes[1] == r.motion_code:
            # first call - clear the sticky dict
            self.sticky_params[r.name] = dict()

        self.params["motion_code"] = c.g_modes[1]
        
        (sw,incompat,plane_name) =_compat[self.plane]
        for (word,value) in words.items():
            # inject current parameters
            self.params[word] = value
            # record sticky words
            if word in sw:
                if self.debugmask & 0x00080000: print "%s: record sticky %s = %.4f" % (r.name,word,value)
                self.sticky_params[r.name][word] = value
            if word in incompat:
                return "%s: Cannot put a %s in a canned cycle in the %s plane" % (r.name, word.upper(), plane_name)

        # inject sticky parameters which were not in words:
        for (key,value) in self.sticky_params[r.name].items():
            if not key in words:
                if self.debugmask & 0x00080000: print "%s: inject sticky %s = %.4f" % (r.name,key,value)
                self.params[key] = value

        if not "r" in self.sticky_params[r.name]:
            return "%s: cycle requires R word" % (r.name)
        else:
            if self.sticky_params[r.name] <= 0.0:
                return "%s: R word must be > 0 if used (%.4f)" % (r.name, words["r"])

        if "l" in words:
            # checked in interpreter during block parsing
            # if l <= 0 or l not near an int
            self.params["l"] = words["l"]
            
        if "p" in words:
            p = words["p"]
            if p < 0.0:
                return "%s: P word must be >= 0 if used (%.4f)" % (r.name, p)
            self.params["p"] = p

        if self.feed_rate == 0.0:
            return "%s: feed rate must be > 0" % (r.name)
        if self.feed_mode == INVERSE_TIME:
            return "%s: Cannot use inverse time feed with canned cycles" % (r.name)
        if self.cutter_comp_side:
            return "%s: Cannot use canned cycles with cutter compensation on" % (r.name)
        return INTERP_OK
    
    except Exception, e:
        raise
        return "cycle_prolog failed: %s" % (e)

# make sure the next line has the same motion code, unless overriden by a
# new G code
def cycle_epilog(self,**words):
    try:
        c = self.blocks[self.remap_level]
        self.motion_mode = c.executing_remap.motion_code # retain the current motion mode
        return INTERP_OK
    except Exception, e:
        return "cycle_epilog failed: %s" % (e)


# this should be called from TOPLEVEL __init__()
def init_stdglue(self):
    self.sticky_params = dict()
