import re
import os.path
import subprocess
 
RPR_ShowConsoleMsg("BETA TEST ONLY! SOX massconvert util for Reaper by dan@remaincalm.org\n")
# NOTE: probably not compatible with multiple take items!
# USE AT OWN RISK!
# Usage: have SOX installed
# Select items. Run this script. SOX will be invoked on everything and 
# the resulting files will be added to Reaper session on new tracks.
# Code tries to be safe and not overwrite files etc but please use caution regardless!
 
try:
 
	sox = "C:\Program Files\sox\sox.exe"	
	preOpts = ["-V"]     #verbosity
	midOpts = ["-b","16"]	# bitdepth
	postOpts = ["rate","-m","44k"] # output rate, change -m to -h or -v for high/extreme quality
 
	# project num
	defaultProject = 0
	itemsToAdd = {} # hash of filename => position
 
	# count selected items
	numItems = RPR_CountSelectedMediaItems(defaultProject)
 
	# for each item
	for itemIdx in range(numItems):
 
		# get item        		# TODO: handle takes?
		mediaItem = RPR_GetSelectedMediaItem(defaultProject, itemIdx);
 
		# extract file info:
		rawData = ""
		maxLen = 16 * 1024 - 1
		result = RPR_GetSetItemState(mediaItem,"",maxLen)
		regExp = re.compile("SOURCE WAVE\\s*FILE\\s\"([^\\s\"]*)\"")
		rawData = str(result[2])
		matched = regExp.search(rawData)
		if(matched != None):
			# we found a file
			infile = str(matched.group(1))			
			outfile = infile + ".resampled.wav"
 
			RPR_ShowConsoleMsg("Attempting to process " + infile + "\n")
			if(os.path.exists(outfile) == 0):
				# invoke sox
				RPR_ShowConsoleMsg("Processing...\n")
				subprocess.call([sox] + preOpts + [infile] + midOpts + [outfile] + postOpts)
 
				# add to list of media items to add at end of process
				# (we do that there so our item selection doesn't get messed up)
				position = RPR_GetMediaItemInfo_Value(mediaItem, "D_POSITION")
				itemsToAdd[outfile] = position
			else:
				RPR_ShowConsoleMsg("Skipping item, output file already exists (can't overwrite)!\n")
		else:
			RPR_ShowConsoleMsg("Skipping item, no file source detected!\n")
 
	# now add all media items to their own track
	for itemFilename in itemsToAdd.keys():
		RPR_ShowConsoleMsg("Inserting " + itemFilename + " into project\n")
 
		# make new track
		RPR_InsertTrackAtIndex(0,0)
		newTrack = RPR_GetTrack(defaultProject, 0)
 
		# set cursor pos 
		itemPos = itemsToAdd[itemFilename]		
		RPR_SetEditCurPos2(defaultProject, itemPos, 1, 0)
 
		# select track and insert
		RPR_SetTrackSelected(newTrack,1)
		RPR_InsertMedia(itemFilename,0)
 
	# finished
	RPR_ShowConsoleMsg("Done!\n")
 
except Exception as inst:
	# handle errors
	RPR_ShowConsoleMsg(str(inst))