#!/usr/bin/env python3
# PabstMirror
# Checks all strings are defined, run with -u to return all unused strings

import fnmatch
import os
import re
import sys

def getDefinedStrings(filepath):
    # print("getDefinedStrings {0}".format(filepath))
    with open(filepath, 'r', encoding="latin-1") as file:
        content = file.read()
        srch = re.compile('Key ID\=\"(STR_ACE_[_a-zA-Z0-9]*)"', re.IGNORECASE)
        modStrings = srch.findall(content)
    modStrings = [s.lower() for s in modStrings]
    return modStrings

def getStringUsage(filepath):
    selfmodule = (re.search('(addons|optionals)[\W]*([_a-zA-Z0-9]*)', filepath)).group(2)
    # print("Checking {0} from {1}".format(filepath,selfmodule))
    fileStrings = []

    with open(filepath, 'r') as file:
        content = file.read()

        srch = re.compile('(STR_ACE_[_a-zA-Z0-9]*)', re.IGNORECASE)
        fileStrings = srch.findall(content)

        srch = re.compile('[^E][CL]STRING\(([_a-zA-Z0-9]*)\)', re.IGNORECASE)
        modStrings = srch.findall(content)
        for localString in modStrings:
            fileStrings.append("STR_ACE_{0}_{1}".format(selfmodule, localString))

        srch = re.compile('E[CL]STRING\(([_a-zA-Z0-9]*),([_a-zA-Z0-9]*)\)')
        exStrings = srch.findall(content)
        for (exModule, exString) in exStrings:
            fileStrings.append("STR_ACE_{0}_{1}".format(exModule, exString))

        srch = re.compile('IGNORE_STRING_WARNING\([\'"]*([_a-zA-Z0-9]*)[\'"]*\)')
        ignoreWarnings = srch.findall(content)

    fileStrings = [s.lower() for s in fileStrings]
    return [s for s in fileStrings if s not in (i.lower() for i in ignoreWarnings)]

def main(argv):
    print("### check_strings.py {} ###".format(argv))
    sqf_list = []
    xml_list = []

    allDefinedStrings = []
    allUsedStrings = []

    for folder in ['addons', 'optionals']:
        # Allow running from root directory as well as from inside the tools directory
        rootDir = "../" + folder
        if (os.path.exists(folder)):
            rootDir = folder

        for root, dirnames, filenames in os.walk(rootDir):
          for filename in fnmatch.filter(filenames, '*.sqf'):
            sqf_list.append(os.path.join(root, filename))
          for filename in fnmatch.filter(filenames, '*.cpp'):
            sqf_list.append(os.path.join(root, filename))
          for filename in fnmatch.filter(filenames, '*.hpp'):
            sqf_list.append(os.path.join(root, filename))
          for filename in fnmatch.filter(filenames, '*.h'):
            sqf_list.append(os.path.join(root, filename))

          for filename in fnmatch.filter(filenames, '*.xml'):
            xml_list.append(os.path.join(root, filename))

    for filename in xml_list:
        allDefinedStrings = allDefinedStrings + getDefinedStrings(filename)
    for filename in sqf_list:
        allUsedStrings = allUsedStrings + getStringUsage(filename)

    allDefinedStrings = list(sorted(set(allDefinedStrings)))
    allUsedStrings = list(sorted(set(allUsedStrings)))

    print("-----------")
    countUnusedStrings = 0
    countUndefinedStrings = 0
    for s in allDefinedStrings:
        if (not (s in allUsedStrings)):
            countUnusedStrings = countUnusedStrings + 1;
            if ("-u" in argv):
                print("String {} defined but not used".format(s))
    print("-----------")
    for s in allUsedStrings:
        if (not (s in allDefinedStrings)):
            print("String {} not defined".format(s))
            countUndefinedStrings = countUndefinedStrings + 1;
    print("-----------")

    print("Defined Strings:{0} Used Strings:{1}".format(len(allDefinedStrings),len(allUsedStrings)))
    print("Unused Strings:{0} Undefined Strings:{1}".format(countUnusedStrings,countUndefinedStrings))

    return countUndefinedStrings

if __name__ == "__main__":
    main(sys.argv)