#!/usr/bin/env bash

#

# Tool which tries to find outdated translations in the engine strings (*.txt) using hg blame.

# Note this is only a heuristic; the output might not be 100% accurate.

# Strings which this tool lists MIGHT be outdated, so you might want to re-translate them, if needed.

# Run this in the tools/ directory.

#

# SYNTAX:

#

# ./find_outdated_engine_translations.sh <LANGUAGE>

#

# <LANGUAGE>: Language code of the language to check

#

shopt -s checkwinsize 

cd ../share/hedgewars/Data/Locale

IGNORE_CASE_WHITESPACE=1;

if ((${#@}==2))

then

    IGNORE_CASE_WHITESPACE=$2;

fi;

BLAMELANG=$1;

if [ -z $BLAMELANG ]

then

    echo "No language specified.";

    exit;

fi;

BLAMELANGFILE="$BLAMELANG.txt";

TEMP_EN=$(mktemp);

TEMP_LANG=$(mktemp);

hg blame en.txt | grep -P "^\s*\d+:\s+0[013-6]:" > $TEMP_EN;

hg blame $BLAMELANGFILE | grep -P "^\s*\d+:\s+0[013-6]:" > $TEMP_LANG;

cat $TEMP_EN | while read f;

do

    REV=$(echo $f | sed 's/:.*//');

    CODE=$(echo $f | sed 's/^[0-9]\+:\s\+//;s/=.*//');

    OTHER=$(grep -P "^\s*\d+:\s+${CODE}" $TEMP_LANG);

    if (($?==0));

    then

        OTHER_REV=$(echo $OTHER | sed 's/:.*//');

        if (($REV>$OTHER_REV));

        then

            TEXT=$(echo $f | sed 's/^\s*[0-9]\+:\s*[0-9]\+:[0-9]\+=//');

            OLD_TEXT=$(hg grep --all -r "1:$OTHER_REV" "$CODE" en.txt | tail -n1 | sed 's/.*en.txt:[0-9]\+:[+-]:[0-9]\+:[0-9]\+=//;s/
//');

            COMPARE_TEXT=$TEXT;

            COMPARE_OLD_TEXT=$OLD_TEXT;

            if (($IGNORE_CASE_WHITESPACE==1));

            then

                COMPARE_TEXT=$(echo $TEXT | sed 's/\s*//g' | tr A-Z a-z);

                COMPARE_OLD_TEXT=$(echo $OLD_TEXT | sed 's/\s*//g' | tr A-Z a-z);

            fi;

            if [ "$COMPARE_TEXT" != "$COMPARE_OLD_TEXT" ];

            then

                if [ -z $COLUMNS ];

                then

                    printf '━%.0s' $(seq 74);

                    echo "";

                else

                    printf '━%.0s' $(seq $COLUMNS);

                fi;

                echo "$TEXT ← Current English";

                echo "$OLD_TEXT ← English at time of translation";

                echo "$(echo $OTHER | sed 's/^\s*[0-9]\+:\s*[0-9]\{2\}:[0-9]\{2\}=//') ← current translation";

            fi;

        fi;

    fi;

done

rm $TEMP_EN $TEMP_LANG