#!/bin/bash

set -e

update_linguas() {

    local DIR="$1"

    local LINGUAS_FILE="$DIR/LINGUAS"

    echo "update $LINGUAS_FILE"

    ls -1 "$DIR"/*.po | while read FILE; do

        basename -s .po "$FILE";

    done > "$LINGUAS_FILE"

}

firstword() {

    echo "$1"

}

read_linguas() {

    local FILE="$1"

    echo " - read $FILE"

    while read LINE; do

        local CODE="$(firstword $LINE)"

        if [ ! -z "$CODE" ]; then

            CODE_MAP[$CODE]="$CODE"

            NAME_MAP[$CODE]=""

            COMMENT_MAP[$CODE]=" <------- TODO: Set language name and remove this comment"

        else

            echo "$LINE" >> "$TMPFILE"

        fi

    done < "$FILE"

}

update_languages_inc() {

    local LANGUAGES_FILE="synfig-studio/src/languages.inc.c"

    echo "update LANGUAGES_FILE"

    local TMPFILE="$LANGUAGES_FILE.process"

    rm -f "$TMPFILE"

    declare -A CODE_MAP

    declare -A NAME_MAP

    declare -A COMMENT_MAP

    read_linguas "synfig-core/po/LINGUAS"

    read_linguas "synfig-studio/po/LINGUAS"

    echo " - read $LANGUAGES_FILE"

    while read LINE; do

        local COMMENT="$(echo "$LINE" | sed "s|//|#|" | cut -d \# -f 2- -s)"

        local SUBLINE="$(echo "$LINE" | sed "s|//|#|" | cut -d \# -f 1)"

        local CODE="$(echo "$SUBLINE" | cut -d \" -f 2)"

        local NAME="$(echo "$SUBLINE" | cut -d \" -f 4)"

        if [ ! -z "$CODE" ] || [ ! -z "$NAME" ]; then

            CODE_MAP[$CODE]="$CODE"

            NAME_MAP[$CODE]="$NAME"

            COMMENT_MAP[$CODE]="$COMMENT"

        else

            # write all unknown rows to beginning of file

            echo "$LINE" >> "$TMPFILE"

        fi

    done < "$LANGUAGES_FILE"

    # fit the columns to make beautifulest table in the world

    local CODE_LEN=0

    local NAME_LEN=0

    for i in ${!CODE_MAP[@]}; do

        if [ ${#CODE_MAP[$i]} -gt $CODE_LEN ]; then

            CODE_LEN=${#CODE_MAP[$i]}

        fi

        if [ ${#NAME_MAP[$i]} -gt $NAME_LEN ]; then

            NAME_LEN=${#NAME_MAP[$i]}

        fi

    done

    CODE_LEN=$((CODE_LEN+3))

    NAME_LEN=$((NAME_LEN+3))

    # sort

    SORTED=$(for i in ${!CODE_MAP[@]}; do echo $i; done | sort | while read l; do echo -n "$l "; done)

    # write languages

    NEW_LANGS=

    for i in $SORTED; do

        CODE=${CODE_MAP[$i]}

        NAME=${NAME_MAP[$i]}

        COMMENT=${COMMENT_MAP[$i]}

        if [ ! -z "$COMMENT" ]; then

            COMMENT=" // $COMMENT"

        fi

        if [ -z "$NAME" ]; then

            NEW_LANGS="$NEW_LANGS $CODE"

        fi

        printf "{ %-${CODE_LEN}s %-${NAME_LEN}s },%s\\n" "\"$CODE\"," "\"$NAME\"," "$COMMENT" >> "$TMPFILE"

    done

    # update file

    mv $TMPFILE $LANGUAGES_FILE

    if [ ! -z "$NEW_LANGS" ]; then

        echo ""

        echo "please, enter names for following languages:$NEW_LANGS"

        echo ""

        echo "see file $LANGUAGES_FILE"

        echo ""

    fi

}

cd "$(cd `dirname "$0"`; pwd)/.."

update_linguas "synfig-core/po"

update_linguas "synfig-studio/po"

update_languages_inc

echo "done"