#!/usr/bin/env bash

tournament=autumn2013

# Regexps to parse the result of game
date='([0-9]{2}\.[0-9]{2}\.[0-9]{4})'
white='(.+)'
black='(.+)'
result='((1|0|0\.5):(1|0|0\.5))'

# Directories to search `tour_info' in
if [[ $# != 0 ]]; then
    tour_dirs=()
    for number in $@; do
        # Change tour numbers: `1' -> `01', `2' -> `02', and so on
        number=0"$number"
        number=${number:(-2)}

        tour_dirs+=($tournament/tour_$number)
    done
else
    tour_dirs=($tournament/tour_*)
fi

for dir in "${tour_dirs[@]}"; do
    number=${dir:(-2)}
    number=${number#0} # remove the leading `0' if any

    echo "- number: ${number}"
    echo "  games:"

    # Add a newline at the end of `tour_info' to parse the last line
    tour_info=$(cat $dir/tour_info && echo)

    while read line; do
        # Parsed data of game: date a[1], white player a[2], black
        # player a[6], and the result a[3]
        data=( $(echo "$line" | gawk --re-interval \
            'match($0, /'${date}' — '${white}' '${result}' '${black}'/, a) \
            { print a[1], a[2], a[6], a[3] }') )

        if [[ ${#data[@]} != 0 ]]; then
            echo "  - date:   ${data[0]}"
            echo "    white:  ${data[1]}"
            echo "    black:  ${data[2]}"
            echo "    result: '${data[3]}'"
            echo
        fi
    done <<< "$tour_info"
done