#!/bin/sh
SEARCH_DIR="../blog/"
MAX_RESULTS=50
QUERY="$QUERY_STRING"

if [ -z "$QUERY" ]; then
    printf "!Search Sava.Rocks\r\n\r\n"
    printf "You can search this gopher hole. \r\n"
    printf "\r\n"
    printf "7Search the blog\t/search/\r\n"
    printf "\r\n"
    exit 0
fi

RESULTS=$(find "$SEARCH_DIR" -mindepth 2 -type f -name "gophermap" -print0 \
          | xargs -0 grep -liF "$QUERY" 2>/dev/null \
          | head -n "$MAX_RESULTS")

printf "!Search Sava.Rocks\r\n"
printf "\r\n"
printf "Search results for '%s'\r\n" "$QUERY"
printf "\r\n"

[ -z "$RESULTS" ] && {

    printf "No results found.\r\n"
    printf "\r\n"
    printf "7Search again\t/search/\r\n"
    printf "1Back to my blog\t/blog/\r\n"
    printf "1Back to my homepage\t/\r\n"
    exit 0
}

get_title() {
    grep -m 1 '^!' "$1" | sed 's/^! *//'
}

printf '%s\n' "$RESULTS" | while IFS= read -r FILE || [ -n "$FILE" ]; do
    REL=${FILE#"$SEARCH_DIR"}       # removes "../blog/"

    SLUG=$(echo "$REL" | sed -E 's#([^/]+)/gophermap#\1#')
    LINK="/blog/$SLUG/"

    TITLE=$(get_title "$FILE")
    [ -z "$TITLE" ] && TITLE="$SLUG"

    SNIPPET=$(grep -i -m 1 "$QUERY" "$FILE" | cut -c1-70)

    printf "1$TITLE\t$LINK\r\n"
    printf "%s\r\n\r\n" "$SNIPPET"
    
done
printf "7Search again\t/search/\r\n"
printf "1Back to my blog\t/blog/\r\n"
printf "1Back to my homepage\t/\r\n"