#!/bin/bash

target () {
    if [ "${1#*.}" = "md" ]; then
        echo "output/$(echo "${1%.md}.html" | cut -sd / -f 2-)"
    else
        echo "output/$(echo "$1" | cut -sd / -f 2-)"
    fi
}

handle () {
    TARGET=$(target "$1")
    mkdir -p $(dirname "$TARGET")

    if [ "${1#*.}" = "md" ]; then
        echo "[COMPILE] $1 -> $TARGET"

        pandoc "$1" \
            -f markdown \
            -t html5 \
            --template templates/base.html \
            -o "$TARGET" \
            --metadata-file metadata/metadata.json
    else
        echo "[COPY   ] $1 -> $TARGET"

        cp "$1" "$TARGET"
    fi
}

if [ -z "$1" ]; then
    find content/ \
        -type f \
        | while read FILE
            do
                handle "$FILE"
            done
elif [ "$1" = "md" ]; then
    find content/ \
        -type f \
        -name "*.md" \
        | while read FILE
            do
                handle "$FILE"
            done
elif [ "$1" = "single" ]; then
    if [ -z "$2" ]; then
        echo "[ERROR  ] \"single\" operation requires file argument"
    else
        handle "$2"
    fi
elif [ "$1" = "delete" ]; then
    if [ -z "$2" ]; then
        echo "[ERROR  ] \"delete\" operation requires file argument"
    else
        TARGET=$(target "$2")
        echo "[DELETE ] $2 -> $TARGET"
        rm -rf $TARGET
    fi
else
    echo "[ERROR  ] Unknown operation: \"$1\""
fi