#!/bin/sh

inotifywait -m /out -e close_write |
    while read PATH ACTION FILE; do

        if [[ "${FILE}" == *.mp4 ]]
        then
            echo "Following PATH is selected: $PATH"
            echo "Uploading following FILE: $FILE"

            file_path="${PATH}${FILE}"
            chunk_size="$CHUNK_SIZE"
            id="${FILE%.mp4}"

            file_size=$(/bin/stat -c%s "$file_path")
            num_chunks=$(( (file_size + chunk_size - 1) / chunk_size ))

            i=0
            while [ $i -lt $num_chunks ]; do
                offset=$(( i * chunk_size ))
                /bin/dd if="$file_path" bs=$chunk_size skip=$i count=1 2>/dev/null | \
                /usr/bin/curl --location "$UPLOAD_URL" \
                --header "Authorization: Bearer $AUTH_TOKEN" \
                --form "recording_id=${id}" \
                --form "chunk_index=${i}" \
                --form "total_chunks=${num_chunks}" \
                --form "FILE=@-"

                i=$(( i + 1 ))
            done
        fi
    done