#!/bin/bash

BASEURL="http://localhost:8081"
BASEURI="https://owncloud.srs.epita.fr/remote.php/webdav/FIC 2018"
BASEFILE="/mnt/fic/"
CLOUDPASS="$CLOUD_USER:$CLOUD_PASS"

new_theme() {
    NAME=`echo $1 | sed 's/"/\\\\"/g'`
    AUTHORS=`echo $2 | sed 's/"/\\\\"/g'`
    curl -f -s -d "{\"name\": \"$NAME\", \"authors\": \"$AUTHORS\"}" "${BASEURL}/api/themes" |
	grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
}

new_exercice() {
    THEME="$1"
    TITLE=`echo "$2" | sed 's/"/\\\\"/g'`
    STATEMENT=`echo "$3" | sed 's/"/\\\\"/g' | sed ':a;N;$!ba;s/\n/<br>/g'`
    DEPEND="$4"
    GAIN="$5"
    VIDEO="$6"

    curl -f -s -d "{\"title\": \"$TITLE\", \"statement\": \"$STATEMENT\", \"depend\": $DEPEND, \"gain\": $GAIN, \"videoURI\": \"$VIDEO\"}" "${BASEURL}/api/themes/$THEME/exercices" |
	grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
}

new_file() (
    THEME="$1"
    EXERCICE="$2"
    URI="$3"
    DIGEST="$4"
    ARGS="$5"

    FIRST=
    PARTS=$(echo "$ARGS" | while read arg
    do
	[ -n "$arg" ] && {
	    [ -z "${FIRST}" ] || echo -n ","
	    echo "\"$arg\""
	}
	FIRST=1
    done)

    [ -n "${DIGEST}" ] && DIGEST=", \"digest\": \"${DIGEST}\""

    cat <<EOF >&2
{"path": "${BASEFILE}${URI}"${DIGEST}, "parts": [${PARTS}]}
EOF

#    curl -f -s -d "{\"URI\": \"${BASEFILE}${URI}\"}" "${BASEURL}/api/themes/$THEME/$EXERCICE/files" |
    curl -f -s -d @- "${BASEURL}/api/themes/$THEME/exercices/$EXERCICE/files" <<EOF | grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
{"path": "${BASEFILE}${URI}"${DIGEST}, "parts": [${PARTS}]}
EOF
)

new_hint() {
    THEME="$1"
    EXERCICE="$2"
    TITLE=`echo "$3" | sed 's/"/\\\\"/g'`
    CONTENT=`echo "$4" | sed 's/"/\\\\"/g' | sed ':a;N;$!ba;s/\n/<br>/g'`
    COST="$5"
    URI="$6"

    [ -n "${CONTENT}" ] && CONTENT=", \"content\": \"${CONTENT}\""
    [ -n "${URI}" ] && URI=", \"path\": \"${BASEFILE}${URI}\""

    curl -f -s -d "{\"title\": \"$TITLE\"$CONTENT$URI, \"cost\": $COST}" "${BASEURL}/api/themes/$THEME/exercices/$EXERCICE/hints" |
	grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
}

new_key() {
    THEME="$1"
    EXERCICE="$2"
    TYPE="$3"
    KEY=`echo $4 | sed 's#\\\\#\\\\\\\\#g' | sed 's/"/\\\\"/g'`

    curl -f -s -d "{\"type\": \"$TYPE\", \"key\": \"$KEY\"}" "${BASEURL}/api/themes/$THEME/exercices/$EXERCICE/keys" |
	grep -Eo '"id":[0-9]+,' | grep -Eo "[0-9]+"
}

get_dir_from_cloud() {
    curl -f -s -X PROPFIND -u "${CLOUDPASS}" "${BASEURI}$1" | xmllint --format - | grep 'd:href' | sed -E 's/^.*>(.*)<.*$/\1/'
}
get_dir() {
    ls "${BASEFILE}$1" 2> /dev/null
}
#alias get_dir=get_dir_from_cloud

get_file_from_cloud() {
    curl -f -s -u "${CLOUDPASS}" "${BASEURI}$1" | tr -d '\r'
}
get_file() {
    cat "${BASEFILE}$1" 2> /dev/null | tr -d '\r'
    echo
}
#alias get_file=get_file_from_cloud

unhtmlentities() {
    cat | sed -E 's/%20/ /g' | sed -E "s/%27/'/g" | sed -E 's/%c3%a9/é/g' | sed -E 's/%c3%a8/è/g'
}

# Theme
{
    if [ $# -ge 1 ]; then
	echo $1
    else
	get_dir ""
    fi
} | while read f; do basename "$f"; done | while read THEME_URI
do
    THM_BASEURI="/${THEME_URI}/"
    THEME_NAME=$(echo "${THEME_URI#*-}" | unhtmlentities)
    THEME_AUTHORS=$(get_file "${THM_BASEURI}/AUTHORS.txt" | sed '/^$/d;s/$/, /' | tr -d '\n' | sed 's/, $//')
    THEME_ID=`new_theme "$THEME_NAME" "$THEME_AUTHORS"`
    if [ -z "$THEME_ID" ]; then
        echo -e "\e[31;01m!!! An error occured during theme add\e[00m"
        continue
    else
        echo -e "\e[33m>>> New theme created:\e[00m $THEME_ID - $THEME_NAME"
    fi

    LAST=null
    EXO_NUM=0
    {
	if [ $# -ge 2 ]; then
	    echo "$2"
	else
	    get_dir "${THM_BASEURI}"
	fi
    } | while read f; do basename "$f"; done | while read EXO_URI
    do
	case ${EXO_URI} in
	    [0-9]-*)
	    ;;
	    *)
		continue;;
	esac

	#EXO_NUM=$((EXO_NUM + 1))
	EXO_NUM=${EXO_URI%-*}
	EXO_NAME=$(echo "${EXO_URI#*-}" | unhtmlentities)
	echo
	echo -e "\e[36m--- Filling exercice ${EXO_NUM} in theme ${THEME_NAME}\e[00m"

	EXO_BASEURI="${EXO_URI}/"

	EXO_VIDEO=$(get_dir "${THM_BASEURI}${EXO_BASEURI}/resolution/" | grep -E "\.(mov|mkv|mp4|avi|flv|ogv|webm)$" | while read f; do basename "$f"; done | tail -1)
	[ -n "$EXO_VIDEO" ] && EXO_VIDEO="/resolution${THM_BASEURI}${EXO_BASEURI}resolution/${EXO_VIDEO}"

	if [ "${LAST}" = "null" ]; then
	    echo ">>> Assuming this exercice has no dependency"
	else
	    echo ">>> Assuming this exercice depends on the last entry (id=${LAST})"
	fi

	EXO_GAIN=$((3 * (2 ** $EXO_NUM) - 1))
	HINT_COST=$(($EXO_GAIN / 4))
	echo ">>> Using default gain: ${EXO_GAIN} points"

	EXO_SCENARIO=$(get_file "${THM_BASEURI}${EXO_BASEURI}/scenario.txt")

	EXO_ID=`new_exercice "${THEME_ID}" "${EXO_NAME}" "${EXO_SCENARIO}" "${LAST}" "${EXO_GAIN}" "${EXO_VIDEO}"`
	if [ -z "$EXO_ID" ]; then
	    echo -e "\e[31;01m!!! An error occured during exercice add.\e[00m"
	    continue
	else
	    echo -e "\e[32m>>> New exercice created:\e[00m $EXO_ID - $EXO_NAME"
        fi


	# Keys
	get_file "${THM_BASEURI}${EXO_BASEURI}/flags.txt" | while read KEYLINE
	do
	    [ -z "${KEYLINE}" ] && continue

	    KEY_NAME=$(echo "$KEYLINE" | cut -d$'\t' -f 1)
	    KEY_RAW=$(echo "$KEYLINE" | cut -d$'\t' -f 2-)

	    if [ -z "${KEY_RAW}" ] || [ "${KEY_NAME}" = "${KEY_RAW}" ]; then
		KEY_NAME=$(echo "$KEYLINE" | cut -d : -f 1)
		KEY_RAW=$(echo "$KEYLINE" | cut -d : -f 2-)
	    fi

	    if [ -z "${KEY_NAME}" ]; then
		KEY_NAME="Flag"
	    fi

	    KEY_ID=`new_key "${THEME_ID}" "${EXO_ID}" "${KEY_NAME}" "${KEY_RAW}"`
	    if [ -z "$KEY_ID" ]; then
	        echo -e "\e[31;01m!!! An error occured during key import!\e[00m (name=${KEYNAME};raw=${KEY_RAW})"
	    else
	        echo -e "\e[32m>>> New key added:\e[00m $KEY_ID - $KEY_NAME"
	    fi
	done


	# Hints
	HINTS=$(get_dir "${THM_BASEURI}${EXO_BASEURI}/hints/" | sed -E 's#(.*)#hints/\1#')
	[ -z "${HINTS}" ] && HINTS=$(get_dir "${THM_BASEURI}${EXO_BASEURI}/" | grep ^hint.)
	[ -z "${HINTS}" ] && HINTS="hint.txt"
	HINT_COUNT=1
	echo "${HINTS}" | while read HINT
	do
	    EXO_HINT=$(get_file "${THM_BASEURI}${EXO_BASEURI}/${HINT}")
	    if [ -n "$EXO_HINT" ]; then
		EXO_HINT_TYPE=$(echo "${EXO_HINT}" | file --mime-type -b -)
		if echo "${EXO_HINT_TYPE}" | grep text/ && [ $(echo "${EXO_HINT}" | wc -l) -lt 25 ]; then
		    HINT_ID=`new_hint "${THEME_ID}" "${EXO_ID}" "Astuce #${HINT_COUNT}" "${EXO_HINT}" "${HINT_COST}"`
		else
		    HINT_ID=`new_hint "${THEME_ID}" "${EXO_ID}" "Astuce #${HINT_COUNT}" "" "${HINT_COST}" "${THM_BASEURI}${EXO_BASEURI}/${HINT}"`
		fi

		if [ -z "$HINT_ID" ]; then
		    echo -e "\e[31;01m!!! An error occured during hint import!\e[00m (title=Astuce #${HINT_COUNT};content::${EXO_HINT_TYPE};cost=${HINT_COST})"
		else
		    echo -e "\e[32m>>> New hint added:\e[00m $HINT_ID - Astuce #${HINT_COUNT}"
		fi
	    fi
	    HINT_COUNT=$(($HINT_COUNT + 1))
	done


	# Files: splited
	get_dir "${THM_BASEURI}${EXO_BASEURI}files/" | grep -v DIGESTS.txt | grep '[0-9][0-9]$' | sed -E 's/\.?([0-9][0-9])$//' | sort | uniq | while read f; do basename "$f"; done | while read FILE_URI
	do
	    DIGEST=$(get_file "${THM_BASEURI}${EXO_BASEURI}files/DIGESTS.txt" | grep "${FILE_URI}\$" | awk '{ print $1; }')

	    PARTS=
	    for part in $(get_dir "${THM_BASEURI}${EXO_BASEURI}files/" | grep "${FILE_URI}" | sort)
	    do
		PARTS="${PARTS}${BASEFILE}${THM_BASEURI}${EXO_BASEURI}files/${part}
"
	    done
	    echo -e "\e[35mImport splited file ${THM_BASEURI}${EXO_BASEURI}files/${FILE_URI} from\e[00m `echo ${PARTS} | tr '\n' ' '`"

	    FILE_ID=`new_file "${THEME_ID}" "${EXO_ID}" "${THM_BASEURI}${EXO_BASEURI}files/${FILE_URI}" "${DIGEST}" "${PARTS}"`
	    if [ -z "$FILE_ID" ]; then
	        echo -e "\e[31;01m!!! An error occured during file import! Please check path.\e[00m"
	    else
	        echo -e "\e[32m>>> New file added:\e[00m $FILE_ID - $FILE_URI"
	    fi
	done

	# Files: entire
	get_dir "${THM_BASEURI}${EXO_BASEURI}files/" | grep -v DIGESTS.txt | grep -v '[0-9][0-9]$' | while read f; do basename "$f"; done | while read FILE_URI
	do
	    DIGEST=$(get_file "${THM_BASEURI}${EXO_BASEURI}files/DIGESTS.txt" | grep "${FILE_URI}\$" | awk '{ print $1; }')

	    echo "Import file ${THM_BASEURI}${EXO_BASEURI}files/${FILE_URI}"
	    FILE_ID=`new_file "${THEME_ID}" "${EXO_ID}" "${THM_BASEURI}${EXO_BASEURI}files/${FILE_URI}" "${DIGEST}"`
	    if [ -z "$FILE_ID" ]; then
	        echo -e "\e[31;01m!!! An error occured during file import! Please check path.\e[00m"
	    else
	        echo -e "\e[32m>>> New file added:\e[00m $FILE_ID - $FILE_URI"
	    fi
	done


	LAST=$EXO_ID
    done
    echo
done