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#!/bin/bash

#
# Specify the utilities used
#
ECHO="printf"
GIT="git"
RSYNC="rsync"
SSH="ssh"
SED="sed"
WGET="wget"
CURL="curl"
BASH="bash"


# Revise these
UPLOAD="$RSYNC -av --delete --exclude literature --exclude .git -e \"ssh $SSH_KEY_OPTION\" \"$SOURCE\" \"$DESTINATION\""
UPLOAD_MINIMAL="$RSYNC -av --delete --exclude me --exclude tutorial --exclude example --exclude literature --exclude .git -e \"ssh $SSH_KEY_OPTION\" \"$SOURCE\" \"$DESTINATION\""



#
# Find my environment, before any work can be done
#

# For early error messages, also exists in .dbwebb.config
MSG_FAILED="\033[0;37;41mFAILED.\033[0m"

# Whar was the command issued?
DBW_EXECUTABLE="$( basename "$0" )"

# Where is the executable
DBW_EXECUTABLE_DIR="$( dirname "$0" )"

# Where is the installation directory
if [ -f "$DBW_EXECUTABLE_DIR/.dbwebb.version" ]; then
    DBW_INSTALL_DIR="$DBW_EXECUTABLE_DIR"
elif [ -d "$DBWEBB_HOME" ]; then
    DBW_INSTALL_DIR="$DBWEBB_HOME"
elif [ -d "$HOME/dbwebb-kurser/bin-dbwebb" ]; then
    DBW_INSTALL_DIR="$HOME/dbwebb-kurser/bin-dbwebb"
else 
    $ECHO "$MSG_FAILED Could not determine the installation directory."
    exit 1
fi

# Get the current version installed as $DBW_VERSION
DBW_VERSION_FILE="$DBW_INSTALL_DIR/.dbwebb.version"
if [ ! -f "$DBW_VERSION_FILE" ]; then
    $ECHO "$MSG_FAILED Missing file .dbwebb.version. The installation directory does not contain a valid installation.\n"
    exit 1
fi
source "$DBW_VERSION_FILE"

# Include the functions needed
DBW_FUNCTIONS_FILE="$DBW_INSTALL_DIR/dbwebb2-functions"
source "$DBW_FUNCTIONS_FILE"

# What is the current directory
DBW_CURRENT_DIR="$( pwd )"

# What is the directory of the current course repo
DBW_COURSE_DIR="$DBW_CURRENT_DIR"

# Get the name of the course as $DBW_COURSE
DBW_COURSE_FILE="$DBW_COURSE_DIR/.dbwebb.course"
if [ ! -f "$DBW_COURSE_FILE" ]; then
    $ECHO "$MSG_FAILED Missing file .dbwebb.course, this is not a valid course repo.\n"
    exit 1
fi
source "$DBW_COURSE_FILE"

# Where is the .dbwebb.config-file
DBW_CONFIG_DEFAULT_FILE="$DBW_INSTALL_DIR/dbwebb2-config-sample"
DBW_CONFIG_FILE_NAME=".dbwebb2.config"
DBW_CONFIG_FILE="$DBW_COURSE_DIR/$DBW_CONFIG_FILE_NAME"
if [ ! -f "$DBW_CONFIG_FILE" ]; then

    # If the command is to init-repo, then execute that and create a config-file
    if [ "$1" = "init-repo" ]; then
        createConfig
        exit 0
    else
        $ECHO "$MSG_FAILED Missing the file $DBW_CONFIG_FILE_NAME. This does NOT appear to be a valid course repo.\nHave you initiated this as a course repo? Run the following command in the root of the course repo:\n$DBW_EXECUTABLE init-repo\n\n"
        exit 1
    fi
fi
source "$DBW_CONFIG_FILE"


# Check OS
DBW_OS="$( uname -a )"

# Create the ssh-command with details from the config-file
SSH_CMD="$SSH ${DBW_USER}@${DBW_HOST} $DBW_SSH_KEY_OPTION"

# Create the basis for the upload command
RSYNC_CMD="$RSYNC -av --delete --exclude .git --exclude .gitignore -e \"ssh $DBW_SSH_KEY_OPTION\""



#
# Main
#
if [ $# -lt 1 ]
then
    dbwebb2PrintUsage
    exit 0
fi

updateConfigIfNeeded "update"



#
# Get options
#
SKIP_READLINE="no"
IGNORE_FAULTS="-i"
VERY_VERBOSE="no"

while getopts "hivwy" opt
do
    case $opt in
        h)
            dbwebb2PrintUsage
            exit 0
            ;;

        i)
            dbwebb2PrintUsageInspect
            exit 0
            ;;

#        i)
#            IGNORE_FAULTS="-i"
#            ;;

        v)
            $ECHO "$VERSION\n"
            exit 0
            ;;

        w)
            VERY_VERBOSE="yes"
            ;;

        y)
            SKIP_READLINE="yes"
            ;;

        \?)
            dbwebb2PrintUsage
            exit 1
            ;;
    esac
done
shift $((OPTIND - 1))



#
# Execute command
#
CMD=$1
case $CMD in

    init-repo)
        createConfig
        ;;

    init-me)
        createDefaultFiles
        ;;

    init-server)
        initServer
        ;;

    environment)
        environment
        ;;

    config)
        createConfig "create"
        ;;

    test)
        testConnection
        ;;

    version)
        version
        ;;

    login)
        loginToServer
        ;;

    push)
        pushToServer "$DBW_COURSE_DIR" "$DBW_REMOTE_DESTINATION" "$2"
        ;;

    pull)
        pullFromServer
        ;;

    sshkey)
        installSshKeys
        ;;

    init)
        initServer
        createDefaultFiles
        #uploadToServer
        ;;

    update)
        updateFromMaster
        ;;

    upload)
        setChmod
        uploadToServer
        ;;

    download)
        downloadFromServer
        ;;

    create)
        LAB="$2"
        if [ -z "$LAB" ]
        then
            echo "Missing name for lab, perhaps use lab1, lab2 or lab3?"
            exit 1
        fi
        createLab "$LAB"
        ;;

    validate)
        WHICH=$2
        validateUploadedResults ${WHICH:=all}
        ;;

    publish)
        WHICH=$2
        publishResults ${WHICH:=all}
        ;;

    inspect)
        WHICH=$2
        WHO=$3
        inspectResults ${WHICH:=all} ${WHO:=$USER}
        ;;

    *)
        dbwebb2PrintUsage
        exit 1
        ;;
esac