#!/bin/bash
# info: list database host
# options: type host [format]
#
# The function for obtaining host's database parameters.


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

# Argument defenition
type=$1
host=$2
format=${3-shell}

# Importing variables
source $VESTA/conf/vars.conf
source $V_FUNC/shared.func
source $V_FUNC/db.func

# Json function
json_list_dbhost() {
    # Definigng variables
    i=1

    # Define words number
    fields_count=$(echo "$fields" | wc -w)

    # Reading file line by line
    line=$(grep "HOST='$host'" $conf)

    # Print top bracket
    echo '{'

    # Assign key=value
    eval $line

    # Starting output loop
    for field in $fields; do

        # Parsing key=value
        eval value=$field

        # Checking first field
        if [ "$i" -eq 1 ]; then
            echo -e "\t\"$value\": {"
        else
            if [ "$fields_count" -eq "$i" ]; then
                echo -e "\t\t\"${field//$/}\": \"${value//,/, }\""
            else
                echo -e "\t\t\"${field//$/}\": \"${value//,/, }\","
            fi
        fi
        (( ++i))
    done
    # If there was any output
    if [ -n "$value" ]; then
        echo -e "\t}"
    fi

    # Printing bottom json bracket
    echo -e "}"
}

# Shell function
shell_list_dbhost() {

    # Reading file line by line
    line=$(grep "HOST='$host'" $conf)

    # Parsing key=value
    eval $line

    # Print result line
    for field in $fields; do
        eval key="$field"
        echo "${field//$/}: $key"
    done
}


#----------------------------------------------------------#
#                    Verifications                         #
#----------------------------------------------------------#

# Checking args
check_args '2' "$#" 'type host [format]'

# Checking argument format
format_validation 'host'

# Checking db type
is_type_valid 'db' "$type"

# Checking db host
is_db_host_valid


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Defining config type
conf=$V_DB/$type.conf

# Defining fileds to select
fields='$HOST $PORT $MAX_DB $U_SYS_USERS $U_DB_BASES $ACTIVE $DATE'

# Listing database
case $format in 
    json)   json_list_dbhost ;;
    plain)  nohead=1; shell_list_dbhost ;;
    shell)  shell_list_dbhost | column -t;;
    *)      check_args '2' '0' 'type host [format]'
esac


#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

exit