#! /bin/bash -
# set -x

source ./log_helpers
source ./general_utils

if [ ${read_config_sourced:-1} = "1" ]; then    # include only once
    readonly read_config_sourced=${BASH_SOURCE[0]}
        
    readonly MAJOR="0"
    readonly MINOR="1"
    readonly PATCH="0"

    readonly DATEFLAGS="+%Y.%m.%dT%H.%M.%S"
    readonly STRIPCOMMENTS='sed -e s/#.*$//g'
    readonly STRIPWHITESPACE='sed -E -e s/^[[:space:]]*$//g'
    readonly INDENT="awk '{ print \"\t\t\t\" \$0 }'"
    readonly JOINLINES="tr '\n' '\040'"

    readonly UPDATEPSAHOME=$HOME/.updatepsa

    readonly UPDATEPSABEGIN=./.updatepsa/begin
    readonly UPDATEPSAEND=./.updatepsa/end

    readonly PROGRAM=`basename $0`
    readonly WORKSPACE_DIR=workspace

    WORKING_DIRECTORY=${WORKING_DIRECTORY:-$UPDATEPSAHOME}
    CONFIGFILENAME=${CONFIGFILENAME:-'update_psa.conf'}

    if ! [ -f "$CONFIGFILENAME" ]; then
        log_fatal "$func:${LINENO}: $CONFIGFILENAME not found"
    fi

    if ! [ -d "$WORKING_DIRECTORY" ]; then 
        log_fatal "$func:${LINENO}: $WORKING_DIRECTORY not found"
    fi
    
    EXITCODE=$RC_SUCCESS
    CLONE_CUSTOMER_REPOSITORY=false

    # read config file (JSON syntax)
    read_config() {
        local func="${FUNCNAME[0]}"
    
        log_debug "$func:${LINENO}: CONFIGFILENAME=$CONFIGFILENAME"
        log_debug "$func:${LINENO}: WORKING_DIRECTORY=$WORKING_DIRECTORY"
        
        local readonly cf="$CONFIGFILENAME"

        ### TODO: wieso wird hier in das verzeichnis gewechselt
        if cd $WORKING_DIRECTORY ; then
            log_debug "$func:${LINENO}: cd to $WORKING_DIRECTORY"
        else
            log_fatal "$func:${LINENO}: cannot cd to $WORKING_DIRECTORY"
        fi
        
        readonly GIT_SSL_NO_VERIFY="$(cat "$cf" | jq -r .GIT_SSL_NO_VERIFY)"
        assert_s GIT_SSL_NO_VERIFY

        readonly CUSTOMER_LOCATION=$(cat "$cf" | jq -r .customer_location)
        assert_s CUSTOMER_LOCATION

        readonly CUSTOMER_ID="$(cat "$cf" | jq -r .customer_id)"
        assert_s CUSTOMER_ID
        
        readonly CUSTOMER_REPOSITORY_PATH="$(cat "$cf" |
                                             jq -r .cust_repository_path)"
        assert_s CUSTOMER_REPOSITORY_PATH

        local __number_of_zone_groups=$(cat "$cf"    | 
                                        jq -r .zg[0] |
                                        sed -E -e 's/[[:space:]]*//g')
        # TODO: was ist hier falsch
        # __n_of_zgroups=$(echo "$__n_of_zgrps" | ${STRIPWHITESPACE} )
        log_debug "$func:${LINENO}: #n of zone_groups: $__number_of_zone_groups"

        local __zone_groups=($__number_of_zone_groups)
        for zg in `seq 1 $__number_of_zone_groups`; do
            local __n_zones=$(cat "$cf"        |
                              jq -r .zg[$zg].z |
                              sed -E -e 's/[][,[:space:]]*//g') # rm ][ as well
            __zone_groups[$zg]=$__n_zones
        done

        readonly ZONE_GROUPS=(${__zone_groups[@]})
        assert_a ZONE_GROUPS
    

        return 0
    }
###############################################################################
########################## parsing with jq finished ###########################
###############################################################################
    compute_hash () {
        # TODO: wie genau soll der hash-wert berechnet werden ?
        HASH="12345abc"
        # HASH_="67890def"
        echo $HASH
    }

    compute_version () {
        VERSION="$MAJOR.$MINOR.$PATCH+$CUSTOMER_LOCATION-$(compute_hash)"
    }

    check_sanity_of_repository () {
        local func="${FUNCNAME[0]}"

        local __customer_id_base_dir="$WORKING_DIRECTORY/${WORKSPACE_DIR}"
        readonly CUSTOMER_ID_BASE_DIR="${__customer_id_base_dir}/${CUSTOMER_ID}"
        assert_d CUSTOMER_ID_BASE_DIR

        CUSTOMER_LOCATION_DIR="${CUSTOMER_ID_BASE_DIR}/${CUSTOMER_LOCATION}"
        assert_d CUSTOMER_LOCATION_DIR

        readonly UPDATE_CONF="${CUSTOMER_LOCATION_DIR}/update.conf"
        assert_f UPDATE_CONF
        
        readonly DC="dc2c.hex"
        readonly DC_SYS_DIR="/etc/dc"
        readonly DC_SYS_DC_FULL="${DC_SYS_DIR}/$DC"
        assert_d DC_SYS_DIR
        assert_f DC_SYS_DC_FULL

        readonly DC_DIR="${CUSTOMER_LOCATION_DIR}/dc"
        readonly DC_FULL="${DC_DIR}/$DC"
        assert_d DC_DIR
        assert_f DC_FULL
        
        # readonly zone_groups=(${__zone_groups[@]})
        # by now (03.03.2023) there is only one zone group.
        readonly local __zgroup=1
        local __number_of_zone_groups=${ZONE_GROUPS[0]}
        local __zindex=1
        local __customer_base_dirs=("placeholder")
        for __zg in `seq 1 $__number_of_zone_groups`; do
            local __n_of_zones=${ZONE_GROUPS[$__zindex]}
            log_debug "$func:${LINENO}: zgroup $__zg has $__n_of_zones zones"
            for (( j=1; j<=$__n_of_zones; ++j)); do
                __customer_base_dirs+=("${CUSTOMER_LOCATION_DIR}/$__zgroup/$j")
                log_debug "$func:${LINENO}: zone $j"
                ((++__zindex))
            done
        done

        readonly CUSTOMER_BASE_DIRS=(${__customer_base_dirs[@]})
        assert_a CUSTOMER_BASE_DIRS

        # TODO
        # TODO: falls mehrere gruppen/zonen auftauchen hier anpassen
        # TODO
        readonly ZONE=1
        readonly CUSTOMER_BASE_DIR="${CUSTOMER_BASE_DIRS[$ZONE]}"
        assert_d CUSTOMER_BASE_DIR

        readonly PSA_CONFIG_DIR="${CUSTOMER_BASE_DIR}/etc/psa_config"
        assert_d PSA_CONFIG_DIR

        readonly PSA_UPDATE_DIR="${CUSTOMER_BASE_DIR}/etc/psa_update"
        assert_d PSA_UPDATE_DIR

        readonly ATB_SYS_DIR="/etc/atb" 
        assert_d ATB_SYS_DIR

        readonly PSA_ATB_SYS_DIR="${CUSTOMER_BASE_DIR}${ATB_SYS_DIR}"
        assert_d PSA_ATB_SYS_DIR

        readonly PSA_BASE_INI_DIR="${CUSTOMER_BASE_DIR}/opt/app"
        assert_d PSA_BASE_INI_DIR

        readonly SYSCONFIG_SYS_DIR="/opt/app/sysconfig"
        assert_d SYSCONFIG_SYS_DIR

        readonly PSA_SYSCONFIG_DIR="${CUSTOMER_BASE_DIR}${SYSCONFIG_SYS_DIR}"
        assert_d PSA_SYSCONFIG_DIR

        readonly PSA_ISMASMGR_DIR="${PSA_BASE_INI_DIR}/ISMASMgr"
        assert_d PSA_ISMASMGR_DIR

        readonly CONF_SYS_DIR="/etc/psa_config"
        assert_d CONF_SYS_DIR

        readonly OPKG_SYS_DIR="/etc/psa_update"
        assert_d OPKG_SYS_DIR
        
        readonly ATBAPP_SYS_DIR="/opt/app/ATBAPP"
        assert_d ATBAPP_SYS_DIR
        
        readonly PSA_ATBQT_DIR="$CUSTOMER_BASE_DIR$ATBAPP_SYS_DIR"
        assert_d PSA_ATBQT_DIR

        readonly TARIFF_CURRENT="tariff.current"
        readonly TARIFF_CURRENT_FULL="${PSA_ATBQT_DIR}/$TARIFF_CURRENT"
        assert_f TARIFF_CURRENT_FULL

        readonly ATBQT_INI="ATBQT.ini"
        readonly ATBQT_INI_FULL="${PSA_ATBQT_DIR}/$ATBQT_INI"
        assert_f ATBQT_INI_FULL
        
        readonly ATBQT="ATBQT"
        readonly ATBQT_SYS_FULL="${ATBAPP_SYS_DIR}/$ATBQT"
        assert_f ATBQT_SYS_FULL
       
        readonly ISMASMGR_INI="ISMASMgr.ini"
        readonly ISMASMGR_SYS_DIR="/opt/app/ISMASMgr"
        assert_d ISMASMGR_SYS_DIR

        readonly ISMASMGR_ISMASMGR_INI_FULL="${PSA_ISMASMGR_DIR}/$ISMASMGR_INI"
        assert_f ISMASMGR_ISMASMGR_INI_FULL

        readonly SYSCONFIG_ISMASMGR_INI_FULL="${PSA_SYSCONFIG_DIR}/ISMASMgr.ini"
        assert_f SYSCONFIG_ISMASMGR_INI_FULL

        readonly ATB_ISMASMGR_INI_FULL="${PSA_ATB_SYS_DIR}/$ISMASMGR_INI"
        assert_f ATB_ISMASMGR_INI_FULL

        readonly SYS_CONFIG_INI="sysconfig.ini"
        readonly __sysc_sysc_full="${PSA_SYSCONFIG_DIR}/$SYS_CONFIG_INI"
        readonly SYSCONFIG_SYSCONFIG_INI_FULL="$__sysc_sysc_full"
        assert_f SYSCONFIG_SYSCONFIG_INI_FULL

        readonly ATB_SYSCONFIG_INI_FULL="${PSA_ATB_SYS_DIR}/$SYS_CONFIG_INI"
        assert_f ATB_SYSCONFIG_INI_FULL

        readonly "SYSTEM_CONTROL_INI"="SystemControl.ini"
        local __sysctrl_ini_full="${PSA_SYSCONFIG_DIR}/$SYSTEM_CONTROL_INI"
        readonly SYSCONFIG_SYSCTRL_INI_FULL="$__sysctrl_ini_full"
        assert_f SYSCONFIG_SYSCTRL_INI_FULL

        readonly ATB_SYSCTRL_INI_FULL="${PSA_ATB_SYS_DIR}/$SYSTEM_CONTROL_INI"
        assert_f ATB_SYSCTRL_INI_FULL

        readonly ATB_ATBQT_INI_FULL="${PSA_ATB_SYS_DIR}/$ATBQT_INI"
        assert_f ATB_ATBQT_INI_FULL

        readonly DC2C_SERIAL_JSON="${PSA_CONFIG_DIR}/DC2C_serial.json"
        assert_f DC2C_SERIAL_JSON

        readonly DC2C_CASH_JSON="${PSA_CONFIG_DIR}/DC2C_cash.json"
        assert_f DC2C_CASH_JSON

        readonly DC2C_CONF_JSON="${PSA_CONFIG_DIR}/DC2C_conf.json"
        assert_f DC2C_CONF_JSON

        local DC2C_PRINT_JSON=()
        for i in {1..32}; do    # up to 32 print-json-files
            local __f=${PSA_CONFIG_DIR}/DC2C_print$(printf "%02d" $i).json
            readonly DC2C_PRINT$(printf "%02d" $i)_JSON=$__f
            # local __g=$(eval echo '$'DC2C_PRINT$(printf "%02d" $i)_JSON)
            assert_f DC2C_PRINT$(printf "%02d" $i)_JSON
            DC2C_PRINT_JSON+=($__f)
        done

        readonly OPKG_CMDS_FILE="${PSA_UPDATE_DIR}/opkg_commands"
        assert_f OPKG_CMDS_FILE

        # TODO: anpassen, da z.B. fuer szeged mehrere zonen vorhanden sind
        readonly KNOWN_CONF_FILES=(${CUSTOMER_LOCATION}/update.conf         \
                                   ${DC2C_PRINT_JSON[@]##*${CUSTOMER_ID}/}  \
                                   ${DC2C_CONF_JSON##*${CUSTOMER_ID}/}      \
                                   ${DC2C_CASH_JSON##*${CUSTOMER_ID}/}      \
                                   ${DC2C_SERIAL_JSON##*${CUSTOMER_ID}/})

        readonly KNOWN_INI_FILES=(${ATBQT_INI_FULL##*${CUSTOMER_ID}/}       \
                      ${ISMASMGR_ISMASMGR_INI_FULL##*${CUSTOMER_ID}/}       \
                      ${SYSCONFIG_ISMASMGR_INI_FULL##*${CUSTOMER_ID}/}      \
                      ${SYSCONFIG_SYSCONFIG_INI_FULL##*${CUSTOMER_ID}/}     \
                      ${SYSCONFIG_SYSCTRL_INI_FULL##*${CUSTOMER_ID}/}       \
                      ${ATB_ISMASMGR_INI_FULL##*${CUSTOMER_ID}/}            \
                      ${ATB_SYSCONFIG_INI_FULL##*${CUSTOMER_ID}/}           \
                      ${ATB_SYSCTRL_INI_FULL##*${CUSTOMER_ID}/}             \
                      ${ATB_ATBQT_INI_FULL##*${CUSTOMER_ID}/})
        
        readonly KNOWN_FILES=(${KNOWN_CONF_FILES[@]} \
                              ${KNOWN_INI_FILES[@]}  \
                              ${OPKG_CMDS_FILE##*${CUSTOMER_ID}/})

        log_debug "known conf/ini_files ->"
        for (( i=0; i < ${#KNOWN_FILES[@]}; ++i )); do
            tab=$'\t'
            log_debug "$tab$tab ${KNOWN_FILES[$i]}"
        done
        log_debug "sanity of ${CUSTOMER_REPOSITORY_PATH} OK"
        
        # compute version string for current (i.e. previous) version
        compute_version

        return 0
    }
fi