#!/bin/bash
cd /docker/keepalived

# 1. MANUAL EXTRACTION
get_env_val() {
    grep "^${1}=" .env | cut -d'=' -f2- | sed 's/^"//;s/"$//'
}

LXC_NUM=$(get_env_val "LXC_NUM")
SLOT_DEFINITIONS=$(get_env_val "SLOT_DEFINITIONS")
BASE_PASSWORD=$(get_env_val "BASE_PASSWORD")

# 2. PATHS
CONFIG_FILE="./config/keepalived.conf"
mkdir -p ./config ./checks
cp "./keepalived_header.tpl" "$CONFIG_FILE"
sed -i "s/{{LXC_NUM}}/${LXC_NUM}/g" "$CONFIG_FILE"

# 3. DUAL-STAGE PARSING
# First, we split the string into individual slots using the semicolon
IFS=';' read -ra SLOTS <<< "$SLOT_DEFINITIONS"

for SLOT in "${SLOTS[@]}"; do
    # Now we split the individual slot by commas
    IFS=',' read -r s_num s_name s_dep s_state s_prio s_peer s_vip junk <<< "$SLOT"
    
    [[ -z "$s_num" ]] && continue
    echo "Processing Slot $s_num: $s_name"
    
    TEMP_SLOT="/tmp/slot_${s_num}.conf"
    cp "./keepalived_slot.tpl" "$TEMP_SLOT"
    
    AUTH_PASS="${BASE_PASSWORD:0:7}-${s_num}"

    sed -i "s/{{SLOT_NUM}}/${s_num}/g" "$TEMP_SLOT"
    sed -i "s/{{LXC_NUM}}/${LXC_NUM}/g" "$TEMP_SLOT"
    sed -i "s/{{SVC_NAME}}/${s_name}/g" "$TEMP_SLOT"
    sed -i "s/{{SVC_DEP}}/${s_dep}/g" "$TEMP_SLOT"
    sed -i "s/{{STATE}}/${s_state}/g" "$TEMP_SLOT"
    sed -i "s/{{PRIORITY}}/${s_prio}/g" "$TEMP_SLOT"
    sed -i "s/{{PEER}}/${s_peer}/g" "$TEMP_SLOT"
    sed -i "s/{{SVC_VIP}}/${s_vip}/g" "$TEMP_SLOT"
    sed -i "s/{{AUTH_PASS}}/${AUTH_PASS}/g" "$TEMP_SLOT"

    cat "$TEMP_SLOT" >> "$CONFIG_FILE"
    rm "$TEMP_SLOT"
done

# 4. FINALIZE
cp ./check_services.sh ./checks/check_services.sh
chmod +x ./checks/check_services.sh