#!/bin/bash
cd /docker/keepalived

# 1. MANUAL VARIABLE EXTRACTION (No more sourcing!)
get_env_val() {
    # Greps the key, gets the value after =, and strips surrounding quotes
    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")

# Debug check
echo "Generator started for LXC: $LXC_NUM"

# 2. PATHS
CONFIG_DIR="./config"
HEADER_TPL="./keepalived_header.tpl"
SLOT_TPL="./keepalived_slot.tpl"
CONFIG_FILE="${CONFIG_DIR}/keepalived.conf"

mkdir -p "$CONFIG_DIR" "./checks"

# 3. BUILD HEADER
cp "$HEADER_TPL" "$CONFIG_FILE"
sed -i "s/{{LXC_NUM}}/${LXC_NUM}/g" "$CONFIG_FILE"

# 4. PARSE SLOTS
echo "$SLOT_DEFINITIONS" | while IFS=',' read -r s_num s_name s_dep s_state s_prio s_peer s_vip junk
do
    [[ -z "$s_num" ]] && continue
    echo "Processing Slot $s_num: $s_name"
    
    TEMP_SLOT="/tmp/slot_${s_num}.conf"
    cp "$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

# 5. PERMS
cp ./check_services.sh ./checks/check_services.sh
chmod +x ./checks/check_services.sh