#!/bin/bash

# Internal Initialization

source "${DIP_FUNCTIONS}"

if [[ -r "${DIP_BASE_DIR}/conf.d/${DIP_AGENT_NAME}.conf" ]]; then
    source "${DIP_BASE_DIR}/conf.d/${DIP_AGENT_NAME}.conf"
fi

if [[ -r "${DIP_BASE_DIR}/conf.d/${DIP_AGENT_EXEC}.conf" ]]; then
    source "${DIP_BASE_DIR}/conf.d/${DIP_AGENT_EXEC}.conf"
fi

#if [[ -z "$agent_update_dns_r53_id" ]]; then
#    logerr "ERROR: Need 'agent_update_dns_r53_id' to be defined to your Route53 Domain ID"
#    exit 99
#fi

#if [[ -d "${DIP_BASE_DIR}/aws" ]]; then
#    if [[ ! -r "${DIP_BASE_DIR}/aws/config" ]]; then
#        logerr "ERROR: AWS config file not found: '${DIP_BASE_DIR}/aws/config'"
#        exit 99
#    elif [[ ! -r "${DIP_BASE_DIR}/aws/credentials" ]]; then
#        logerr "ERROR: AWS credentials file not found: '${DIP_BASE_DIR}/aws/credentials'"
#        exit 99
#    else
#        export AWS_CONFIG_FILE="${DIP_BASE_DIR}/aws/config"
#        export AWS_SHARED_CREDENTIALS_FILE="${DIP_BASE_DIR}/aws/credentials"
#    fi
#else
#    logerr "ERROR: AWS config directory not found. '${DIP_BASE_DIR}/aws/' is expected to exist and contain 'config' and 'credentials' for AWS access."
#    exit 99
#fi


if [[ -z "$DIP_CUR_IP" ]] || [[ -z "$DIP_OLD_IP" ]] || [[ -z "$DIP_RECORD" ]]; then
    logerr "ERROR: Agent expects currentip, existingip, and record."
    exit 98
fi

_get_host_and_domain() {
    local record=$1

    hostname=${record%%.*}
    domain=${record#*.}

    if [[ -n "${agent_update_dns_namecheap_token[$domain]}" ]]; then
        token="${agent_update_dns_namecheap_token[$domain]}"
        return 0
    else
        logerr "ERROR: Password for $domain not found in agent configuration."
        return 1
    fi
}

# Main

_get_host_and_domain "$DIP_RECORD" || exit 99

if valid_ipv4 "$DIP_CUR_IP"; then
    log "Updating Namecheap DNS IPv4 Record for ${hostname}.${domain}"
    curl "https://dynamicdns.park-your-domain.com/update?host=${hostname}&domain=${domain}&password=${token}&ip=${DIP_CUR_IP}"
fi

if valid_ipv6 "$DIP_CUR_IP"; then
    log "Updating Namecheap DNS IPv6 Record for ${hostname}.${domain}"
    curl "https://dynamicdns.park-your-domain.com/update?host=${hostname}&domain=${domain}&password=${token}&ip=${DIP_CUR_IP}"
fi