#!/bin/bash
sleep 10
echo loading start.sh
# replace_config_values() {
#     echo replacing configuration values
#     local config_template="/etc/headscale-example/config-example.yaml"
#     local config_output="/etc/headscale/config.yaml"

#     # Default values
#     local DEFAULT_SERVER_URL="http://127.0.0.1:8080"
#     local DEFAULT_LISTEN_ADDR="127.0.0.1:8080"
#     local DEFAULT_METRICS_LISTEN_ADDR="127.0.0.1:9090"
#     local DEFAULT_GRPC_LISTEN_ADDR="127.0.0.1:50443"
#     local DEFAULT_GRPC_ALLOW_INSECURE="false"
#     local DEFAULT_DB_TYPE="sqlite3"
#     local DEFAULT_DB_PATH="/var/lib/headscale/db.sqlite"
#     local DEFAULT_UNIX_SOCKET="/var/run/headscale/headscale.sock"
#     local DEFAULT_UNIX_SOCKET_PERMISSION="0770"

#     # Check if the output config file already exists
#     if [[ -f "$config_output" ]]; then
#         echo "$config_output already exists."
#         return 0
#     fi

#     # Ensure the template file exists
#     if [[ ! -f "$config_template" ]]; then
#         echo "Template file $config_template not found."
#         return 1
#     fi

#     # Function to replace or use default value
#     replace_or_default() {
#         local var_name=$1
#         local default_value=$2
#         local line=$3
#         local var_value
#         eval var_value=\$$var_name
#         if [ -z "$var_value" ]; then
#             var_value=$default_value
#         fi
#         echo "${line/\$\{$var_name\}/$var_value}"
#     }

#     # Read the template and replace variables with defaults if not set
#     while IFS='' read -r line || [[ -n "$line" ]]; do
#         line=$(replace_or_default "SERVER_URL" "$DEFAULT_SERVER_URL" "$line")
#         line=$(replace_or_default "LISTEN_ADDR" "$DEFAULT_LISTEN_ADDR" "$line")
#         line=$(replace_or_default "METRICS_LISTEN_ADDR" "$DEFAULT_METRICS_LISTEN_ADDR" "$line")
#         line=$(replace_or_default "GRPC_LISTEN_ADDR" "$DEFAULT_GRPC_LISTEN_ADDR" "$line")
#         line=$(replace_or_default "GRPC_ALLOW_INSECURE" "$DEFAULT_GRPC_ALLOW_INSECURE" "$line")
#         line=$(replace_or_default "DB_TYPE" "$DEFAULT_DB_TYPE" "$line")
#         line=$(replace_or_default "DB_PATH" "$DEFAULT_DB_PATH" "$line")
#         line=$(replace_or_default "UNIX_SOCKET" "$DEFAULT_UNIX_SOCKET" "$line")
#         line=$(replace_or_default "UNIX_SOCKET_PERMISSION" "$DEFAULT_UNIX_SOCKET_PERMISSION" "$line")
#         echo "$line"
#     done < "$config_template" > "$config_output"

#     echo "Config file generated at $config_output"
# }

# ensure_private_key_exists() {
#     local key_path="/var/lib/headscale/derp_server_private.key"

#     # Check if the file exists and is a valid private key
#     if [[ -f "$key_path" ]] && openssl rsa -check -noout -in "$key_path" > /dev/null 2>&1; then
#         echo "Valid private key already exists at $key_path."
#     else
#         # Generate a new 2048-bit RSA private key
#         mkdir -p /var/lib/headscale
#         openssl genpkey -algorithm RSA -out "$key_path" -pkeyopt rsa_keygen_bits:2048
#         if [[ $? -eq 0 ]]; then
#             echo "New private key generated at $key_path."
#         else
#             echo "Failed to generate private key."
#             return 1
#         fi
#     fi
# }

# echo testgen derp private key
# ensure_private_key_exists

# ensure_noise_private_key_exists() {
#     local key_path="/var/lib/headscale/noise_private.key"

#     # Check if the file exists and is a valid private key
#     if [[ -f "$key_path" ]] && openssl rsa -check -noout -in "$key_path" > /dev/null 2>&1; then
#         echo "Valid Noise private key already exists at $key_path."
#     else
#         # Generate a new 2048-bit RSA private key
#         mkdir -p /var/lib/headscale
#         openssl genpkey -algorithm RSA -out "$key_path" -pkeyopt rsa_keygen_bits:2048
#         if [[ $? -eq 0 ]]; then
#             echo "New Noise private key generated at $key_path."
#         else
#             echo "Failed to generate Noise private key."
#             return 1
#         fi
#     fi
# }

# echo testgen noise private key
# ensure_noise_private_key_exists


# # Run the function to replace variables and start headscale
# replace_config_values
# echo configuration implementation system finished.
# cat /etc/headscale/config.yaml
# echo running headscales configtest
# headscale configtest
echo launching headscale.
headscale serve