Files
go-caatsm/internal/config/config.go
T

228 lines
6.9 KiB
Go

package config
import (
"fmt"
"os"
"regexp"
"strings"
"time"
"github.com/spf13/viper"
)
var MyConfig *Config
type Config struct {
Nats NatsConfig
Subscription SubscriptionConfig
Timeouts TimeoutsConfig
Hasura HasuraConfig
}
type NatsConfig struct {
Client string
URL string
Cluster string
}
type SubscriptionConfig struct {
Topic string `mapstructure:"topic"`
QueueGroup string `mapstructure:"queue_group"`
}
type TimeoutsConfig struct {
Server time.Duration `mapstructure:"server"`
ReconnectWait time.Duration `mapstructure:"reconnect_wait"`
Close time.Duration `mapstructure:"close"`
AckWait time.Duration `mapstructure:"ack_wait"`
}
type BodyConfig struct {
Patterns []PatternConfig
}
type PatternConfig struct {
Pattern string
Comments string
Expression *regexp.Regexp
}
type HasuraConfig struct {
Endpoint string
Secret string
}
const (
EnvProd = "prod"
// logConfigFile = "configs/log_config.json"
// arrPatternString represents the regular expression pattern used to match arrival patterns.
// The pattern matches strings in the format: "(TYPE-NUMBER-SSR-DEPARTURE-ARRIVAL)".
// The pattern captures the following named groups:
// - category: the three-letter category code
// - number: the alphanumeric flight number
// - ssr: the alphanumeric SSR code
// - departure: the four-letter departure airport code
// - arrival: the four-letter arrival airport code
arrPatternString = `^\((?P<category>[A-Z]{3})` +
`-(?P<number>[A-Z0-9]+)(\/?(?P<ssr>[A-Z0-9]+))?` +
`-(?P<dep>[A-Z]{4})` +
`-(?P<arr>[A-Z]{4})(?P<arr_time>\d{4})\)$`
// depPatternString represents the regular expression pattern used to match departure patterns.
// The pattern matches strings in the format: "(TYPE-NUMBER-SSR-DEPARTURE-DEPARTURE_TIME-ARRIVAL)".
// The pattern captures the following named groups:
// - category: the three-letter category code
// - number: the alphanumeric flight number
// - ssr: the alphanumeric SSR code
// - departure: the four-letter departure airport code
// - departure_time: the four-digit departure time
// - arrival: the four-letter arrival airport code
depPatternString = `^\((?P<category>[A-Z]{3})-(?P<number>[A-Z0-9]+)(\/(?P<ssr>[A-Z0-9]+))?-(?P<dep>[A-Z]{4})(?P<dep_time>\d{4})-(?P<arr>[A-Z]{4})\)$`
// fplPatternString represents the regular expression pattern used to match flight plan patterns.
// The pattern matches strings in the format: "(CATEGORY-NUMBER-INDICATOR-AIRCRAFT-SURVE-DEPARTURE-DEPARTURE_TIME-SPEED-LEVEL-ROUTE-DESTINATION-ESTT-ALTER-OTHER)".
// The pattern captures the following named groups:
// - category: the three-letter category code
// - number: the alphanumeric flight number
// - indicator: the two-letter indicator
// - aircraft: the alphanumeric aircraft type, optionally followed by a slash and an uppercase letter
// - surve: any character sequence (surveillance information)
// - departure: the four-letter departure airport code
// - departure_time: the four-digit departure time
// - speed: one or more uppercase letters followed by one or more digits (e.g., N123)
// - level: one or more alphanumeric characters (e.g., FL350)
// - route: one or more characters (including newline) representing the flight route
// - destination: the four-letter destination airport code
// - estt: the four-digit estimated time of arrival
// - alter: one or more sequences of a whitespace character followed by exactly four uppercase letters
// - other: any other relevant information, starting with three uppercase letters followed by a forward slash and zero or more characters (including newline)
fplPatternString = `\((?P<category>[A-Z]{3})-(?P<number>[A-Z]+\d+)-(?P<indicator>[A-Z]{2})\n-(?P<aircraft>[A-Z]+\d+\/?[A-Z]?)\n?-(?P<surve>.*)\n?-(?P<dep>[A-Z]{4})(?P<dep_time>\d{4})\n?-(?P<speed>[A-Z]+\d+)(?P<level>[A-Z0-9]+)\s+(?P<route>(.|\n)+)\n-(?P<dest>[A-Z]{4})(?P<estt>\d{4})\s?(?P<alter>(\s[A-Z]{4})+)\n?-([A-Z]{3}\/(?:[A-Z]{4}\d{4}\s?)+)?(?P<other>(?m)[A-Z]{3}\/(.|\n)*)\)$`
cnlPatternString = `^\((?P<category>[A-Z]{3})-(?P<number>\w+\d+)-?(?P<dep>[A-Z]{4})?-?(?<arr>[A-Z]{4})\)$`
dlaPatternString = `^\((?P<category>[A-Z]{3})-(?P<number>\w+\d+)-?(?P<dep>[A-Z]{4})(?P<dep_time>\d{4})?-?(?<arr>[A-Z]{4})(?<arr_time>\d{4})?\)$`
)
// Initialize the bodyPatterns map
var bodyPatterns = map[string]BodyConfig{
"ARR": {
Patterns: []PatternConfig{
{
Pattern: arrPatternString,
Comments: "Pattern for ARR message",
Expression: regexp.MustCompile(arrPatternString),
},
},
},
"DEP": {
Patterns: []PatternConfig{
{
Pattern: depPatternString,
Comments: "Pattern for DEP message",
Expression: regexp.MustCompile(depPatternString),
},
},
},
"FPL": {
Patterns: []PatternConfig{
{
Pattern: fplPatternString,
Comments: "Pattern for FPL message",
Expression: regexp.MustCompile(fplPatternString),
},
},
},
"CNL": {
Patterns: []PatternConfig{
{
Pattern: cnlPatternString,
Comments: "Pattern for CNL message",
Expression: regexp.MustCompile(cnlPatternString),
},
},
},
"DLA": {
Patterns: []PatternConfig{
{
Pattern: dlaPatternString,
Comments: "Pattern for DLA message",
Expression: regexp.MustCompile(dlaPatternString),
},
},
},
}
func GetBodyPatterns() map[string]BodyConfig {
return bodyPatterns
}
func SetMyConfig(cfg *Config) {
MyConfig = cfg
}
func GetMyConfig() *Config {
if MyConfig == nil {
cfg, err := LoadConfig()
if err != nil {
fmt.Printf("error loading config: %v", err)
}
MyConfig = cfg
}
return MyConfig
}
// LoadConfig loads the configuration from a file
func LoadConfig() (*Config, error) {
// log := utils.Logger
env := os.Getenv("GO_ENV")
if env == "" {
env = "dev"
}
// log.Infof("Environment: %s", env)
viper.SetConfigType("toml")
viper.SetConfigName("config." + env)
viper.AddConfigPath("configs")
viper.SetEnvPrefix("tele")
viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
if err := viper.ReadInConfig(); err != nil {
errMsg := fmt.Sprintf("error reading config file for environment '%s': %v", env, err)
// log.Error(errMsg)
return nil, fmt.Errorf(errMsg)
}
// log.Debug("Config file read successfully")
// log.Debugf("Config keys: %v", viper.AllKeys())
var config Config
if err := viper.Unmarshal(&config); err != nil {
errMsg := fmt.Sprintf("unable to decode config into struct for environment '%s': %v", env, err)
// log.Error(errMsg)
return nil, fmt.Errorf(errMsg)
}
// loadLoggerConfig()
// log.Debugf("Config loaded: %+v", config)
// loadLoggerConfig()
return &config, nil
}
// ValidateConfig validates the loaded configuration
func ValidateConfig(cfg *Config) error {
// log := utils.Logger
if cfg.Nats.Client == "" {
return fmt.Errorf("nats client is required")
}
if cfg.Nats.URL == "" {
return fmt.Errorf("nats URL is required")
}
if cfg.Subscription.Topic == "" {
return fmt.Errorf("subscription topic is required")
}
// fmt.Println("config validation passed")
return nil
}