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