88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
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package main
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import (
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"log"
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"os"
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"os/user"
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"path/filepath"
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"gopkg.in/yaml.v2"
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)
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// Configuration Structure
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type Config struct {
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// Relays: Different relays available.
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Relays []*Relay `yaml:"relays"`
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}
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// ReadConfig Read the configuration file
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func (a *App) ReadConfig() {
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usr, err := user.Current()
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if err != nil {
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log.Fatal(err)
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}
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// Configuration paths.
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localConfig, _ := filepath.Abs("./config.yaml")
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homeDirConfig := usr.HomeDir + "/.config/mqtt-osc-bridge/config.yaml"
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etcConfig := "/etc/mqtt-osc-bridge/config.yaml"
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// Determine which configuration to use.
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var configFile string
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if _, err := os.Stat(app.flags.ConfigPath); err == nil && app.flags.ConfigPath != "" {
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configFile = app.flags.ConfigPath
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} else if _, err := os.Stat(localConfig); err == nil {
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configFile = localConfig
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} else if _, err := os.Stat(homeDirConfig); err == nil {
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configFile = homeDirConfig
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} else if _, err := os.Stat(etcConfig); err == nil {
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configFile = etcConfig
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} else {
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log.Fatal("Unable to find a configuration file.")
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}
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app.config = new(Config)
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yamlFile, err := os.ReadFile(configFile)
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if err != nil {
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log.Fatalf("Error reading YAML file: %s\n", err)
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}
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err = yaml.Unmarshal(yamlFile, &app.config)
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if err != nil {
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log.Fatalf("Error parsing YAML file: %s\n", err)
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}
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if len(app.config.Relays) == 0 {
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log.Fatal("No relays defined in the configuration file.")
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}
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for _, relay := range app.config.Relays {
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if relay.OscBindAddr != "" && relay.OscBindPort == 0 {
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relay.OscBindPort = relay.OscPort
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}
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}
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for i, relay := range app.config.Relays {
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if relay.MqttHost == "" || relay.MqttPort == 0 {
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log.Fatalf("Relay %d: MQTT host and port are required configurations.", i)
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}
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if relay.MqttTopic == "" {
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log.Fatalf("Relay %d: MQTT topic is a required configuration.", i)
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}
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if relay.OscBindAddr == "" && relay.OscHost == "" {
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log.Fatalf("Relay %d: You must define either a bind address or an OSC host in the configuration.", i)
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}
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for b, relay2 := range app.config.Relays {
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if b != i {
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if relay.MqttTopic == relay2.MqttTopic {
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log.Fatalf("Relay %d: MQTT topic cannot exist on 2 different relays.", i)
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}
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if relay.OscBindPort == relay2.OscBindPort {
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log.Fatalf("Relay %d: Cannot use the same OSC bind port on 2 different relays.", i)
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}
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}
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}
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}
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}
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