54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
package main
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import (
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"encoding/json"
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"fmt"
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"os"
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)
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type Config struct {
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Instrument string `json:"instrument"`
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Tuning []string `json:"tuning"`
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Frets int `json:"frets"`
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MaxFingers int `json:"max_fingers"`
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BaselineShift int `json:"baseline_shift"`
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RangeDown int `json:"range_down"`
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RangeUp int `json:"range_up"`
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}
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func LoadConfig(path string) (Config, error) {
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var cfg Config
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data, err := os.ReadFile(path)
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if err != nil {
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return cfg, err
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}
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err = json.Unmarshal(data, &cfg)
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return cfg, err
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}
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func SaveConfig(path string, cfg Config) error {
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data, err := json.MarshalIndent(cfg, "", " ")
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if err != nil {
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return err
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}
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return os.WriteFile(path, data, 0644)
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}
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func ValidateConfig(cfg Config) error {
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if len(cfg.Tuning) == 0 {
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return fmt.Errorf("tuning must have at least one string")
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}
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for _, note := range cfg.Tuning {
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if _, ok := NoteToSemitone[note]; !ok {
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return fmt.Errorf("invalid note: %s", note)
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}
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}
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if cfg.Frets < 1 || cfg.Frets > 24 {
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return fmt.Errorf("frets must be between 1 and 24")
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}
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if cfg.MaxFingers < 1 || cfg.MaxFingers > 6 {
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return fmt.Errorf("max fingers must be between 1 and 6")
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}
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return nil
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}
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