First commit

internal/config/config.go

@@ -0,0 +1,86 @@
+package config
+
+import (
+	"encoding/json"
+	"fmt"
+	"os"
+	"time"
+)
+
+const defaultFile = "bot_config.json"
+
+// Config holds bot configuration settings
+type Config struct {
+	SummaryTime    string `json:"summary_time"`    // HH:MM format
+	SummaryChannel string `json:"summary_channel"` // Channel ID
+	Timezone       string `json:"timezone"`
+}
+
+// Manager handles configuration persistence
+type Manager struct {
+	config   Config
+	filename string
+}
+
+// New creates a new config manager
+func New(filename string) (*Manager, error) {
+	if filename == "" {
+		filename = defaultFile
+	}
+
+	cm := &Manager{
+		filename: filename,
+		config: Config{
+			SummaryTime:    "09:00",
+			SummaryChannel: "",
+			Timezone:       "America/New_York",
+		},
+	}
+
+	if err := cm.load(); err != nil {
+		if !os.IsNotExist(err) {
+			return nil, fmt.Errorf("failed to load config: %w", err)
+		}
+	}
+
+	return cm, nil
+}
+
+func (cm *Manager) load() error {
+	data, err := os.ReadFile(cm.filename)
+	if err != nil {
+		return err
+	}
+
+	return json.Unmarshal(data, &cm.config)
+}
+
+func (cm *Manager) save() error {
+	data, err := json.MarshalIndent(cm.config, "", "  ")
+	if err != nil {
+		return fmt.Errorf("failed to marshal config: %w", err)
+	}
+
+	return os.WriteFile(cm.filename, data, 0644)
+}
+
+// SetSummaryTime sets the time for daily summaries
+func (cm *Manager) SetSummaryTime(timeStr string) error {
+	if _, err := time.Parse("15:04", timeStr); err != nil {
+		return fmt.Errorf("invalid time format, use HH:MM: %w", err)
+	}
+
+	cm.config.SummaryTime = timeStr
+	return cm.save()
+}
+
+// SetSummaryChannel sets the channel for daily summaries
+func (cm *Manager) SetSummaryChannel(channelID string) error {
+	cm.config.SummaryChannel = channelID
+	return cm.save()
+}
+
+// Get returns the current configuration
+func (cm *Manager) Get() Config {
+	return cm.config
+}