init: initial commit

internal/config/config.go

@@ -0,0 +1,48 @@
+package config
+
+import (
+	"fmt"
+
+	"github.com/spf13/viper"
+)
+
+type DatabaseConfig struct {
+	DSN string `mapstructure:"dsn"`
+}
+
+type DeepSeekConfig struct {
+	APIKey         string `mapstructure:"api_key"`
+	Model          string `mapstructure:"model"`
+	TimeoutSeconds int    `mapstructure:"timeout_seconds"`
+	MaxTokens      int    `mapstructure:"max_tokens"`
+}
+
+type AppConfig struct {
+	Database DatabaseConfig `mapstructure:"database"`
+	DeepSeek DeepSeekConfig `mapstructure:"deepseek"`
+}
+
+var Global AppConfig
+
+func Load() error {
+	viper.SetConfigName("config")
+	viper.SetConfigType("yaml")
+	viper.AddConfigPath(".")
+	viper.AddConfigPath("$HOME/.ai-expert-sidebar")
+
+	// Defaults
+	viper.SetDefault("database.dsn",
+		"root:password@tcp(127.0.0.1:3306)/ai_expert?charset=utf8mb4&parseTime=True&loc=Local")
+	viper.SetDefault("deepseek.api_key", "")
+	viper.SetDefault("deepseek.model", "deepseek-chat")
+	viper.SetDefault("deepseek.timeout_seconds", 60)
+	viper.SetDefault("deepseek.max_tokens", 1024)
+
+	if err := viper.ReadInConfig(); err != nil {
+		if _, ok := err.(viper.ConfigFileNotFoundError); !ok {
+			return fmt.Errorf("config read error: %w", err)
+		}
+	}
+
+	return viper.Unmarshal(&Global)
+}