1 files changed, 90 insertions, 0 deletions
diff --git a/config/config.go b/config/config.go
new file mode 100644
index 0000000..f57b5cd
--- /dev/null
+++ b/config/config.go
@@ -0,0 +1,90 @@
+package config
+
+import (
+	"log/slog"
+	"os"
+
+	"github.com/go-playground/validator/v10"
+	"gopkg.in/yaml.v3"
+)
+
+type Config struct {
+	LogLevel           slog.Level                `json:"LogLevel" yaml:"logLevel" validate:"required"`
+	BlogPages          BlogPagesConfig           `json:"BlogPages" yaml:"blogPages" validate:"required"`
+	FactGiver          FactGiverConfig           `json:"FactGiver" yaml:"factGiver" validate:"required"`
+	LocalePath         string                    `json:"LocalePath" yaml:"localePath" validate:"required,filepath"`
+	AvailableLanguages []AvailableLanguageConfig `json:"AvailableLanguages" yaml:"availableLanguages" validate:"required"`
+	Auth               AuthConfig                `json:"Auth" yaml:"auth" validate:"required"`
+}
+
+type BlogPagesConfig struct {
+	Storage StorageConfig `json:"Storage" yaml:"storage" validate:"required"`
+}
+
+type StorageConfig struct {
+	Type   string   `json:"type" yaml:"type"`
+	Config B2Config `json:"Config" yaml:"config" validate:"required"`
+}
+
+type B2Config struct {
+	BucketName     string `json:"BucketName" yaml:"bucketName" validate:"required,min=1"`
+	Region         string `json:"Region" yaml:"region" validate:"required,min=1"`
+	Prefix         string `json:"Prefix" yaml:"prefix"`
+	KeyID          string `json:"KeyID" yaml:"keyID"`
+	ApplicationKey string `json:"ApplicationKey" yaml:"applicationKey"`
+}
+
+type FactGiverConfig struct {
+	Storage       StorageConfig `json:"Storage" yaml:"storage" validate:"required"`
+	FactsFileName string        `json:"FactsFileName" yaml:"factsFileName" validate:"required"`
+}
+
+type AvailableLanguageConfig struct {
+	Name    string `json:"Name" yaml:"name" validate:"required"`
+	Alt     string `json:"Alt" yaml:"alt"`
+	Flag    string `json:"Flag" yaml:"flag" validate:"url"`
+	LocFile string `json:"LocFile" yaml:"locFile" validate:"required,filepath"`
+}
+
+type AuthConfig struct {
+	Salt string   `json:"Salt" yaml:"salt" validate:"required"`
+	Db   DbConfig `json:"Db" yaml:"db" validate:"required"`
+}
+
+type DbConfig struct {
+	Type string        `json:"Type" yaml:"type" validate:"required,oneof=sqlite3"`
+	Cfg  Sqlite3Config `json:"Config" yaml:"config"`
+}
+
+type Sqlite3Config struct {
+	DSN string `json:"DSN" yaml:"dsn" validate:"required"`
+}
+
+func LoadConfig(path string, config *Config) error {
+	fileBytes, err := os.ReadFile(path)
+	if err != nil {
+		return err
+	}
+
+	expandedFileBytes := []byte(os.ExpandEnv(string(fileBytes)))
+
+	if err = yaml.Unmarshal(expandedFileBytes, config); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func InitConfig(path string) (*Config, error) {
+	config := &Config{}
+	if err := LoadConfig(path, config); err != nil {
+		return nil, err
+	}
+
+	validate := validator.New(validator.WithRequiredStructEnabled())
+	if err := validate.Struct(config); err != nil {
+		return nil, err
+	}
+
+	return config, nil
+}