package audit

import (
	"context"
	"strconv"

	"udeServer/internal/model"
)

// FileConfigManager holds the MinIO connection settings loaded from t_config.
type FileConfigManager struct {
	endpoint  string
	bucket    string
	accessKey string
	secretKey string
	useSSL    bool
}

// LogConfigManager holds the audit logging settings loaded from t_config.
type LogConfigManager struct {
	LogRecordLevel   string
	ArchiveThreshold int64
	HmacSecret       string
}

// Reload reads the whole t_config table and extracts the audit-related
// settings. It never fails hard: a missing table or empty rows simply
// yields zero-valued managers (the callers degrade gracefully).
func Reload(configModel model.TConfigModel) (fileConfig FileConfigManager, logConfig LogConfigManager) {
	configList, err := configModel.FindAll(context.Background())
	if err != nil {
		return
	}

	var useSSLStr string
	handlers := map[string]func(string){
		ItemFileEndpoint:   func(v string) { fileConfig.endpoint = v },
		ItemFileBucket:     func(v string) { fileConfig.bucket = v },
		ItemFileAccessKey:  func(v string) { fileConfig.accessKey = v },
		ItemFileSecretKey:  func(v string) { fileConfig.secretKey = v },
		ItemFileUseSsl:     func(v string) { useSSLStr = v },
		ItemLogRecordLevel: func(v string) { logConfig.LogRecordLevel = v },
		ItemArchiveThresh: func(v string) {
			count, _ := strconv.ParseInt(v, 10, 64)
			logConfig.ArchiveThreshold = count
		},
		ItemLogHmacSecret: func(v string) { logConfig.HmacSecret = v },
	}

	for _, v := range configList {
		if handler, ok := handlers[v.ConfigItem]; ok {
			handler(v.ConfigValue)
		}
	}
	fileConfig.useSSL = useSSLStr == "1"
	return
}

// GetGlobalConfig reloads the dynamic configuration and (re)builds the
// global MinIO client when needed. It returns the currently loaded client
// (nil when configuration is incomplete/failed) and the log settings.
func GetGlobalConfig(configModel model.TConfigModel) (*MinioClient, *LogConfigManager) {
	fileConfig, logConfig := Reload(configModel)
	ReloadMinioClient(fileConfig)

	return GetMinioClient(), &LogConfigManager{
		LogRecordLevel:   logConfig.LogRecordLevel,
		ArchiveThreshold: logConfig.ArchiveThreshold,
		HmacSecret:       logConfig.HmacSecret,
	}
}