package defaults

import (
	"github.com/qsfera/server/pkg/shared"
	"github.com/qsfera/server/pkg/structs"
	"github.com/qsfera/server/services/app-provider/pkg/config"
)

// FullDefaultConfig returns a fully initialized default configuration
func FullDefaultConfig() *config.Config {
	cfg := DefaultConfig()
	EnsureDefaults(cfg)
	Sanitize(cfg)
	return cfg
}

// DefaultConfig returns a basic default configuration
func DefaultConfig() *config.Config {
	return &config.Config{
		Debug: config.Debug{
			Addr:   "127.0.0.1:9165",
			Token:  "",
			Pprof:  false,
			Zpages: false,
		},
		GRPC: config.GRPCConfig{
			Addr:      "127.0.0.1:9164",
			Namespace: "qsfera.api",
			Protocol:  "tcp",
		},
		Service: config.Service{
			Name: "app-provider",
		},
		Reva:         shared.DefaultRevaConfig(),
		ExternalAddr: "qsfera.api.app-provider",
		Driver:       "",
		Drivers: config.Drivers{
			WOPI: config.WOPIDriver{
				WopiFolderURLBaseURL:      "https://localhost:9200/",
				WopiFolderURLPathTemplate: "/f/{{.ResourceID}}",
			},
		},
	}
}

// EnsureDefaults adds default values to the configuration if they are not set yet
func EnsureDefaults(cfg *config.Config) {
	if cfg.LogLevel == "" {
		cfg.LogLevel = "error"
	}

	if cfg.Reva == nil && cfg.Commons != nil {
		cfg.Reva = structs.CopyOrZeroValue(cfg.Commons.Reva)
	}

	if cfg.TokenManager == nil && cfg.Commons != nil && cfg.Commons.TokenManager != nil {
		cfg.TokenManager = &config.TokenManager{
			JWTSecret: cfg.Commons.TokenManager.JWTSecret,
		}
	} else if cfg.TokenManager == nil {
		cfg.TokenManager = &config.TokenManager{}
	}

	if cfg.GRPC.TLS == nil && cfg.Commons != nil {
		cfg.GRPC.TLS = structs.CopyOrZeroValue(cfg.Commons.GRPCServiceTLS)
	}
}

// Sanitize sanitized the configuration
func Sanitize(cfg *config.Config) {
	// nothing to sanitize here atm
}

// Validate checks that all required configs are set. If a required config value
// is missing an error will be returned.
func Validate(cfg *config.Config) error {
	if cfg.TokenManager.JWTSecret == "" {
		return shared.MissingJWTTokenError(cfg.Service.Name)
	}

	return nil
}