package config

import (
	"context"

	"github.com/owncloud/ocis/v2/ocis-pkg/shared"
)

type Config struct {
	Commons *shared.Commons `yaml:"-"` // don't use this directly as configuration for a service
	Service Service         `yaml:"-"`
	Tracing *Tracing        `yaml:"tracing"`
	Log     *Log            `yaml:"log"`
	Debug   Debug           `yaml:"debug"`

	GRPC   GRPCConfig `yaml:"grpc"`
	HTTP   HTTPConfig `yaml:"http"`
	Events Events     `yaml:"events"`

	TokenManager     *TokenManager `yaml:"token_manager"`
	Reva             *Reva         `yaml:"reva"`
	SystemUserID     string        `yaml:"system_user_id" env:"OCIS_SYSTEM_USER_ID" desc:"ID of the oCIS storage-system system user. Admins need to set the ID for the STORAGE-SYSTEM system user in this config option which is then used to reference the user. Any reasonable long string is possible, preferably this would be an UUIDv4 format."`
	SystemUserAPIKey string        `yaml:"system_user_api_key" env:"OCIS_SYSTEM_USER_API_KEY" desc:"API key for the STORAGE-SYSTEM system user."`

	SkipUserGroupsInToken bool `yaml:"skip_user_groups_in_token" env:"STORAGE_SYSTEM_SKIP_USER_GROUPS_IN_TOKEN" desc:"Disables the loading of user's group memberships from the reva access token."`

	Driver        string  `yaml:"driver" env:"STORAGE_SYSTEM_DRIVER" desc:"The driver which should be used by the service."`
	Drivers       Drivers `yaml:"drivers"`
	DataServerURL string  `yaml:"data_server_url" env:"STORAGE_SYSTEM_DATA_SERVER_URL" desc:"URL of the data server, needs to be reachable by other services using this service."`

	Supervised bool            `yaml:"-"`
	Context    context.Context `yaml:"-"`
}
type Tracing struct {
	Enabled   bool   `yaml:"enabled" env:"OCIS_TRACING_ENABLED;STORAGE_SYSTEM_TRACING_ENABLED" desc:"Activates tracing."`
	Type      string `yaml:"type" env:"OCIS_TRACING_TYPE;STORAGE_SYSTEM_TRACING_TYPE" desc:"The type of tracing. Defaults to \"\", which is the same as \"jaeger\". Allowed tracing types are \"jaeger\" and \"\" as of now."`
	Endpoint  string `yaml:"endpoint" env:"OCIS_TRACING_ENDPOINT;STORAGE_SYSTEM_TRACING_ENDPOINT" desc:"The endpoint of the tracing agent."`
	Collector string `yaml:"collector" env:"OCIS_TRACING_COLLECTOR;STORAGE_SYSTEM_TRACING_COLLECTOR" desc:"The HTTP endpoint for sending spans directly to a collector, i.e. http://jaeger-collector:14268/api/traces. Only used if the tracing endpoint is unset."`
}

type Log struct {
	Level  string `yaml:"level" env:"OCIS_LOG_LEVEL;STORAGE_SYSTEM_LOG_LEVEL" desc:"The log level. Valid values are: \"panic\", \"fatal\", \"error\", \"warn\", \"info\", \"debug\", \"trace\"."`
	Pretty bool   `yaml:"pretty" env:"OCIS_LOG_PRETTY;STORAGE_SYSTEM_LOG_PRETTY" desc:"Activates pretty log output."`
	Color  bool   `yaml:"color" env:"OCIS_LOG_COLOR;STORAGE_SYSTEM_LOG_COLOR" desc:"Activates colorized log output."`
	File   string `yaml:"file" env:"OCIS_LOG_FILE;STORAGE_SYSTEM_LOG_FILE" desc:"The path to the log file. Activates logging to this file if set."`
}

type Service struct {
	Name string `yaml:"-"`
}

type Debug struct {
	Addr   string `yaml:"addr" env:"STORAGE_SYSTEM_DEBUG_ADDR" desc:"Bind address of the debug server, where metrics, health, config and debug endpoints will be exposed."`
	Token  string `yaml:"token" env:"STORAGE_SYSTEM_DEBUG_TOKEN" desc:"Token to secure the metrics endpoint"`
	Pprof  bool   `yaml:"pprof" env:"STORAGE_SYSTEM_DEBUG_PPROF" desc:"Enables pprof, which can be used for profiling"`
	Zpages bool   `yaml:"zpages" env:"STORAGE_SYSTEM_DEBUG_ZPAGES" desc:"Enables zpages, which can be used for collecting and viewing in-memory traces."`
}

type GRPCConfig struct {
	Addr      string `yaml:"addr" env:"STORAGE_SYSTEM_GRPC_ADDR" desc:"The bind address of the GRPC service."`
	Namespace string `yaml:"-"`
	Protocol  string `yaml:"protocol" env:"STORAGE_SYSTEM_GRPC_PROTOCOL" desc:"The transport protocol of the GPRC service."`
}

type HTTPConfig struct {
	Addr      string `yaml:"addr" env:"STORAGE_SYSTEM_HTTP_ADDR" desc:"The bind address of the HTTP service."`
	Namespace string `yaml:"-"`
	Protocol  string `yaml:"protocol" env:"STORAGE_SYSTEM_HTTP_PROTOCOL" desc:"The transport protocol of the HTTP service."`
}

type Drivers struct {
	OCIS OCISDriver `yaml:"ocis"`
}

type OCISDriver struct {
	// Root is the absolute path to the location of the data
	Root string `yaml:"root" env:"STORAGE_SYSTEM_OCIS_ROOT" desc:"Path for the directory where the STORAGE-SYSTEM service stores it's persistent data."`
}

type Events struct {
	Addr      string `yaml:"endpoint" env:"STORAGE_SYSTEM_EVENTS_ENDPOINT" desc:"The address of the event system. The event system is the message queuing service. It is used as message broker for the microservice architecture.`
	ClusterID string `yaml:"cluster" env:"STORAGE_SYSTEM_EVENTS_CLUSTER" desc:"The clusterID of the event system. The event system is the message queuing service. It is used as message broker for the microservice architecture. Mandatory when using NATS as event system."`
}
