service

type ModelConfigProvider interface {
	// ConfigSchema returns extra config attributes specific
	// to this provider only.
	ConfigSchema() schema.Fields

	// Schema returns the configuration schema for an environment.
	Schema() configschema.Fields
}

type ModelConfigProviderFunc func(ctx context.Context, cloudType string) (ModelConfigProvider, error)

type ModelDefaultsProvider interface {
	// ModelDefaults will return the default config values to be used for a model
	// and its config.
	ModelDefaults(context.Context) (modeldefaults.Defaults, error)
}

type ProviderService struct {
	// contains filtered or unexported fields
}

type ProviderState interface {
	// AllKeysQuery returns a SQL statement that will return all known model config
	// keys.
	AllKeysQuery() string

	// ModelConfig returns the currently set config for the model.
	ModelConfig(context.Context) (map[string]string, error)

	// NamespacesForWatchModelConfig returns the namespace identifiers used for
	// watching model configuration changes.
	NamespacesForWatchModelConfig() []string

	// GetModelAgentVersionAndStream returns the current model's set agent
	// version and stream.
	GetModelAgentVersionAndStream(context.Context) (ver string, stream string, err error)
}

type Service struct {
	// contains filtered or unexported fields
}

type SpaceValidatorState interface {
	// SpaceExists checks if the space identified by the given space name exists.
	SpaceExists(ctx context.Context, spaceName string) (bool, error)
}

type State interface {
	ProviderState
	SpaceValidatorState

	// ModelConfigHasAttributes returns the set of attributes that model config
	// currently has set out of the list supplied.
	ModelConfigHasAttributes(context.Context, []string) ([]string, error)

	// SetModelConfig is responsible for setting the current model config and
	// overwriting all previously set values even if the config supplied is
	// empty or nil.
	SetModelConfig(context.Context, map[string]string) error

	// UpdateModelConfig is responsible for both inserting, updating and
	// removing model config values for the current model.
	UpdateModelConfig(context.Context, map[string]string, []string) error
}

type WatchableProviderService struct {
	ProviderService
	// contains filtered or unexported fields
}

type WatchableService struct {
	Service
	// contains filtered or unexported fields
}

type WatcherFactory interface {
	// NewNamespaceMapperWatcher returns a new watcher that receives changes
	// from the input base watcher's db/queue. Change-log events will be emitted
	// only if the filter accepts them, and dispatching the notifications via
	// the Changes channel, once the mapper has processed them. Filtering of
	// values is done first by the filter, and then by the mapper. Based on the
	// mapper's logic a subset of them (or none) may be emitted. A filter option
	// is required, though additional filter options can be provided.
	NewNamespaceMapperWatcher(
		ctx context.Context,
		initialStateQuery eventsource.NamespaceQuery,
		summary string,
		mapper eventsource.Mapper,
		filterOption eventsource.FilterOption, filterOptions ...eventsource.FilterOption,
	) (watcher.StringsWatcher, error)
}