devtool

type App struct {
	Stdin     io.Reader
	Stdout    io.Writer
	Stderr    io.Writer
	Resolve   func(context.Context) (Environment, error)
	Database  DatabaseManager
	Ports     PortAllocator
	Processes ProcessManager
}

type DatabaseCloneResult struct {
	Replaced bool
}

type DatabaseManager interface {
	Start(context.Context, Environment) error
	RequireRunning(context.Context, Environment) error
	Exists(context.Context, Environment, string) (bool, error)
	Create(context.Context, Environment, string) error
	Clone(context.Context, Environment, string, string) (DatabaseCloneResult, error)
	Reset(context.Context, Environment, string) error
	Migrate(context.Context, Environment, string) error
	Rollback(context.Context, Environment, string) error
}

type DockerDatabase struct{}

type Environment struct {
	MainRoot        string
	CurrentRoot     string
	MainDatabase    string
	CurrentDatabase string
	PostgresPort    int
	ProjectName     string
}

type FilePortAllocator struct {
	LockRoot string
}

type OSProcesses struct{}

type PortAllocator interface {
	Acquire(preferred int) (PortLease, error)
}

type PortLease interface {
	Port() int
	Close() error
}

type ProcessManager interface {
	Start(context.Context, Environment, string, int, int) error
	E2E(context.Context, Environment, string, int) error
}