package cmd

import (
	"github.com/micro/go-micro/broker"
	"github.com/micro/go-micro/client"
	"github.com/micro/go-micro/registry"
	"github.com/micro/go-micro/selector"
	"github.com/micro/go-micro/server"
	"github.com/micro/go-micro/transport"

	"golang.org/x/net/context"
)

type Options struct {
	// For the Command Line itself
	Name        string
	Description string
	Version     string

	// We need pointers to things so we can swap them out if needed.
	Broker    *broker.Broker
	Registry  *registry.Registry
	Selector  *selector.Selector
	Transport *transport.Transport
	Client    *client.Client
	Server    *server.Server

	Brokers    map[string]func([]string, ...broker.Option) broker.Broker
	Registries map[string]func([]string, ...registry.Option) registry.Registry
	Selectors  map[string]func(...selector.Option) selector.Selector
	Transports map[string]func([]string, ...transport.Option) transport.Transport

	// Other options for implementations of the interface
	// can be stored in a context
	Context context.Context
}

// Command line Name
func Name(n string) Option {
	return func(o *Options) {
		o.Name = n
	}
}

// Command line Description
func Description(d string) Option {
	return func(o *Options) {
		o.Description = d
	}
}

// Command line Version
func Version(v string) Option {
	return func(o *Options) {
		o.Version = v
	}
}

func Broker(b *broker.Broker) Option {
	return func(o *Options) {
		o.Broker = b
	}
}

func Selector(s *selector.Selector) Option {
	return func(o *Options) {
		o.Selector = s
	}
}

func Registry(r *registry.Registry) Option {
	return func(o *Options) {
		o.Registry = r
	}
}

func Transport(t *transport.Transport) Option {
	return func(o *Options) {
		o.Transport = t
	}
}

func Client(c *client.Client) Option {
	return func(o *Options) {
		o.Client = c
	}
}

func Server(s *server.Server) Option {
	return func(o *Options) {
		o.Server = s
	}
}

// New broker func
func NewBroker(name string, b func([]string, ...broker.Option) broker.Broker) Option {
	return func(o *Options) {
		o.Brokers[name] = b
	}
}

// New registry func
func NewRegistry(name string, r func([]string, ...registry.Option) registry.Registry) Option {
	return func(o *Options) {
		o.Registries[name] = r
	}
}

// New selector func
func NewSelector(name string, s func(...selector.Option) selector.Selector) Option {
	return func(o *Options) {
		o.Selectors[name] = s
	}
}

// New transport func
func NewTransport(name string, t func([]string, ...transport.Option) transport.Transport) Option {
	return func(o *Options) {
		o.Transports[name] = t
	}
}