package main

import (
	"bytes"
	"errors"
	"io"
	"io/ioutil"
	"strings"

	"github.com/samalba/dockerclient"
)

var errNop = errors.New("Operation not supported")

type mockClient struct{}

// CreateContainer creates a container.
func (c *mockClient) CreateContainer(config *dockerclient.ContainerConfig, name string) (string, error) {
	return config.Image, nil
}

// InspectContainer returns container details.
func (c *mockClient) InspectContainer(id string) (*dockerclient.ContainerInfo, error) {
	info := dockerclient.ContainerInfo{}
	return &info, nil
}

// ContainerLogs returns an io.ReadCloser for reading the
// container logs.
func (c *mockClient) ContainerLogs(id string, options *dockerclient.LogOptions) (io.ReadCloser, error) {
	var buf bytes.Buffer
	if strings.HasPrefix(id, "plugins/drone-git") {
		buf.WriteString(out1)
	}
	if strings.HasPrefix(id, "golang") {
		buf.WriteString(out2)
	}
	return ioutil.NopCloser(&buf), nil
}

// StartContainer starts a container. The mockClient volume
// is automatically linked. The mockClient network is linked
// iff a network mode is not already specified.
func (c *mockClient) StartContainer(id string, config *dockerclient.HostConfig) error {
	return nil
}

// StopContainer stops a container.
func (c *mockClient) StopContainer(id string, timeout int) error {
	return nil
}

// PullImage pulls an image.
func (c *mockClient) PullImage(name string, auth *dockerclient.AuthConfig) error {
	return nil
}

// RemoveContainer removes a container.
func (c *mockClient) RemoveContainer(id string, force, volumes bool) error {
	return nil
}

// KillContainer kills a running container.
func (c *mockClient) KillContainer(id, signal string) error {
	return nil
}

//
// methods below are not implemented
//

// Info returns a no-op error
func (c *mockClient) Info() (*dockerclient.Info, error) {
	return nil, errNop
}

// ListContainers returns a no-op error
func (c *mockClient) ListContainers(all bool, size bool, filters string) ([]dockerclient.Container, error) {
	return nil, errNop
}

// RestartContainer returns a no-op error
func (c *mockClient) RestartContainer(id string, timeout int) error {
	return errNop
}

// StartMonitorEvents returns a no-op error
func (c *mockClient) StartMonitorEvents(cb dockerclient.Callback, ec chan error, args ...interface{}) {

}

// StopAllMonitorEvents returns a no-op error
func (c *mockClient) StopAllMonitorEvents() {

}

// Version returns a no-op error
func (c *mockClient) Version() (*dockerclient.Version, error) {
	return nil, errNop
}

// ListImages returns a no-op error
func (c *mockClient) ListImages() ([]*dockerclient.Image, error) {
	return nil, errNop
}

// RemoveImage returns a no-op error
func (c *mockClient) RemoveImage(name string) error {
	return errNop
}

// PauseContainer returns a no-op error
func (c *mockClient) PauseContainer(name string) error {
	return errNop
}

// UnpauseContainer returns a no-op error
func (c *mockClient) UnpauseContainer(name string) error {
	return errNop
}

// Exec returns a no-op error
func (c *mockClient) Exec(config *dockerclient.ExecConfig) (string, error) {
	var empty string
	return empty, errNop
}

var out1 = `$ git clone --depth=50 git://github.com/drone/drone.git /drone/src/github.com/drone/drone`
var out2 = `$ go test -short

  Filter
    ✓ Should remove steps that don't match condition


 1 tests complete (0 ms)

  Inject params
    ✓ Should replace vars with $$
    ✓ Should not replace vars with single $
    ✓ Should not replace vars in nil map


 3 tests complete (0 ms)
PASS
ok  	github.com/drone/drone-cli/common/config	0.006s
`