package builds

import (
	"encoding/json"
	"errors"
	"fmt"

	"github.com/deis/deis/client-go/controller/api"
	"github.com/deis/deis/client-go/controller/client"
)

// List lists an app's builds.
func List(c *client.Client, appID string) ([]api.Build, error) {
	u := fmt.Sprintf("/v1/apps/%s/builds/", appID)
	body, status, err := c.BasicRequest("GET", u, nil)

	if err != nil {
		return []api.Build{}, err
	}

	if status != 200 {
		return []api.Build{}, errors.New(body)
	}

	builds := api.Builds{}
	if err = json.Unmarshal([]byte(body), &builds); err != nil {
		return []api.Build{}, err
	}

	return builds.Builds, nil
}

// New creates a build for an app.
func New(c *client.Client, appID string, image string,
	procfile map[string]string) (api.Build, error) {

	u := fmt.Sprintf("/v1/apps/%s/builds/", appID)

	req := api.CreateBuildRequest{Image: image, Procfile: procfile}

	body, err := json.Marshal(req)

	if err != nil {
		return api.Build{}, err
	}

	resBody, status, err := c.BasicRequest("POST", u, body)

	if err != nil {
		return api.Build{}, err
	}

	if status != 201 {
		return api.Build{}, errors.New(resBody)
	}

	build := api.Build{}
	if err = json.Unmarshal([]byte(resBody), &build); err != nil {
		return api.Build{}, err
	}

	return build, nil
}