package docker

import (
	"context"
	"github.com/docker/docker/api/types"
	"github.com/docker/docker/api/types/filters"
	"github.com/docker/docker/client"
)

type Client struct {
	cli *client.Client
}

func NewClient() (Client, error) {
	cli, err := client.NewClientWithOpts(client.FromEnv, client.WithAPIVersionNegotiation())
	if err != nil {
		return Client{}, err
	}

	return Client{
		cli: cli,
	}, nil
}

func (c Client) ListAllContainers() ([]types.Container, error) {
	var options types.ContainerListOptions
	containers, err := c.cli.ContainerList(context.Background(), options)
	if err != nil {
		return nil, err
	}
	return containers, nil
}

func (c Client) ListContainersByName(names []string) ([]types.Container, error) {
	var options types.ContainerListOptions
	options.All = true
	if len(names) > 0 {
		var array []filters.KeyValuePair
		for _, n := range names {
			array = append(array, filters.Arg("name", n))
		}
		options.Filters = filters.NewArgs(array...)
	}
	containers, err := c.cli.ContainerList(context.Background(), options)
	if err != nil {
		return nil, err
	}
	return containers, nil
}

func (c Client) CreateNetwork(name string) error {
	_, err := c.cli.NetworkCreate(context.Background(), name, types.NetworkCreate{
		Driver: "bridge",
	})
	return err
}

func (c Client) NetworkExist(name string) bool {
	var options types.NetworkListOptions
	var array []filters.KeyValuePair
	array = append(array, filters.Arg("name", name))
	networks, err := c.cli.NetworkList(context.Background(), options)
	if err != nil {
		return false
	}

	return len(networks) > 0
}