package netboxgo

import (
	"crypto/tls"
	"encoding/json"

	"io/ioutil"
	"net/http"
	"net/url"

	"time"

	"github.com/gorilla/schema"
	"github.com/pkg/errors"
)

type VirtualizationClustersCreate struct {
	ID   int    `json:"id"`
	Name string `json:"name"`
	Type struct {
		ID           int    `json:"id"`
		URL          string `json:"url"`
		Name         string `json:"name"`
		Slug         string `json:"slug"`
		ClusterCount int    `json:"cluster_count"`
	} `json:"type"`
	Group struct {
		ID           int    `json:"id"`
		URL          string `json:"url"`
		Name         string `json:"name"`
		Slug         string `json:"slug"`
		ClusterCount int    `json:"cluster_count"`
	} `json:"group"`
	Site struct {
		ID   int    `json:"id"`
		URL  string `json:"url"`
		Name string `json:"name"`
		Slug string `json:"slug"`
	} `json:"site"`
	Comments     string   `json:"comments"`
	Tags         []string `json:"tags"`
	CustomFields struct {
	} `json:"custom_fields"`
	Created             string    `json:"created"`
	LastUpdated         time.Time `json:"last_updated"`
	DeviceCount         int       `json:"device_count"`
	VirtualmachineCount int       `json:"virtualmachine_count"`
}

type VirtualizationClustersList struct {
	Count    int    `json:"count"`
	Next     string `json:"next"`
	Previous string `json:"previous"`
	Results  []struct {
		ID   int    `json:"id"`
		Name string `json:"name"`
		Type struct {
			ID           int    `json:"id"`
			URL          string `json:"url"`
			Name         string `json:"name"`
			Slug         string `json:"slug"`
			ClusterCount int    `json:"cluster_count"`
		} `json:"type"`
		Group struct {
			ID           int    `json:"id"`
			URL          string `json:"url"`
			Name         string `json:"name"`
			Slug         string `json:"slug"`
			ClusterCount int    `json:"cluster_count"`
		} `json:"group"`
		Site struct {
			ID   int    `json:"id"`
			URL  string `json:"url"`
			Name string `json:"name"`
			Slug string `json:"slug"`
		} `json:"site"`
		Comments     string   `json:"comments"`
		Tags         []string `json:"tags"`
		CustomFields struct {
		} `json:"custom_fields"`
		Created             string    `json:"created"`
		LastUpdated         time.Time `json:"last_updated"`
		DeviceCount         int       `json:"device_count"`
		VirtualmachineCount int       `json:"virtualmachine_count"`
	} `json:"results"`
}

type ClusterFilter struct {
	Offset int64 `schema:"offset,omitempty"`
	Limit  int64 `schema:"limit,omitempty"`

	//User specific filters
	Name    string `schema:"name,omitempty"`
	GroupID string `schema:"group_id,omitempty"`
	TypeID  string `schema:"type_id,omitempty"`
	Type    string `schema:"type,omitempty"`
	SiteID  string `schema:"site_id,omitempty"`
	Site    string `schema:"site,omitempty"`
	Tenant  string `schema:"tenant,omitempty"`
	IDIn    string `schema:"id__in,omitempty"`
	Q       string `schema:"q,omitempty"`
	Tag     string `schema:"tag,omitempty"`
}

// ListVirtualizationClusters returns Netbox virtualization_clusters
func (n *NetBox) ListClusters(i *VirtualizationClustersList, f *ClusterFilter) error {
	var encoder = schema.NewEncoder()

	form := url.Values{}
	err := encoder.Encode(f, form)
	if err != nil {
		return err
	}
	query := form.Encode()

	transport := &http.Transport{
		TLSClientConfig: &tls.Config{InsecureSkipVerify: n.InsecureSkipVerify},
	}
	timeout := time.Duration(60 * time.Second)
	client := &http.Client{
		Timeout:   timeout,
		Transport: transport,
	}
	request, err := http.NewRequest("GET", n.RootURL+"/api/virtualization/clusters/?"+query, nil)
	if err != nil {
		return err
	}
	request.Header.Add("Accept", "application/json")
	request.Header.Add("Authorization", " Token "+n.Token)
	response, err := client.Do(request)
	if err != nil {
		return err
	}

	if response.StatusCode != http.StatusOK {
		return errors.Errorf("Error: response was: %d should be %d\n", response.StatusCode, http.StatusOK)
	}

	data, err := ioutil.ReadAll(response.Body)
	if err != nil {
		return err
	}

	err = response.Body.Close()
	if err != nil {
		return err
	}

	err = json.Unmarshal(data, &i)
	if err != nil {
		return err
	}
	return nil
}