package netboxgo

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

	//	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
	"time"

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

type SiteGroupsList struct {
	Count    int             `json:"count"`
	Next     string          `json:"next"`
	Previous string          `json:"previous"`
	Results  []SiteGroupList `json:"results"`
}

type SiteGroupList struct {
	ID      int    `json:"id"`
	URL     string `json:"url"`
	Display string `json:"display"`
	Name    string `json:"name"`
	Slug    string `json:"slug"`
	Parent  struct {
		ID        int    `json:"id"`
		URL       string `json:"url"`
		Display   string `json:"display"`
		Name      string `json:"name"`
		Slug      string `json:"slug"`
		SiteCount int    `json:"site_count"`
		Depth     int    `json:"_depth"`
	} `json:"parent"`
	Description  string `json:"description"`
	CustomFields struct {
	} `json:"custom_fields"`
	Created     string    `json:"created"`
	LastUpdated time.Time `json:"last_updated"`
	SiteCount   int       `json:"site_count"`
	Depth       int       `json:"_depth"`
}

// SiteFilter is used to filter out returned object from Netbox API tenancy_tenants_list
type SiteGroupFilter struct {
	Offset int64 `schema:"offset,omitempty"`
	Limit  int64 `schema:"limit,omitempty"`

	// User specific filters
	Name        string `schema:"name,omitempty"`
	ID          string `schema:"id,omitempty"`
	Slug        string `schema:"slug,omitempty"`
	Description string `schema:"description,omitempty"`
	Group       string `schema:"group,omitempty"`
	GroupID     string `schema:"group_id,omitempty"`
	Parent      string `schema:"parent,omitempty"`
	IDIn        string `schema:"id__in,omitempty"`
	Q           string `schema:"q,omitempty"`
	Tag         string `schema:"tag,omitempty"`
}

// ListSitegroups returns Netbox tenancy_tenants_list
func (n *NetBox) ListSiteGroups(i *SiteGroupsList, f *SiteFilter) error {
	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/dcim/sites/?"+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
}

// GetSiteGroup returns a Netbox site-group
func (n *NetBox) GetSiteGroup(i *SiteGroupList, id string) error {
	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/dcim/site-groups/"+id, 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
}