package netboxgo

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

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

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

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

type SiteList struct {
	ID      int    `json:"id"`
	URL     string `json:"url"`
	Display string `json:"display"`
	Name    string `json:"name"`
	Slug    string `json:"slug"`
	Status  struct {
		Label string `json:"label"`
		Value string `json:"value"`
	} `json:"status"`
	Region 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:"region"`
	Group 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:"group"`
	Tenant struct {
		ID      int    `json:"id"`
		URL     string `json:"url"`
		Display string `json:"display"`
		Name    string `json:"name"`
		Slug    string `json:"slug"`
	} `json:"tenant"`
	Facility        string `json:"facility"`
	Asn             int    `json:"asn"`
	TimeZone        string `json:"time_zone"`
	Description     string `json:"description"`
	PhysicalAddress string `json:"physical_address"`
	ShippingAddress string `json:"shipping_address"`
	Latitude        string `json:"latitude"`
	Longitude       string `json:"longitude"`
	ContactName     string `json:"contact_name"`
	ContactPhone    string `json:"contact_phone"`
	ContactEmail    string `json:"contact_email"`
	Comments        string `json:"comments"`
	Tags            []struct {
		ID      int    `json:"id"`
		URL     string `json:"url"`
		Display string `json:"display"`
		Name    string `json:"name"`
		Slug    string `json:"slug"`
		Color   string `json:"color"`
	} `json:"tags"`
	CustomFields struct {
	} `json:"custom_fields"`
	Created             string    `json:"created"`
	LastUpdated         time.Time `json:"last_updated"`
	CircuitCount        int       `json:"circuit_count"`
	DeviceCount         int       `json:"device_count"`
	PrefixCount         int       `json:"prefix_count"`
	RackCount           int       `json:"rack_count"`
	VirtualmachineCount int       `json:"virtualmachine_count"`
	VlanCount           int       `json:"vlan_count"`
}

// SiteFilter is used to filter out returned object from Netbox API tenancy_tenants_list
type SiteFilter 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"`
	Group   string `schema:"group,omitempty"`
	GroupID string `schema:"group_id,omitempty"`
	IDIn    string `schema:"id__in,omitempty"`
	Q       string `schema:"q,omitempty"`
	Tag     string `schema:"tag,omitempty"`
}

// ListTenants returns Netbox tenancy_tenants_list
func (n *NetBox) ListSites(i *SitesList, 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
}

// GetSite returns Netbox tenancy_tenants_list
func (n *NetBox) GetSite(i *SiteList, 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/sites/"+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
}