package notifications

import (
	"fmt"
	"github.com/hunterlong/statping/utils"
	"github.com/pkg/errors"
	"strings"
	"time"
)

// AfterFind for Notification will set the timezone
func (n *Notification) AfterFind() (err error) {
	n.CreatedAt = utils.Now()
	n.UpdatedAt = utils.Now()
	return
}

// AddQueue will add any type of interface (json, string, struct, etc) into the Notifiers queue
func (n *Notification) AddQueue(uid string, msg interface{}) {
	data := &QueueData{uid, msg}
	n.Queue = append(n.Queue, data)
	log.WithFields(utils.ToFields(data, n)).Debug(fmt.Sprintf("Notifier '%v' added new item (%v) to the queue. (%v queued)", n.Method, uid, len(n.Queue)))
}

// CanTest returns true if the notifier implements the OnTest interface
func (n *Notification) CanTest() bool {
	return n.testable
}

// LastSent returns a time.Duration of the last sent notification for the notifier
func (n *Notification) LastSent() time.Duration {
	if len(n.logs) == 0 {
		return time.Duration(0)
	}
	last := n.Logs()[0]
	since := time.Since(last.Timestamp)
	return since
}

// SentLastHour returns the total amount of notifications sent in last 1 hour
func (n *Notification) SentLastHour() int {
	since := utils.Now().Add(-1 * time.Hour)
	return n.SentLast(since)
}

// SentLastMinute returns the total amount of notifications sent in last 1 minute
func (n *Notification) SentLastMinute() int {
	since := utils.Now().Add(-1 * time.Minute)
	return n.SentLast(since)
}

// SentLast accept a time.Time and returns the amount of sent notifications within your time to current
func (n *Notification) SentLast(since time.Time) int {
	sent := 0
	for _, v := range n.Logs() {
		lastTime := time.Time(v.Time).UTC()
		if lastTime.After(since) {
			sent++
		}
	}
	return sent
}

// GetValue returns the database value of a accept DbField value.
func (n *Notification) GetValue(dbField string) string {
	dbField = strings.ToLower(dbField)
	switch dbField {
	case "host":
		return n.Host
	case "port":
		return fmt.Sprintf("%v", n.Port)
	case "username":
		return n.Username
	case "password":
		if n.Password != "" {
			return "##########"
		}
	case "var1":
		return n.Var1
	case "var2":
		return n.Var2
	case "api_key":
		return n.ApiKey
	case "api_secret":
		return n.ApiSecret
	case "limits":
		return utils.ToString(int(n.Limits))
	}
	return ""
}

// Init accepts the Notifier interface to initialize the notifier
func Init(n Notifier) (*Notification, error) {
	err := install(n)
	if err == nil {
		notify, err := SelectNotification(n)
		if err != nil {
			return nil, errors.Wrap(err, "error selecting notification")
		}
		notify.CreatedAt = time.Now().UTC()
		notify.UpdatedAt = time.Now().UTC()
		if notify.Delay.Seconds() == 0 {
			notify.Delay = 1 * time.Second
		}
		notify.testable = utils.IsType(n, new(Tester))
		notify.Form = n.Select().Form

		AllCommunications = append(AllCommunications, n)

	} else {
		return nil, errors.Wrap(err, "error installing notification")
	}

	return nil, err
}

// ResetQueue will clear the notifiers Queue
func (n *Notification) ResetQueue() {
	n.Queue = nil
}

// ResetQueue will clear the notifiers Queue for a service
func (n *Notification) ResetUniqueQueue(uid string) []*QueueData {
	var queue []*QueueData
	for _, v := range n.Queue {
		if v.Id != uid {
			queue = append(queue, v)
		}
	}
	n.Queue = queue
	return queue
}

// start will start the go routine for the notifier queue
func (n *Notification) Start() {
	n.Running = make(chan bool)
}

// close will stop the go routine for queue
func (n *Notification) Close() {
	if n.IsRunning() {
		close(n.Running)
	}
}

// IsRunning will return true if the notifier is currently running a queue
func (n *Notification) IsRunning() bool {
	if n.Running == nil {
		return false
	}
	select {
	case <-n.Running:
		return false
	default:
		return true
	}
}