package main

import (
	"fmt"
	"html/template"
	"log"
	"strings"

	"git.sr.ht/~michalr/go-satel"
)

const (
	ArmedPartition_Armed  = true
	ArmedPartition_Unrmed = false

	PartitionAlarm_Alarm          = true
	PartitionAlarm_AlarmCancelled = false
)

type SatelNameGetter interface {
	GetName(devType satel.DeviceType, index byte) (*satel.NameEvent, error)
}

type MsgContent struct {
	SatelEvent satel.BasicEventElement
}

type SatelMsgContent struct {
	SatelEvent satel.BasicEventElement
	s          SatelNameGetter
	logger     *log.Logger
}

type GenericMessage struct {
	Messages []satel.BasicEventElement
}

type SatelMessage struct {
	Messages []SatelMsgContent
}

func getSatelMessageContent(messages []satel.BasicEventElement, s SatelNameGetter, logger *log.Logger) []SatelMsgContent {
	retval := make([]SatelMsgContent, len(messages))
	for i, v := range messages {
		retval[i] = SatelMsgContent{v, s, logger}
	}
	return retval
}

func (self SatelMsgContent) GetName() string {
	if self.SatelEvent.Type == satel.ArmedPartition || self.SatelEvent.Type == satel.PartitionAlarm {
		// Satel has 1-based indexes of partitions, go-satel has 0-based
		name, err := self.s.GetName(satel.DeviceType_Partition, byte(self.SatelEvent.Index+1))
		if err != nil {
			self.logger.Print("Could not get partition name: ", err)
			return fmt.Sprint("Partition#", self.SatelEvent.Index)
		}
		return name.DevName
	} else {
		return self.IndexDesc()
	}
}

func (self GenericMessage) Format(template *template.Template, s SatelNameGetter, logger *log.Logger) string {
	b := strings.Builder{}
	template.Execute(&b, SatelMessage{
		getSatelMessageContent(self.Messages, s, logger),
	})
	return b.String()
}

func getEmojiWhenTrueIsGood(v bool) string {
	if v {
		return "✅"
	} else {
		return "🔴"
	}
}

func getEmojiWhenTrueIsBad(v bool) string {
	if v {
		return "🔴"
	} else {
		return "✅"
	}
}

func getArmedPartitionStatus(v bool) string {
	if v == ArmedPartition_Armed {
		return "✅ - ARMED"
	} else {
		return "🔴 - DISARMED"
	}
}

func getPartitionAlarmStatus(v bool) string {
	if v == PartitionAlarm_Alarm {
		return "⚠️⚠️ ALARM! ⚠️⚠️"
	} else {
		return "Alarm cancelled"
	}
}

func (self SatelMsgContent) FormatEvent() string {
	switch self.SatelEvent.Type {
	case satel.ZoneViolation:
		return fmt.Sprintf("%s: %s", self.SatelEvent.Type.String(), getEmojiWhenTrueIsBad(self.SatelEvent.Value))
	case satel.ZoneTamper:
		return fmt.Sprintf("%s: %s", self.SatelEvent.Type.String(), getEmojiWhenTrueIsBad(self.SatelEvent.Value))
	case satel.ZoneAlarm:
		return fmt.Sprintf("%s: %s", self.SatelEvent.Type.String(), getEmojiWhenTrueIsBad(self.SatelEvent.Value))
	case satel.ZoneTamperAlarm:
		return fmt.Sprintf("%s: %s", self.SatelEvent.Type.String(), getEmojiWhenTrueIsBad(self.SatelEvent.Value))
	case satel.ZoneAlarmMemory:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.ZoneTamperAlarmMemory:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.ZoneBypass:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.ZoneNoViolationTrouble:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.ZoneLongViolationTrouble:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.ArmedPartitionSuppressed:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.ArmedPartition:
		return getArmedPartitionStatus(self.SatelEvent.Value)
	case satel.PartitionArmedInMode2:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionArmedInMode3:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionWith1stCodeEntered:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionEntryTime:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionExitTimeOver10s:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionExitTimeUnder10s:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionTemporaryBlocked:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionBlockedForGuardRound:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionAlarm:
		return getPartitionAlarmStatus(self.SatelEvent.Value)
	case satel.PartitionFireAlarm:
		return fmt.Sprintf("%s: %s", self.SatelEvent.Type.String(), getEmojiWhenTrueIsBad(self.SatelEvent.Value))
	case satel.PartitionAlarmMemory:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionFireAlarmMemory:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.Output:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.DoorOpened:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.DoorOpenedLong:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.StatusBit:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroublePart1:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroublePart2:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroublePart3:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroublePart4:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroublePart5:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroubleMemoryPart1:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroubleMemoryPart2:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroubleMemoryPart3:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroubleMemoryPart4:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.TroubleMemoryPart5:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.PartitionWithViolatedZones:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	case satel.ZoneIsolate:
		return fmt.Sprintf("%s: %t", self.SatelEvent.Type.String(), self.SatelEvent.Value)
	}
	panic(fmt.Sprint("Unknown event received: ", self.SatelEvent))
}

func (self SatelMsgContent) IndexDesc() string {
	switch self.SatelEvent.Type {
	case satel.ZoneViolation:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	case satel.ZoneTamper:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	case satel.ZoneAlarm:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	case satel.ZoneTamperAlarm:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	case satel.ZoneAlarmMemory:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	case satel.ZoneTamperAlarmMemory:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	case satel.ZoneBypass:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	case satel.ZoneNoViolationTrouble:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	case satel.ZoneLongViolationTrouble:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	case satel.ArmedPartitionSuppressed:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.ArmedPartition:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionArmedInMode2:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionArmedInMode3:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionWith1stCodeEntered:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionEntryTime:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionExitTimeOver10s:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionExitTimeUnder10s:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionTemporaryBlocked:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionBlockedForGuardRound:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionAlarm:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionFireAlarm:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionAlarmMemory:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.PartitionFireAlarmMemory:
		return fmt.Sprintf("Partition %d", self.SatelEvent.Index)
	case satel.ZoneIsolate:
		return fmt.Sprintf("Zone %d", self.SatelEvent.Index)
	}
	return fmt.Sprintf("Unknown index: %d", self.SatelEvent.Index)
}