package main

import (
	"context"
	"fmt"
	"time"

	"go-eve-pi/esi"
	"go-eve-pi/options"
	"go-eve-pi/repositories"
	"go-eve-pi/routes"
	"go-eve-pi/types"
	wh "go-eve-pi/webhook"

	logger "git.site.quack-lab.dev/dave/cylogger"
)

// Orchestrator manages timer-based monitoring
type Orchestrator struct {
	esiClient            esi.ESIInterface
	ssoClient            routes.SSOInterface
	database             repositories.DatabaseInterface
	webhook              wh.Webhook
	expiryAlert          *time.Duration
	expiryCritical       *time.Duration
	alertExpiryTimers    map[string]*time.Timer // Track extractor expiry times
	criticalExpiryTimers map[string]*time.Timer // Track critical extractor expiry times
}

// NewOrchestrator creates a new orchestrator instance
func NewOrchestrator(esiClient esi.ESIInterface, ssoClient routes.SSOInterface, database repositories.DatabaseInterface, webhook wh.Webhook) *Orchestrator {
	return &Orchestrator{
		esiClient:            esiClient,
		ssoClient:            ssoClient,
		database:             database,
		webhook:              webhook,
		alertExpiryTimers:    make(map[string]*time.Timer),
		criticalExpiryTimers: make(map[string]*time.Timer),
	}
}

// Start begins the orchestrator's timer-based operations
func (o *Orchestrator) Start() {
	logger.Info("Starting orchestrator with cache validity: %s", options.GlobalOptions.CacheValidity)

	// Parse expiry warning and critical durations
	expiryWarning, err := time.ParseDuration(options.GlobalOptions.ExpiryWarning)
	if err != nil {
		logger.Error("Invalid expiry warning duration %s: %v", options.GlobalOptions.ExpiryWarning, err)
		return
	}
	o.expiryAlert = &expiryWarning

	expiryCritical, err := time.ParseDuration(options.GlobalOptions.ExpiryCritical)
	if err != nil {
		logger.Error("Invalid expiry critical duration %s: %v", options.GlobalOptions.ExpiryCritical, err)
		return
	}
	o.expiryCritical = &expiryCritical

	// Set up timers once
	o.setupTimers()

	logger.Info("Orchestrator started successfully")
}

// Stop stops all timers and cleans up resources
func (o *Orchestrator) Stop() {
	logger.Info("Stopping orchestrator")

	// Stop all alert timers
	for key, timer := range o.alertExpiryTimers {
		timer.Stop()
		delete(o.alertExpiryTimers, key)
	}

	// Stop all critical timers
	for key, timer := range o.criticalExpiryTimers {
		timer.Stop()
		delete(o.criticalExpiryTimers, key)
	}

	logger.Info("Orchestrator stopped")
}

// setupTimers sets up all timers based on current extractor data
func (o *Orchestrator) setupTimers() {
	logger.Info("Setting up timers for all characters")

	// Get all characters from database
	characters, err := o.database.Character().GetAllCharacters()
	if err != nil {
		logger.Error("Failed to get all characters: %v", err)
		return
	}

	logger.Info("Found %d characters to process", len(characters))

	if len(characters) == 0 {
		logger.Info("No characters found in database")
		return
	}

	// Process each character and set up timers
	for i, char := range characters {
		logger.Info("Processing character %d/%d: %s", i+1, len(characters), char.CharacterName)
		o.setupCharacterTimers(char)
	}

	logger.Info("Completed timer setup for all characters")
}

// setupCharacterTimers sets up timers for a single character's extractors
func (o *Orchestrator) setupCharacterTimers(char types.Character) {
	logger.Info("Setting up timers for character: %s (ID: %d)", char.CharacterName, char.ID)

	planets, err := o.esiClient.GetCharacterPlanets(context.Background(), int(char.ID), char.AccessToken)
	if err != nil {
		logger.Warning("Failed to get planets for character %s: %v", char.CharacterName, err)
		return
	}
	logger.Info("Got %d planets for character %s", len(planets), char.CharacterName)

	planetIds := make([]int64, len(planets))
	for i, planet := range planets {
		planetIds[i] = planet.PlanetID
	}

	// Get extractors for this character
	logger.Info("Getting extractors for character %s", char.CharacterName)
	extractors, err := routes.GetExtractorsForCharacter(o.esiClient, int(char.ID), char.AccessToken, planetIds)
	if err != nil {
		logger.Warning("Failed to get extractors for character %s: %v", char.CharacterName, err)
		return
	}
	logger.Info("Got %d extractors for character %s", len(extractors), char.CharacterName)

	// Set up timers for each extractor
	for _, extractor := range extractors {
		o.setupExtractorTimers(char.CharacterName, extractor)
	}

	logger.Info("Completed timer setup for character %s", char.CharacterName)
}

// setupExtractorTimers sets up timers for a single extractor
func (o *Orchestrator) setupExtractorTimers(characterName string, extractor routes.ExtractorInfo) {
	if extractor.ExpiryDate == "N/A" {
		logger.Info("Extractor %d has no expiry date, skipping", extractor.ExtractorNumber)
		return
	}

	logger.Info("Setting up timers for extractor %d with expiry date %s", extractor.ExtractorNumber, extractor.ExpiryDate)
	expiryTime, err := time.Parse(time.RFC3339, extractor.ExpiryDate)
	if err != nil {
		logger.Warning("Failed to parse expiry date %s: %v", extractor.ExpiryDate, err)
		return
	}

	// Create timer key for this extractor
	key := fmt.Sprintf("%s_%s_%d", characterName, extractor.PlanetName, extractor.ExtractorNumber)

	// Set warning timer to fire at the exact warning time
	warningAlertAt := expiryTime.Add(-*o.expiryAlert)
	logger.Info("Setting warning timer for extractor %d to fire at %s", extractor.ExtractorNumber, warningAlertAt.Format(time.RFC3339))
	o.alertExpiryTimers[key] = time.AfterFunc(time.Until(warningAlertAt), func() {
		o.sendExpiryAlert(characterName, extractor, false)
	})

	// Set critical timer to fire at the exact critical time
	criticalAlertAt := expiryTime.Add(-*o.expiryCritical)
	logger.Info("Setting critical timer for extractor %d to fire at %s", extractor.ExtractorNumber, criticalAlertAt.Format(time.RFC3339))
	o.criticalExpiryTimers[key] = time.AfterFunc(time.Until(criticalAlertAt), func() {
		o.sendExpiryAlert(characterName, extractor, true)
	})
}

// sendExpiryAlert sends an alert for extractor expiry
func (o *Orchestrator) sendExpiryAlert(characterName string, extractor routes.ExtractorInfo, isCritical bool) {
	alertType := "WARNING"
	if isCritical {
		alertType = "CRITICAL"
	}

	message := fmt.Sprintf("%s: Extractor %d on %s expires at %s",
		alertType, extractor.ExtractorNumber, extractor.PlanetName, extractor.ExpiryDate)

	logger.Info("Sending %s alert for character %s: %s", alertType, characterName, message)
	o.sendWebhook(characterName, message)
}

// sendWebhook sends a webhook notification
func (o *Orchestrator) sendWebhook(characterName, message string) {
	if o.webhook == nil {
		logger.Warning("Webhook not configured, skipping notification: %s", message)
		return
	}

	logger.Info("Sending webhook notification for character %s: %s", characterName, message)

	// Send webhook with character name as topic and message as content
	err := o.webhook.Post("EvePI", characterName, message)
	if err != nil {
		logger.Error("Failed to send webhook for character %s: %v", characterName, err)
	}
}