package main

import (
	"context"
	"errors"
	"log"
	"os"
	"os/signal"
	"syscall"
	"time"

	"github.com/nprasad2077/NBA_Go/services"
	"github.com/nprasad2077/NBA_Go/utils"
	"gorm.io/gorm"
)

// importPlayerAdvanced fetches and stores advanced stats for seasons
func importPlayerAdvanced(db *gorm.DB) {
	for season := 2001; season <= 2001; season++ {
		if err := services.FetchAndStorePlayerAdvancedScrapedStats(db, season, false); err != nil {
			log.Printf("advanced import failed for %d: %v", season, err)
		}
		log.Printf("Advanced import for season: %d", season)
		time.Sleep(2000 * time.Millisecond)
		utils.SleepWithJitter(1000 * time.Millisecond)
	}
}

// importPlayerAdvancedPlayoffs fetches and stores advanced stats for playoffs seasons
func importPlayerAdvancedPlayoffs(db *gorm.DB) {
	for season := 2001; season <= 2001; season++ {
		if err := services.FetchAndStorePlayerAdvancedScrapedStats(db, season, true); err != nil {
			log.Printf("advanced import failed for %d: %v", season, err)
		}
		log.Printf("Advanced Playoffs import for season: %d", season)
		time.Sleep(2000 * time.Millisecond)
		utils.SleepWithJitter(1500 * time.Millisecond)
	}
}

// importPlayerTotalsScrape fetches & stores scraped regular-season total stats
func importPlayerTotalsScrape(db *gorm.DB) {
	for season := 2001; season <= 2001; season++ {
		if err := services.FetchAndStorePlayerTotalScrapedStats(db, season, false); err != nil {
			log.Printf("scraped totals import failed for %d: %v", season, err)
		}
		log.Printf("Player Totals import for season: %d", season)
		time.Sleep(2000 * time.Millisecond)
		utils.SleepWithJitter(1250 * time.Millisecond)
	}
}

// importPlayerPlayoffsScrape fetches & stores scraped playoff total stats
func importPlayerTotalsPlayoffsScrape(db *gorm.DB) {
	for season := 2001; season <= 2001; season++ {
		if err := services.FetchAndStorePlayerTotalScrapedStats(db, season, true); err != nil {
			log.Printf("scraped playoffs import failed for %d: %v", season, err)
		}
		log.Printf("Player Playoffs Totals import for season: %d", season)
		time.Sleep(2000 * time.Millisecond)
		utils.SleepWithJitter(1700 * time.Millisecond)
	}
}

// importGameSchedules fetches and stores game schedules
func importGameSchedules(db *gorm.DB) {
	months := []string{"october", "november", "december", "january", "february", "march", "april", "may", "june"}

	for season := 2001; season <= 2001; season++ {
		log.Printf("--- Starting Game Schedule Import for Season: %d ---", season)
		for _, month := range months {
			if err := services.FetchAndStoreGameSchedule(db, season, month); err != nil {
				log.Printf("Game schedule import failed for %s %d: %v", month, season, err)
			}
			log.Printf("Game schedule import for %s, %d complete.", month, season)
			time.Sleep(2500 * time.Millisecond)
			utils.SleepWithJitter(1800 * time.Millisecond)
		}
		log.Printf("--- Finished Game Schedule Import for Season: %d ---", season)
	}
}

// importBoxScores fetches and stores all box score data (line scores, player/team stats)
// in safe 20-day session chunks with cool-off pauses and immediate database upserts.
func importBoxScores(db *gorm.DB) {
	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
	defer stop()

	from := time.Date(2000, time.October, 31, 0, 0, 0, 0, time.UTC)
	to := time.Date(2001, time.June, 30, 23, 59, 59, 0, time.UTC)

	chunkDays := 20             // 20-day session chunks
	coolOff := 20 * time.Second // 20s cool-off with jitter between chunks
	skipExisting := true        // Automatically skip games that already have line scores

	if err := services.FetchAndStoreBoxScoreDataChunked(ctx, db, from, to, chunkDays, coolOff, skipExisting); err != nil {
		if errors.Is(err, context.Canceled) {
			log.Println("👋 Box score import interrupted by user. Safe to resume anytime!")
			return
		}
		log.Fatalf("Box score import failed: %v", err)
	}

	log.Println("--- Finished Box Score Data Import ---")
}

// importPlayerShotCharts fetches shot charts for a PREDEFINED list of players for a given range of seasons.
func importPlayerShotCharts(db *gorm.DB) {
	log.Println("--- Starting Player Shot Chart Import from Predefined List ---")

	startSeason := 2026
	endSeason := 2017

	targetPlayerIDs := []string{
		// "jamesle01",
		"curryst01",
		// "jokicni01",
		// "doncilu01",
		// "hardeja01",
		// "irvinky01",
		// "duranke01",
		// "youngtr01",
		// "gilgesh01",
		// "brunsja01",
		// "edwaran01",
		// "mitchdo01",
		// "derozde01",
		// "westbru01",
		// "butleji01",
		// "davisan02",
		// "leonaka01",
		// "tatumja01",
		// "hardeja01",
		// "curryst01",
		// "duranke01",
		// "jamesle01",
		// "lillada01",
		// "westbru01",
		// "georgpa01",
		// "derozde01",
		// "thomais02",
		// "davisan02",
		// "townska01",
		// "walkeke02",
		// "bealbr01",
		"antetgi01",
		"bookede01",
		// "youngtr01",
		// "doncilu01",
		// "jokicni01",
		"randlju01",
		"embiijo01",
		// "tatumja01",
		// "gilgesh01",
		// "edwaran01",
		"mitchdo01",
		// "brunsja01",
		"herroty01",
		"brownja02",
		"maxeyty01",
		"murraja01",
	}

	if len(targetPlayerIDs) == 0 {
		log.Println("⚠️ Player ID list is empty. Skipping shot chart import.")
		return
	}

	log.Printf("Found %d players in the predefined list. Starting shot chart import for seasons %d down to %d.", len(targetPlayerIDs), startSeason, endSeason)

	for i, playerID := range targetPlayerIDs {
		log.Printf("(%d/%d) Importing shot charts for player: %s", i+1, len(targetPlayerIDs), playerID)

		err := services.FetchAndStoreShotChartScrapedForPlayer(db, playerID, startSeason, endSeason)
		if err != nil {
			log.Printf("❌ Shot chart import failed for player %s: %v", playerID, err)
		}

		utils.SleepWithJitter(10000 * time.Millisecond)
	}

	log.Println("--- Finished Player Shot Chart Import from Predefined List ---")
}

// importMarkPlayoffGames marks games as playoff using the dedicated Basketball Reference playoff schedule.
func importMarkPlayoffGames(db *gorm.DB) {
	for season := 2001; season <= 2001; season++ {
		if err := services.FetchAndMarkPlayoffGames(db, season); err != nil {
			log.Printf("playoff marking failed for %d: %v", season, err)
		}
		log.Printf("Playoff games marked for season: %d", season)
	}
}