package main

import (
	"context"
	"fmt"
	"log/slog"
	"net/http"
	"os"
	"os/signal"
	"syscall"
	"time"

	"git.g3e.fr/H6N/account/internal/config"
	"git.g3e.fr/H6N/account/internal/pipeline"
	"git.g3e.fr/H6N/account/internal/scheduler"
	"git.g3e.fr/H6N/account/internal/server"
	"git.g3e.fr/H6N/account/internal/store"
	"github.com/jackc/pgx/v5/pgxpool"
)

func main() {
	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))

	cfg := config.Load()

	ctx, cancel := context.WithCancel(context.Background())
	defer cancel()

	pool, err := pgxpool.New(ctx, cfg.DatabaseURL)
	if err != nil {
		logger.Error("failed to create db pool", "error", err)
		os.Exit(1)
	}
	defer pool.Close()

	if err := pool.Ping(ctx); err != nil {
		logger.Error("database ping failed", "error", err)
		os.Exit(1)
	}
	logger.Info("database connected")

	st := store.New(pool)
	pl := pipeline.New(st, pipeline.Config{
		OpenFIGIKey:  cfg.OpenFIGIKey,
		CoinGeckoKey: cfg.CoinGeckoKey,
	}, logger)

	sched := scheduler.New(logger)
	sched.Add(scheduler.Job{
		Name:     "fetch-prices",
		Interval: cfg.PriceFetchInterval,
		Fn:       pl.FetchAll,
	})
	sched.Add(scheduler.Job{
		Name:     "clean-price-history",
		Interval: cfg.PriceCleanInterval,
		Fn:       pl.CleanHistory,
	})
	sched.Start(ctx)

	srv := server.New(cfg, pool, logger)

	httpServer := &http.Server{
		Addr:         fmt.Sprintf(":%s", cfg.Port),
		Handler:      srv,
		ReadTimeout:  10 * time.Second,
		WriteTimeout: 10 * time.Second,
		IdleTimeout:  60 * time.Second,
	}

	go func() {
		logger.Info("server listening", "port", cfg.Port, "env", cfg.Env)
		if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
			logger.Error("server error", "error", err)
			os.Exit(1)
		}
	}()

	quit := make(chan os.Signal, 1)
	signal.Notify(quit, syscall.SIGINT, syscall.SIGTERM)
	<-quit

	logger.Info("shutting down")
	cancel()
	shutdownCtx, stop := context.WithTimeout(context.Background(), 10*time.Second)
	defer stop()
	httpServer.Shutdown(shutdownCtx)
}