package main

import (
	"context"
	"log/slog"
	"os"
	"time"

	"git.amiirkhl.ir/starcoach-hackathon/zarinpal-analytics-backend/internal/config"
	"git.amiirkhl.ir/starcoach-hackathon/zarinpal-analytics-backend/internal/database"
)

func main() {
	logger := slog.New(slog.NewJSONHandler(os.Stdout, nil))
	cfg, err := config.Load()
	if err != nil {
		logger.Error("configuration failed", "error", err)
		os.Exit(1)
	}
	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
	defer cancel()
	pool, err := database.Open(ctx, cfg.DatabaseURL)
	if err != nil {
		logger.Error("database connection failed", "error", err)
		os.Exit(1)
	}
	defer pool.Close()
	if _, err := pool.Exec(ctx, `CREATE TABLE IF NOT EXISTS schema_migrations (version bigint PRIMARY KEY,applied_at timestamptz NOT NULL DEFAULT now())`); err != nil {
		logger.Error("migration bootstrap failed", "error", err)
		os.Exit(1)
	}
	migrations := []struct {
		version int64
		path    string
	}{{1, "migrations/000001_mvp.sql"}, {2, "migrations/000002_growth_analyst.sql"}, {3, "migrations/000003_ai_summary_refresh.sql"}, {4, "migrations/000004_ai_page_insights.sql"}, {5, "migrations/000005_growth_coach.sql"}, {6, "migrations/000006_growth_coach_completion_guard.sql"}, {7, "migrations/000007_growth_coach_manual_completion_provenance.sql"}, {8, "migrations/000008_section_refresh_monthly_goals.sql"}, {9, "migrations/000009_ranked_campaign_calendar.sql"}, {10, "migrations/000010_transaction_insight_period_scope.sql"}}
	for _, item := range migrations {
		var applied bool
		if err := pool.QueryRow(ctx, `SELECT EXISTS(SELECT 1 FROM schema_migrations WHERE version=$1)`, item.version).Scan(&applied); err != nil {
			logger.Error("checking migration version failed", "version", item.version, "error", err)
			os.Exit(1)
		}
		if applied {
			continue
		}
		path := item.path
		migration, err := os.ReadFile(path)
		if err != nil {
			logger.Error("reading migration failed", "path", path, "error", err)
			os.Exit(1)
		}
		if err := database.Migrate(ctx, pool, string(migration)); err != nil {
			logger.Error("migration failed", "path", path, "error", err)
			os.Exit(1)
		}
	}
	logger.Info("migration complete", "version", 10)
}