//go:build llm_script && !scripts_pkg

package main

import (
	"database/sql"
	"flag"
	"fmt"
	"os"
	"strings"

	_ "github.com/lib/pq"
)

const catalogSeedVerificationImporterKey = "import_catalog_seed_verification.go"

type catalogSeedVerificationConfig struct {
	DryRun bool
}

func main() {
	loadCatalogSeedVerificationEnv()

	var cfg catalogSeedVerificationConfig
	flag.BoolVar(&cfg.DryRun, "dry-run", false, "仅打印摘要，不写入数据库")
	flag.Parse()

	db, err := catalogSeedVerificationDB()
	if err != nil {
		fmt.Fprintf(os.Stderr, "open db: %v\n", err)
		os.Exit(1)
	}
	defer db.Close()

	if err := runCatalogSeedVerificationImport(db, cfg); err != nil {
		fmt.Fprintf(os.Stderr, "import_catalog_seed_verification: %v\n", err)
		os.Exit(1)
	}
}

func loadCatalogSeedVerificationEnv() {
	for _, path := range []string{".env.local", ".env"} {
		data, err := os.ReadFile(path)
		if err != nil {
			continue
		}
		for _, line := range strings.Split(string(data), "\n") {
			line = strings.TrimSpace(line)
			if line == "" || strings.HasPrefix(line, "#") {
				continue
			}
			key, value, ok := strings.Cut(line, "=")
			if !ok {
				continue
			}
			key = strings.TrimSpace(key)
			value = strings.Trim(strings.TrimSpace(value), `"'`)
			if key == "" {
				continue
			}
			if _, exists := os.LookupEnv(key); exists {
				continue
			}
			_ = os.Setenv(key, value)
		}
	}
}

func catalogSeedVerificationDB() (*sql.DB, error) {
	dsn := os.Getenv("DATABASE_URL")
	if dsn == "" {
		dsn = "postgres://long@/llm_intelligence?host=/var/run/postgresql"
	}
	return sql.Open("postgres", dsn)
}

func runCatalogSeedVerificationImport(db *sql.DB, cfg catalogSeedVerificationConfig) error {
	var count int
	if err := db.QueryRow(`
		SELECT COUNT(*)
		FROM plan_catalog_inventory
		WHERE importer_key = $1
	`, catalogSeedVerificationImporterKey).Scan(&count); err != nil {
		return err
	}

	if cfg.DryRun {
		fmt.Printf("source=catalog-seed-verification entries=%d dry_run=true\n", count)
		return nil
	}

	_, err := db.Exec(`
		UPDATE plan_catalog_inventory
		SET plan_status = 'confirmed',
		    notes = CASE
		        WHEN position($2 in COALESCE(notes, '')) > 0 THEN notes
		        WHEN COALESCE(notes, '') = '' THEN $2
		        ELSE notes || '；' || $2
		    END,
		    last_checked_at = CURRENT_TIMESTAMP,
		    updated_at = CURRENT_TIMESTAMP
		WHERE importer_key = $1
	`, catalogSeedVerificationImporterKey, strings.TrimSpace("当前链路为目录级官方入口核验，结构化公开价格待后续独立 importer 补齐。"))
	if err != nil {
		return err
	}

	fmt.Printf("source=catalog-seed-verification entries=%d dry_run=false\n", count)
	return nil
}