//go:build llm_script && !scripts_pkg

package main

import (
	"database/sql"
	"flag"
	"fmt"
	"io"
	"net/http"
	"os"
	"time"
)

type bytedanceSubscriptionImportConfig struct {
	PricingURL     string
	NoticeURL      string
	PricingFixture string
	NoticeFixture  string
	DryRun         bool
	Timeout        time.Duration
}

func main() {
	loadSubscriptionImportEnv()

	var pricingURL string
	var noticeURL string
	var pricingFixture string
	var noticeFixture string
	var dryRun bool
	var timeoutSeconds int

	flag.StringVar(&pricingURL, "pricing-url", defaultBytedanceCodingPlanURL, "火山方舟 Coding Plan 价格说明 URL")
	flag.StringVar(&noticeURL, "notice-url", defaultBytedanceCodingPlanNotice, "火山方舟 Coding Plan 活动说明 URL")
	flag.StringVar(&pricingFixture, "pricing-fixture", "", "火山方舟 Coding Plan 价格样例文件")
	flag.StringVar(&noticeFixture, "notice-fixture", "", "火山方舟 Coding Plan 活动样例文件")
	flag.BoolVar(&dryRun, "dry-run", false, "仅解析并打印摘要，不写入数据库")
	flag.IntVar(&timeoutSeconds, "timeout", 20, "请求超时（秒）")
	flag.Parse()

	cfg := bytedanceSubscriptionImportConfig{
		PricingURL:     pricingURL,
		NoticeURL:      noticeURL,
		PricingFixture: pricingFixture,
		NoticeFixture:  noticeFixture,
		DryRun:         dryRun,
		Timeout:        time.Duration(timeoutSeconds) * time.Second,
	}

	var db *sql.DB
	var err error
	if !cfg.DryRun {
		db, err = subscriptionImportDB()
		if err != nil {
			fmt.Fprintf(os.Stderr, "open db: %v\n", err)
			os.Exit(1)
		}
		defer db.Close()
	}

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

func runBytedanceSubscriptionImport(cfg bytedanceSubscriptionImportConfig, db *sql.DB, out io.Writer) error {
	client := &http.Client{Timeout: cfg.Timeout}
	pricingRaw, err := fetchSubscriptionPage(cfg.PricingURL, cfg.PricingFixture, client)
	if err != nil {
		return err
	}
	noticeRaw, err := fetchSubscriptionPage(cfg.NoticeURL, cfg.NoticeFixture, client)
	if err != nil {
		return err
	}

	records, err := parseBytedanceSubscriptionCatalog(pricingRaw, noticeRaw)
	if err != nil {
		return err
	}
	if cfg.DryRun {
		_, err = fmt.Fprintf(out, "source=bytedance-subscription-import plans=%d provider=%s operator=%s dry_run=true\n", len(records), records[0].ProviderName, records[0].OperatorName)
		return err
	}
	if db == nil {
		return fmt.Errorf("db is required when dry-run=false")
	}
	if err := upsertSubscriptionImportRecords(db, records); err != nil {
		return err
	}

	var tableRows int
	if err := db.QueryRow(`SELECT COUNT(*) FROM subscription_plan`).Scan(&tableRows); err != nil {
		return fmt.Errorf("count subscription_plan: %w", err)
	}
	_, err = fmt.Fprintf(out, "source=bytedance-subscription-import plans=%d provider=%s operator=%s table_rows=%d dry_run=false\n", len(records), records[0].ProviderName, records[0].OperatorName, tableRows)
	return err
}