// Command chcutscenes 列出「城镇区域开启过场」全表：影片、所需等级、前置任务（含任务名）。
//
// 数据来源全部是 PVF：
//   - etc/townmovielist.etc            → (城镇, 区域) ↔ 影片标题/文件
//   - <城镇>.twn 各 area 的 [permission] → NeedLevel + NeedQuests
//   - n_quest/...                      → 任务名
//
// 用法:
//
//	go run ./cmd/scratch/chcutscenes -pvf <Script.pvf>
package main

import (
	"context"
	"flag"
	"fmt"
	"os"
	"sort"
	"strings"

	dnfpvf "longheng.io/server/internal/modules/dnf/pvf"
	dnfquest "longheng.io/server/internal/modules/dnf/quest"
	dnftown "longheng.io/server/internal/modules/dnf/town"
	platformpvf "longheng.io/server/internal/platform/pvf"
)

func main() {
	pvfPath := flag.String("pvf", "", "Script.pvf 路径")
	flag.Parse()
	if *pvfPath == "" {
		fmt.Fprintln(os.Stderr, "需要 -pvf")
		os.Exit(2)
	}
	archive, err := platformpvf.LoadArchive(platformpvf.Options{Path: *pvfPath})
	if err != nil {
		fmt.Fprintln(os.Stderr, "打开 PVF 失败:", err)
		os.Exit(1)
	}
	ctx := context.Background()
	towns, err := dnftown.Load(ctx, archive, dnftown.Options{})
	if err != nil {
		fmt.Fprintf(os.Stderr, "加载城镇表失败（继续，等级/任务可能缺失）: %v\n", err)
	}
	movies, err := dnftown.LoadTownMovieTable(archive, dnftown.DefaultMovieListPath)
	if err != nil {
		fmt.Fprintln(os.Stderr, "加载过场表失败:", err)
		os.Exit(1)
	}

	// 任务名：尽力加载，失败就只显示任务号。
	questNames := map[int64]string{}
	if index, buildErr := dnfpvf.Build(ctx, archive, dnfpvf.BuildOptions{Lists: []string{dnfquest.DefaultList}}); buildErr == nil {
		if catalog, loadErr := dnfquest.Load(ctx, index); loadErr == nil {
			for _, def := range catalog.Definitions() {
				if strings.TrimSpace(def.Name) != "" {
					questNames[def.ID] = def.Name
				}
			}
		} else {
			fmt.Fprintf(os.Stderr, "加载任务表失败（只显示任务号）: %v\n", loadErr)
		}
	}

	plays := movies.Plays()
	type row struct {
		play  dnftown.TownMoviePlay
		area  dnftown.Area
		town  dnftown.Town
		found bool
	}
	rows := make([]row, 0, len(plays))
	for _, play := range plays {
		area, ok := towns.FindArea(play.TownID, play.AreaID)
		town, _ := towns.Find(play.TownID)
		rows = append(rows, row{play: play, area: area, town: town, found: ok})
	}
	// 按所需等级升序（缺等级的排最后）
	sort.SliceStable(rows, func(i, j int) bool {
		li, lj := rows[i].area.MinLevel, rows[j].area.MinLevel
		if li == 0 {
			li = 1 << 30
		}
		if lj == 0 {
			lj = 1 << 30
		}
		return li < lj
	})

	fmt.Printf("城镇区域开启过场：共 %d 条\n\n", len(rows))
	fmt.Printf("%-4s %-4s %-6s %-14s %-34s %s\n", "Lv", "城镇", "区域", "影片标题", "影片文件", "前置任务")
	fmt.Println(strings.Repeat("-", 118))
	for _, r := range rows {
		level := "-"
		if r.area.MinLevel > 0 {
			level = fmt.Sprintf("%d", r.area.MinLevel)
		}
		title := r.play.Title
		if title == "" {
			title = "(无标题)"
		}
		quests := "-"
		if len(r.area.NeedQuests) > 0 {
			parts := make([]string, 0, len(r.area.NeedQuests))
			for _, id := range r.area.NeedQuests {
				if name, ok := questNames[id]; ok {
					parts = append(parts, fmt.Sprintf("%d(%s)", id, name))
				} else {
					parts = append(parts, fmt.Sprintf("%d", id))
				}
			}
			quests = strings.Join(parts, ", ")
		}
		fmt.Printf("%-4s %-4d %-6d %-14s %-34s %s\n",
			level, r.play.TownID, r.play.AreaID, title, r.play.FilePath, quests)
		if r.found && r.area.MapPath != "" {
			fmt.Printf("     └ 城镇「%s」  地图 %s\n", r.town.Name, r.area.MapPath)
		}
	}
}