package common

import (
	"encoding/json"
	"fmt"
	"sync"
)

type PlayerCosmetics struct {
	ClientVersion string `json:"client_version"`
	OutfitItems   []struct {
		ItemID     uint32 `json:"item_id"`
		PileLimit  uint32 `json:"pile_limit"`
		OwnedCount uint32 `json:"owned_count"`
	} `json:"outfit_items"`
	Skins []struct {
		ID       uint32 `json:"id"`
		AvatarID uint32 `json:"avatar_id"`
	} `json:"skins"`
}

var cosmeticsOnce sync.Once
var cosmeticsData PlayerCosmetics
var cosmeticsError error

func LoadPlayerCosmetics() (*PlayerCosmetics, error) {
	cosmeticsOnce.Do(func() {
		raw, err := ReadResourceFile("resources/PlayerCosmetics.json")
		if err != nil {
			cosmeticsError = err
			return
		}
		if err = json.Unmarshal(raw, &cosmeticsData); err != nil {
			cosmeticsError = err
			return
		}
		cfg, err := LoadRuntimeConfig()
		if err != nil {
			cosmeticsError = err
			return
		}
		if cfg.ClientVersion != cosmeticsData.ClientVersion || len(cosmeticsData.OutfitItems) == 0 {
			cosmeticsError = fmt.Errorf("missing or mismatched PlayerCosmetics resource")
			return
		}
		seen := map[uint32]bool{}
		for _, item := range cosmeticsData.OutfitItems {
			if item.ItemID == 0 || item.OwnedCount == 0 || item.OwnedCount > item.PileLimit || seen[item.ItemID] {
				cosmeticsError = fmt.Errorf("invalid outfit item %d", item.ItemID)
				return
			}
			seen[item.ItemID] = true
		}
	})
	return &cosmeticsData, cosmeticsError
}