package common

import (
	"encoding/json"
	"fmt"
)

type CurrencyWarsNodeDrop struct {
	Rolls   uint32            `json:"rolls"`
	Weights map[string]uint32 `json:"weights"`
}

type CurrencyWarsNodeDropsCatalog struct {
	FormatVersion        uint32                          `json:"format_version"`
	TargetClientVersion  string                          `json:"target_client_version"`
	TargetAssemblySHA256 string                          `json:"target_assembly_sha256"`
	NodeDrops            map[string]CurrencyWarsNodeDrop `json:"node_drops"`
}

func LoadCurrencyWarsNodeDrops(catalog *CurrencyWarsCatalog) (*CurrencyWarsNodeDropsCatalog, error) {
	raw, err := ReadResourceFile("resources/CurrencyWarsNodeDrops.json")
	if err != nil {
		return nil, err
	}
	var out CurrencyWarsNodeDropsCatalog
	if err = json.Unmarshal(raw, &out); err != nil {
		return nil, err
	}
	if catalog != nil {
		if out.FormatVersion != 1 || out.TargetClientVersion != catalog.ClientVersion || out.TargetAssemblySHA256 != catalog.Provenance.GameAssemblySHA256 {
			return nil, fmt.Errorf("CW node drops revision differs from catalog")
		}
	}
	return &out, nil
}