package rchgutil

import (
	"encoding/json"
	"testing"

	"github.com/vmihailenco/msgpack/v5"
)

func TestDecodeCachedPayTypes(t *testing.T) {
	want := []AllPayType{{
		Money: "100",
		Types: []mercPayTypeInfo{{Name: "支付宝", Type: "alipay"}},
	}}

	tests := []struct {
		name string
		data func(t *testing.T) []byte
	}{
		{
			name: "json",
			data: func(t *testing.T) []byte {
				t.Helper()
				data, err := json.Marshal(want)
				if err != nil {
					t.Fatal(err)
				}
				return data
			},
		},
		{
			name: "legacy msgpack",
			data: func(t *testing.T) []byte {
				t.Helper()
				data, err := msgpack.Marshal(want)
				if err != nil {
					t.Fatal(err)
				}
				return data
			},
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			got, err := decodeCachedPayTypes(string(tt.data(t)))
			if err != nil {
				t.Fatalf("decodeCachedPayTypes() error = %v", err)
			}
			if len(got) != 1 || got[0].Money != want[0].Money || len(got[0].Types) != 1 || got[0].Types[0] != want[0].Types[0] {
				t.Fatalf("decodeCachedPayTypes() = %#v, want %#v", got, want)
			}
		})
	}
}

func TestDecodeCachedPayTypesRejectsInvalidData(t *testing.T) {
	if _, err := decodeCachedPayTypes("not-json-or-msgpack"); err == nil {
		t.Fatal("decodeCachedPayTypes() error = nil, want decode error")
	}
}