import Foundation

/// 钱包(只读:余额 + 金币流水)。对齐后端 wallet.py。
/// 首版"金币只进不出":不接 exchange/withdraw/bind-wechat 等出口端点。
struct WalletService {
    private var api: APIClient { .shared }

    func account() async throws -> CoinAccountDTO {
        try await api.get("api/v1/wallet/account")
    }

    func coinTransactions(limit: Int = 20, cursor: Int? = nil) async throws -> CoinTransactionPageDTO {
        var query = [URLQueryItem(name: "limit", value: String(limit))]
        if let cursor { query.append(URLQueryItem(name: "cursor", value: String(cursor))) }
        return try await api.get("api/v1/wallet/coin-transactions", query: query)
    }
}