import Foundation

// 美团 CPS 导购。价格字段是字符串(后端原样透传),展示直接用。

struct FeedRequest: Codable {
    let longitude: Double
    let latitude: Double
    var page: Int = 1
    var pageSize: Int = 20
}

struct FeedResponse: Codable {
    let items: [CouponCard]
    let hasNext: Bool
    let page: Int
}

struct CouponCard: Codable, Identifiable, Hashable {
    var id: String { productViewSign }

    let productViewSign: String
    let platform: Int
    let bizLine: Int?
    let name: String
    let headImageUrl: String
    let brandName: String?
    let brandLogoUrl: String?
    let sellPrice: String
    let originalPrice: String
    let discountAmount: String
    let commissionRate: String
    let commissionAmount: String?
    let saleVolume: String?
    let poiName: String?
    let distanceText: String?
    let distanceMeters: Double?
    let availablePoiNum: Int?
    let couponNum: Int?
    let validDays: Int?
    let priceLabel: String?
    let rankLabel: String?
    let ratingLabel: String?
}

struct ReferralLinkRequest: Codable {
    let productViewSign: String
    var platform: Int = 1
    var bizLine: Int?
    var linkTypeList: [Int]?
}

struct ReferralLinkResponse: Codable {
    let link: String
    var linkMap: [String: String] = [:]

    enum CodingKeys: String, CodingKey {
        case link
        case linkMap   // 全局 convertFromSnakeCase 已把 link_map → linkMap
    }

    init(from decoder: Decoder) throws {
        let c = try decoder.container(keyedBy: CodingKeys.self)
        link = try c.decode(String.self, forKey: .link)
        linkMap = (try? c.decode([String: String].self, forKey: .linkMap)) ?? [:]
    }
}