let keyword: String? = ""
let type: String?  = ""
let use: String?  = ""
let max: Int?  = 0
let min: Int? = 4

let orgsearchDataModel: [Datum] = []

extension String {
    func contains(_ string: String, caseInsenstive: Bool = true) -> Bool {
        return range(of: string, options: caseInsenstive ? .caseInsensitive : []) != nil
    }
}

extension Datum {
    func matchAddress(_ string: String?) -> Bool {
        guard let string = string else { return true }
        guard let address = listingAddress else { return true }
        return address.contains(string)
    }
    func matchType(_ string: String?) -> Bool {
        guard let string = string else { return true }
        return listingType.contains(string)
    }
    func matchUse(_ string: String?) -> Bool {
        guard let string = string else { return true }
        return listingUse.contains(string)
    }
    func isIncludedBetween(min: Int?, max: Int?) -> Bool  {
        guard let listingPrice = listingPrice, let price = Int(listingPrice) else { return false }
        return price >= (min ?? Int.min) && price <= (max ?? Int.max)
    }
}



let filtered = orgsearchDataModel.filter {
    return $0.matchAddress(keyword) && $0.matchUse(use) && $0.matchType(type) && $0.isIncludedBetween(min: min, max: max)
}

let filter2 = orgsearchDataModel.filter {
    let firstTest = $0.listingAddress!.range(of: keyword!, options: .caseInsensitive) != nil && $0.listingType.range(of: type!, options: .caseInsensitive) != nil && $0.listingUse.range(of: use!, options: .caseInsensitive) != nil
    guard firstTest == true else { return false }
    if let price = Int($0.listingPrice ?? "0") {
        return (price > min! && price < max!) && firstTest
    }
    return false
}