import Foundation

@main
struct MatchExplanationTests {
    static func main() throws {
        let old = """
        {"id":"old","invoices":[],"payments":[],"category":"交通","matchType":"auto","score":90,
        "reasons":["金额一致 ¥100.00"],"paymentTotal":100,"expenseAmount":100}
        """
        let legacy = try JSONDecoder().decode(MatchGroup.self, from: Data(old.utf8))
        precondition(legacy.explanation == nil)
        precondition(legacy.evidenceScore == nil)
        precondition(legacy.evidenceLabel == "评分待核对")
        let explanation = """
        {"version":2,"title":"单张发票与付款截图","rawScore":65,"checks":[
        {"title":"共同金额","points":40,"maximum":40,"detail":"金额一致","issue":""},
        {"title":"商户相似","points":0,"maximum":20,"detail":"未识别商户","issue":"商户未识别"},
        {"title":"日期接近","points":10,"maximum":10,"detail":"日期一致","issue":""},
        {"title":"交易单号","points":0,"maximum":15,"detail":"单号未识别","issue":"单号未识别"},
        {"title":"批次金额唯一","points":15,"maximum":15,"detail":"金额唯一","issue":""}
        ],"note":"这是证据评分"}
        """
        var match = legacy
        match.explanation = try JSONDecoder().decode(MatchExplanation.self, from: Data(explanation.utf8))
        precondition(match.explanation?.summary == "商户未识别 · 单号未识别")
        precondition(match.evidenceScore == 65)
        precondition(match.evidenceLabel == "65%")
        precondition(match.score == 90)
        let restored = try JSONDecoder().decode(MatchGroup.self, from: JSONEncoder().encode(match))
        precondition(restored.explanation?.rawScore == 65)
        precondition(restored.explanation?.checks.count == 5)
        precondition(restored.evidenceLabel == "65%")
        precondition(restored.id == legacy.id)
        var complete = match.explanation!
        for index in complete.checks.indices {
            complete.checks[index].points = complete.checks[index].maximum
            complete.checks[index].issue = ""
        }
        complete.rawScore = 100
        precondition(complete.hundredPointScore == 100)
        precondition(complete.summary == "查看匹配依据")
        var invalid = complete
        invalid.checks[0].maximum = 75
        precondition(invalid.hundredPointScore == nil)
        invalid = complete
        invalid.rawScore = 75
        precondition(invalid.hundredPointScore == nil)
        invalid = complete
        invalid.version = nil
        precondition(invalid.hundredPointScore == nil)
        invalid = complete
        invalid.checks[0].points = -1
        precondition(invalid.hundredPointScore == nil)
        let oldExplanation = explanation.replacingOccurrences(of: "\"version\":2,", with: "")
        let decodedOld = try JSONDecoder().decode(MatchExplanation.self, from: Data(oldExplanation.utf8))
        precondition(decodedOld.version == nil && decodedOld.hundredPointScore == nil)
        match.matchType = "manual"
        precondition(match.evidenceScore == nil)
        complete.checks = []
        precondition(complete.hundredPointScore == nil)
        precondition(complete.summary == "查看历史依据")
        print("Match explanation tests passed")
    }
}