import Foundation
import Testing
@testable import OpenClaw

struct HealthDecodeTests {
    private let sampleJSON: String = // minimal but complete payload
        """
        {"ts":1733622000,"durationMs":420,"channels":{"whatsapp":{"linked":true,"authAgeMs":120000},"telegram":{"configured":true,"probe":{"ok":true,"elapsedMs":800}}},"channelOrder":["whatsapp","telegram"],"heartbeatSeconds":60,"sessions":{"path":"/tmp/sessions.json","count":1,"recent":[{"key":"abc","updatedAt":1733621900,"age":120000}]}}
        """

    @Test func `decodes clean JSON`() {
        let data = Data(sampleJSON.utf8)
        let snap = decodeHealthSnapshot(from: data)

        #expect(snap?.channels["whatsapp"]?.linked == true)
        #expect(snap?.sessions.count == 1)
    }

    @Test func `decodes with leading noise`() {
        let noisy = "debug: something logged\n" + self.sampleJSON + "\ntrailer"
        let snap = decodeHealthSnapshot(from: Data(noisy.utf8))

        #expect(snap?.channels["telegram"]?.probe?.elapsedMs == 800)
    }

    @Test func `fails without braces`() {
        let data = Data("no json here".utf8)
        let snap = decodeHealthSnapshot(from: data)

        #expect(snap == nil)
    }
}