//
//  IndeedHTMLJobParserTests.swift
//  indeed_ai_job_searchTests
//

import XCTest
@testable import indeed_ai_job_search

final class IndeedHTMLJobParserTests: XCTestCase {
    func testDetectsCaptchaPage() {
        let html = """
        <html><title>Security Check - Indeed.com</title>
        <script>window.INDEED_CLOUDFLARE_STATIC_PAGE={PAGE_TYPE:"captcha"};</script>
        </html>
        """
        XCTAssertTrue(IndeedHTMLJobParser.isBlockedOrCaptcha(html))
        XCTAssertThrowsError(
            try IndeedHTMLJobParser.parse(
                html: html,
                pageURL: URL(string: "https://www.indeed.com/jobs")!
            )
        ) { error in
            guard case IndeedDataError.forbidden = error else {
                return XCTFail("Expected forbidden, got \(error)")
            }
        }
    }

    func testParsesEmbeddedJobKeyJSON() throws {
        let html = """
        <html><body>
        <script>
        var results = [
          {
            "jobkey": "5185d0dd8c286093",
            "displayTitle": "iOS Engineer",
            "company": "Tuyo",
            "formattedLocation": "Remote",
            "snippet": "Build SwiftUI apps",
            "link": "/viewjob?jk=5185d0dd8c286093",
            "jobTypes": ["Full-time"],
            "salarySnippet": { "text": "$120,000 - $160,000 a year" }
          },
          {
            "jobKey": "a1b2c3d4e5f60718",
            "title": "Senior iOS Developer",
            "companyName": "Acme Labs",
            "formattedLocation": "Lahore, Pakistan",
            "snippet": "PKR roles",
            "url": "https://pk.indeed.com/viewjob?jk=a1b2c3d4e5f60718"
          }
        ];
        </script>
        <div data-jk="5185d0dd8c286093"></div>
        </body></html>
        """

        let pageURL = URL(string: "https://www.indeed.com/jobs?q=iOS")!
        let dtos = try IndeedHTMLJobParser.parse(html: html, pageURL: pageURL)
        XCTAssertGreaterThanOrEqual(dtos.count, 2)

        let tuyo = try XCTUnwrap(dtos.first { $0.jobKey == "5185d0dd8c286093" })
        XCTAssertEqual(tuyo.title, "iOS Engineer")
        XCTAssertEqual(tuyo.company, "Tuyo")
        XCTAssertTrue(tuyo.url.contains("5185d0dd8c286093"))
        XCTAssertTrue(IndeedBrowseURLBuilder.isLikelyRealJobKey(tuyo.jobKey ?? ""))

        let mapped = try IndeedListingMapper.map(tuyo)
        XCTAssertEqual(mapped.company, "Tuyo")
        XCTAssertTrue(mapped.indeedURL.absoluteString.contains("viewjob"))
        XCTAssertFalse(IndeedBrowseURLBuilder.openableURL(for: mapped).usedBrowseFallback)
    }

    func testParsesDataJKHTMLCards() throws {
        let html = """
        <html><body>
          <div class="cardOutline" data-jk="abcdef0123456789">
            <h2 class="jobTitle"><a href="/viewjob?jk=abcdef0123456789">SwiftUI Developer</a></h2>
            <span data-testid="company-name">Nexlify Studio</span>
            <div data-testid="text-location">Lahore, Pakistan</div>
            <div data-testid="attribute_snippet_testid">Rs 1,800,000 - Rs 2,800,000 a year</div>
          </div>
        </body></html>
        """
        let dtos = try IndeedHTMLJobParser.parse(
            html: html,
            pageURL: URL(string: "https://pk.indeed.com/jobs")!
        )
        let job = try XCTUnwrap(dtos.first)
        XCTAssertEqual(job.jobKey, "abcdef0123456789")
        XCTAssertEqual(job.title, "SwiftUI Developer")
        XCTAssertEqual(job.company, "Nexlify Studio")
        XCTAssertEqual(job.salaryCurrency, "PKR")
    }
}

final class IndeedSearchURLBuilderTests: XCTestCase {
    func testBuildsPakistanHostFromCountry() {
        var criteria = SearchCriteria()
        criteria.jobTitle = "iOS Developer"
        criteria.country = "Pakistan"
        criteria.city = "Lahore"
        let url = IndeedSearchURLBuilder.searchURL(criteria: criteria, query: "iOS developer")
        XCTAssertEqual(url.host, "pk.indeed.com")
        XCTAssertTrue(url.path.contains("/jobs"))
        let q = URLComponents(url: url, resolvingAgainstBaseURL: false)?
            .queryItems?.first { $0.name == "q" }?.value
        XCTAssertEqual(q, "iOS Developer")
    }

    func testRemoteOnlySetsLocationRemote() {
        var criteria = SearchCriteria()
        criteria.jobTitle = "iOS"
        criteria.remoteTypes = [.remote]
        let url = IndeedSearchURLBuilder.searchURL(criteria: criteria, query: "iOS")
        let loc = URLComponents(url: url, resolvingAgainstBaseURL: false)?
            .queryItems?.first { $0.name == "l" }?.value
        XCTAssertEqual(loc, "Remote")
    }
}

final class JobListingFilterUnknownFieldTests: XCTestCase {
    func testKeepsListingWhenEmploymentUnknownButFilterSet() {
        var listing = JobListing(
            indeedJobKey: "5185d0dd8c286093",
            title: "iOS Developer",
            company: "Acme",
            location: "Remote",
            remoteType: .remote,
            employmentType: nil,
            postedAt: Date(),
            snippet: "Swift",
            indeedURL: URL(string: "https://www.indeed.com/viewjob?jk=5185d0dd8c286093")!
        )
        var criteria = SearchCriteria()
        criteria.jobTitle = "iOS"
        criteria.employmentTypes = [.fullTime]

        let filtered = JobListingFilter.filter([listing], criteria: criteria, query: "iOS")
        XCTAssertEqual(filtered.count, 1)

        listing.employmentType = .partTime
        let dropped = JobListingFilter.filter([listing], criteria: criteria, query: "iOS")
        XCTAssertTrue(dropped.isEmpty)
    }
}