"""Tests for cross-source duplicate merging (doc §19)."""
from gimme_job.proactive.engine import ProactiveEngine
from gimme_job.proactive.engines import SearchResult
from gimme_job.proactive.plan import ProactivePlan


def _res(title: str, url: str, employer: str = "ACME") -> SearchResult:
    return SearchResult(title=title, url=url, employer_hint=employer, source="x")


def test_merge_prefers_official_ats_over_aggregator():
    plan = ProactivePlan.load()
    agg = _res("Orthodontist", "https://www.indeed.com/jobs/1")
    ats = _res("Orthodontist", "https://wd5.myworkdayjobs.com/acme/job/123")
    merged = ProactiveEngine._merge_duplicates([agg, ats], plan)
    assert len(merged) == 1
    assert "myworkdayjobs.com" in merged[0].url
    assert merged[0].secondary_urls == ["https://www.indeed.com/jobs/1"]


def test_no_merge_when_different_jobs():
    plan = ProactivePlan.load()
    a = _res("Orthodontist", "https://a.org/1")
    b = _res("Dentist", "https://a.org/2")
    assert len(ProactiveEngine._merge_duplicates([a, b], plan)) == 2


def test_no_merge_when_different_employers():
    plan = ProactivePlan.load()
    a = _res("Orthodontist", "https://a.org/1", employer="Acme")
    b = _res("Orthodontist", "https://b.org/1", employer="Beta")
    assert len(ProactiveEngine._merge_duplicates([a, b], plan)) == 2


def test_single_result_kept():
    plan = ProactivePlan.load()
    a = _res("Orthodontist", "https://a.org/1")
    assert ProactiveEngine._merge_duplicates([a], plan) == [a]