import sys, os, json
sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), "..", "..")))
from pathlib import Path
from report.generator import ReportGenerator
from data.diff_result import VerificationRun, FieldResult


def test_json_output(tmp_path):
    vr = VerificationRun(program="BILL-CALC", status="PASS", exit_code=0,
                         field_results=[FieldResult(field_name="BR-AMT", status="PASS")])
    gen = ReportGenerator()
    path = gen.generate_json(vr, tmp_path / "result.json")
    data = json.loads(path.read_text())
    assert data["program"] == "BILL-CALC"
    assert data["status"] == "PASS"


def test_html_output(tmp_path):
    vr = VerificationRun(program="TEST", status="MISMATCH",
                         field_results=[FieldResult(field_name="F1", status="MISMATCH")])
    gen = ReportGenerator()
    path = gen.generate_html(vr, tmp_path / "report.html")
    assert path.exists()
    html = path.read_text()
    assert "MISMATCH" in html
    assert "F1" in html


def test_machine_json(tmp_path):
    vr = VerificationRun(program="TEST", status="PASS", exit_code=0)
    gen = ReportGenerator()
    path = gen.generate_machine_json(vr, tmp_path / "machine.json")
    data = json.loads(path.read_text())
    assert data["exit_code"] == 0


def test_suggestion_in_report(tmp_path):
    fr = FieldResult(field_name="BR-AMT", status="MISMATCH",
                     suggestion="Check rounding_mode: TRUNCATE vs HALF_UP")
    vr = VerificationRun(program="TEST", status="MISMATCH", field_results=[fr])
    gen = ReportGenerator()
    path = gen.generate_json(vr, tmp_path / "result.json")
    data = json.loads(path.read_text())
    assert "suggestion" in data["field_results"][0]