from __future__ import annotations

import json
import os
import shutil
import tempfile
import unittest
from dataclasses import replace
from datetime import date
from pathlib import Path

from company_reports.publishing import ArtifactToolBuilder, AtomicReportPublisher
from company_reports.service import CompanyReportService, RunRequest
from tests.test_company_reports_service import FakeRepository, synthetic_snapshot


PROJECT_ROOT = Path(__file__).resolve().parents[1]
BUILDER_SCRIPT = PROJECT_ROOT / "company_reports" / "xlsx" / "build_workbook.mjs"
ARTIFACT_PACKAGE = (
    PROJECT_ROOT
    / "company_reports"
    / "xlsx"
    / "node_modules"
    / "@oai"
    / "artifact-tool"
)


def artifact_tool_available() -> bool:
    configured = os.environ.get("COMPANY_REPORT_ARTIFACT_TOOL_MODULE", "").strip()
    return ARTIFACT_PACKAGE.exists() or bool(configured and Path(configured).is_file())


def node_binary() -> str:
    configured = os.environ.get("COMPANY_REPORT_NODE_BINARY", "").strip()
    return configured or shutil.which("node") or ""


@unittest.skipUnless(artifact_tool_available(), "artifact-tool dependency is not installed")
class CompanyReportIntegrationTests(unittest.TestCase):
    def test_missing_and_unmatched_group_codes_export_blank_booking_room(self):
        node = node_binary()
        if not node:
            self.skipTest("Node.js is unavailable")

        class CapturingBuilder:
            def __init__(self, delegate):
                self.delegate = delegate
                self.reports = []

            def build(self, report, work_dir):
                self.reports.append(report)
                return self.delegate.build(report, work_dir)

        with tempfile.TemporaryDirectory(prefix="company-report-integration-") as temp_dir:
            project_root = Path(temp_dir) / "project"
            output_root = project_root / "outputs" / "company_reports"
            project_root.mkdir(parents=True)
            repository = FakeRepository(
                replace(
                    synthetic_snapshot(include_invalid_hana=True),
                    room_items=(),
                    group_parse_versions={},
                )
            )
            builder = CapturingBuilder(
                ArtifactToolBuilder(BUILDER_SCRIPT, node_binary=node, timeout_seconds=90)
            )
            publisher = AtomicReportPublisher(project_root, output_root)
            service = CompanyReportService(
                repository,
                builder,
                publisher,
                output_root / ".staging",
            )

            result = service.run(
                RunRequest(2026, 7, date(2026, 7, 10), ("QBD", "HanaTour"))
            )

            self.assertEqual(result.status, "success")
            self.assertEqual([item.row_count for item in result.companies], [1, 1])
            self.assertTrue(all(item.errors == () for item in result.companies))
            self.assertEqual(len(builder.reports), 2)
            qbd_report, hana_report = builder.reports
            self.assertEqual(qbd_report.periods[0].rows[0].res_comment, "SYN-GROUP-A")
            self.assertEqual(qbd_report.periods[0].rows[0].booking_room, "")
            self.assertEqual(hana_report.periods[0].rows[0].res_comment, "")
            self.assertEqual(hana_report.periods[0].rows[0].booking_room, "")
            self.assertTrue(
                (output_root / "2026" / "07" / "QBD-July-2026.xlsx").is_file()
            )
            self.assertTrue(
                (output_root / "2026" / "07" / "HanaTour-July-2026.xlsx").is_file()
            )

    def test_same_snapshot_rerun_rebuilds_full_month_with_equal_semantics(self):
        node = node_binary()
        if not node:
            self.skipTest("Node.js is unavailable")
        with tempfile.TemporaryDirectory(prefix="company-report-integration-") as temp_dir:
            project_root = Path(temp_dir) / "project"
            output_root = project_root / "outputs" / "company_reports"
            project_root.mkdir(parents=True)
            repository = FakeRepository(synthetic_snapshot())
            builder = ArtifactToolBuilder(BUILDER_SCRIPT, node_binary=node, timeout_seconds=90)
            publisher = AtomicReportPublisher(project_root, output_root)
            service = CompanyReportService(
                repository,
                builder,
                publisher,
                output_root / ".staging",
            )
            request = RunRequest(2026, 7, date(2026, 7, 10), ("QBD",))

            first = service.run(request)
            second = service.run(request)

            self.assertEqual(first.status, "success")
            self.assertEqual(second.status, "success")
            self.assertEqual(first.companies[0].row_count, 1)
            self.assertEqual(second.companies[0].row_count, 1)
            first_semantic = first.companies[0].artifact["semantic_sha256"]
            second_semantic = second.companies[0].artifact["semantic_sha256"]
            self.assertEqual(len(first_semantic), 64)
            self.assertEqual(first_semantic, second_semantic)
            self.assertEqual(
                first.companies[0].period_row_counts,
                second.companies[0].period_row_counts,
            )
            self.assertEqual(first.companies[0].version_no, 1)
            self.assertEqual(second.companies[0].version_no, 2)

            month_root = output_root / "2026" / "07"
            filename = "QBD-July-2026.xlsx"
            current = month_root / filename
            first_archive = month_root / "archive" / "v0001" / filename
            second_archive = month_root / "archive" / "v0002" / filename
            self.assertTrue(first_archive.is_file())
            self.assertTrue(second_archive.is_file())
            self.assertEqual(current.read_bytes(), second_archive.read_bytes())
            self.assertEqual(current.stat().st_mode & 0o777, 0o600)
            self.assertEqual(len(repository.activated), 2)

            first_result = json.loads(
                (month_root / "archive" / "v0001" / "QBD-v0001.result.json").read_text(
                    encoding="utf-8"
                )
            )
            second_result = json.loads(
                (month_root / "archive" / "v0002" / "QBD-v0002.result.json").read_text(
                    encoding="utf-8"
                )
            )
            self.assertEqual(
                first_result["artifact"]["semantic_sha256"],
                second_result["artifact"]["semantic_sha256"],
            )
            serialized = json.dumps(second.to_dict(), ensure_ascii=False)
            self.assertNotIn("SYN-GROUP-A", serialized)
            self.assertNotIn("SYN-BLOCK-A", serialized)


if __name__ == "__main__":
    unittest.main()