"""Tests for JSON exporter module."""

import json

from gitea_dashboard.exporter import export_json, repos_to_dicts

from tests.helpers import make_repo as _make_repo


class TestReposToDicts:
    """Test repos_to_dicts function."""

    def test_basic_conversion(self):
        """Converts a RepoData to dict with correct values."""
        repo = _make_repo(name="test-repo", open_issues=5)
        result = repos_to_dicts([repo])

        assert len(result) == 1
        assert result[0]["name"] == "test-repo"
        assert result[0]["open_issues"] == 5

    def test_empty_list(self):
        """Empty input returns empty list."""
        assert repos_to_dicts([]) == []

    def test_preserves_all_fields(self):
        """All RepoData fields are present in the output dict."""
        repo = _make_repo(
            name="full",
            full_name="admin/full",
            description="desc",
            open_issues=2,
            is_fork=True,
            is_archived=False,
            is_mirror=True,
            latest_release={"tag_name": "v1.0", "published_at": "2026-01-01"},
            milestones=[{"title": "v2.0"}],
            last_commit_date="2026-03-10T00:00:00Z",
        )
        result = repos_to_dicts([repo])
        d = result[0]

        expected_fields = [
            "name",
            "full_name",
            "description",
            "open_issues",
            "is_fork",
            "is_archived",
            "is_mirror",
            "latest_release",
            "milestones",
            "last_commit_date",
        ]
        for field in expected_fields:
            assert field in d, f"Missing field: {field}"


class TestSanitizeControlChars:
    """Test control character sanitization in export."""

    def test_export_json_sanitizes_control_chars(self):
        """Description with control chars (0x00, 0x01, 0x02) produces valid JSON without them."""
        repo = _make_repo(description="hello\x00\x01\x02world")
        output = export_json([repo])

        parsed = json.loads(output)
        assert parsed[0]["description"] == "helloworld"

    def test_export_json_preserves_newlines_tabs(self):
        """Newlines and tabs are preserved in JSON export (they are valid JSON escapes)."""
        repo = _make_repo(description="line1\nline2\ttab")
        output = export_json([repo])

        parsed = json.loads(output)
        assert parsed[0]["description"] == "line1\nline2\ttab"

    def test_export_json_unicode_safe(self):
        """Description with emojis and accents produces valid JSON."""
        repo = _make_repo(description="Projet avec accents : e, a et emojis 🚀🎉")
        output = export_json([repo])

        parsed = json.loads(output)
        assert "🚀" in parsed[0]["description"]
        assert "accents" in parsed[0]["description"]

    def test_sanitize_name_and_full_name(self):
        """Control chars in name and full_name fields are also sanitized."""
        repo = _make_repo(name="test\x00repo", full_name="admin/test\x01repo")
        result = repos_to_dicts([repo])

        assert result[0]["name"] == "testrepo"
        assert result[0]["full_name"] == "admin/testrepo"


class TestExportJsonEdgeCases:
    """Test edge cases for JSON export."""

    def test_export_json_empty_description(self):
        """Empty description produces valid JSON."""
        repo = _make_repo(description="")
        output = export_json([repo])

        parsed = json.loads(output)
        assert parsed[0]["description"] == ""

    def test_export_json_very_long_description(self):
        """Very long description (10000 chars) produces valid JSON."""
        repo = _make_repo(description="x" * 10000)
        output = export_json([repo])

        parsed = json.loads(output)
        assert len(parsed[0]["description"]) == 10000


class TestExportJson:
    """Test export_json function."""

    def test_valid_json(self):
        """Output is valid JSON (json.loads does not raise)."""
        repos = [_make_repo(name="repo-a"), _make_repo(name="repo-b")]
        output = export_json(repos)

        parsed = json.loads(output)
        assert isinstance(parsed, list)
        assert len(parsed) == 2

    def test_indented(self):
        """JSON output is indented by default."""
        repos = [_make_repo()]
        output = export_json(repos)

        # Indented JSON has newlines and spaces
        assert "\n" in output
        assert "  " in output

    def test_empty_list(self):
        """Empty repo list produces '[]'."""
        output = export_json([])
        assert json.loads(output) == []


class TestExportMilestonesJson:
    """Test milestones JSON export."""

    def test_export_milestones_json_basic(self):
        """MilestoneData list produces valid JSON."""
        from gitea_dashboard.collector import MilestoneData
        from gitea_dashboard.exporter import export_milestones_json

        milestones = [
            MilestoneData("repo", "v1.0", 2, 8, 80, "2026-04-01T00:00:00Z", "open"),
        ]

        output = export_milestones_json(milestones)
        parsed = json.loads(output)

        assert len(parsed) == 1
        assert parsed[0]["repo_name"] == "repo"
        assert parsed[0]["title"] == "v1.0"
        assert parsed[0]["progress_pct"] == 80

    def test_export_milestones_json_empty(self):
        """Empty milestone list produces '[]'."""
        from gitea_dashboard.exporter import export_milestones_json

        output = export_milestones_json([])
        assert json.loads(output) == []