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"""
Unit tests for MCP chart schema validation.
"""

import pytest
from pydantic import ValidationError

from superset.mcp_service.chart.schemas import (
    ColumnRef,
    TableChartConfig,
    XYChartConfig,
)


class TestTableChartConfig:
    """Test TableChartConfig validation."""

    def test_duplicate_labels_rejected(self) -> None:
        """Test that TableChartConfig rejects duplicate labels."""
        with pytest.raises(ValidationError, match="Duplicate column/metric labels"):
            TableChartConfig(
                chart_type="table",
                columns=[
                    ColumnRef(name="product_line", label="product_line"),
                    ColumnRef(name="sales", aggregate="SUM", label="product_line"),
                ],
            )

    def test_unique_labels_accepted(self) -> None:
        """Test that TableChartConfig accepts unique labels."""
        config = TableChartConfig(
            chart_type="table",
            columns=[
                ColumnRef(name="product_line", label="Product Line"),
                ColumnRef(name="sales", aggregate="SUM", label="Total Sales"),
            ],
        )
        assert len(config.columns) == 2

    def test_default_viz_type_is_table(self) -> None:
        """Test that default viz_type is 'table'."""
        config = TableChartConfig(
            chart_type="table",
            columns=[ColumnRef(name="product")],
        )
        assert config.viz_type == "table"

    def test_ag_grid_table_viz_type_accepted(self) -> None:
        """Test that viz_type='ag-grid-table' is accepted for AG Grid table."""
        config = TableChartConfig(
            chart_type="table",
            viz_type="ag-grid-table",
            columns=[
                ColumnRef(name="product_line"),
                ColumnRef(name="sales", aggregate="SUM", label="Total Sales"),
            ],
        )
        assert config.viz_type == "ag-grid-table"
        assert len(config.columns) == 2

    def test_ag_grid_table_with_all_options(self) -> None:
        """Test AG Grid table with filters and sorting."""
        from superset.mcp_service.chart.schemas import FilterConfig

        config = TableChartConfig(
            chart_type="table",
            viz_type="ag-grid-table",
            columns=[
                ColumnRef(name="product_line"),
                ColumnRef(name="quantity", aggregate="SUM", label="Total Quantity"),
                ColumnRef(name="sales", aggregate="SUM", label="Total Sales"),
            ],
            filters=[FilterConfig(column="status", op="=", value="active")],
            sort_by=["product_line"],
        )
        assert config.viz_type == "ag-grid-table"
        assert len(config.columns) == 3
        assert config.filters is not None
        assert len(config.filters) == 1
        assert config.sort_by == ["product_line"]

    def test_invalid_viz_type_rejected(self) -> None:
        """Test that invalid viz_type values are rejected."""
        from pydantic import ValidationError

        with pytest.raises(ValidationError):
            TableChartConfig(
                chart_type="table",
                viz_type="invalid-type",
                columns=[ColumnRef(name="product")],
            )


class TestXYChartConfig:
    """Test XYChartConfig validation."""

    def test_different_labels_accepted(self) -> None:
        """Test that different labels for x and y are accepted."""
        config = XYChartConfig(
            chart_type="xy",
            x=ColumnRef(name="product_line"),  # Label: "product_line"
            y=[
                ColumnRef(
                    name="product_line", aggregate="COUNT"
                ),  # Label: "COUNT(product_line)"
            ],
        )
        assert config.x.name == "product_line"
        assert config.y[0].aggregate == "COUNT"

    def test_explicit_duplicate_label_rejected(self) -> None:
        """Test that explicit duplicate labels are rejected."""
        with pytest.raises(ValidationError, match="Duplicate column/metric labels"):
            XYChartConfig(
                chart_type="xy",
                x=ColumnRef(name="product_line"),
                y=[ColumnRef(name="sales", label="product_line")],
            )

    def test_duplicate_y_axis_labels_rejected(self) -> None:
        """Test that duplicate y-axis labels are rejected."""
        with pytest.raises(ValidationError, match="Duplicate column/metric labels"):
            XYChartConfig(
                chart_type="xy",
                x=ColumnRef(name="date"),
                y=[
                    ColumnRef(name="sales", aggregate="SUM"),
                    ColumnRef(name="revenue", aggregate="SUM", label="SUM(sales)"),
                ],
            )

    def test_unique_labels_accepted(self) -> None:
        """Test that unique labels are accepted."""
        config = XYChartConfig(
            chart_type="xy",
            x=ColumnRef(name="date", label="Order Date"),
            y=[
                ColumnRef(name="sales", aggregate="SUM", label="Total Sales"),
                ColumnRef(name="profit", aggregate="AVG", label="Average Profit"),
            ],
        )
        assert len(config.y) == 2

    def test_group_by_duplicate_with_x_rejected(self) -> None:
        """Test that group_by conflicts with x are rejected."""
        with pytest.raises(ValidationError, match="Duplicate column/metric labels"):
            XYChartConfig(
                chart_type="xy",
                x=ColumnRef(name="region"),
                y=[ColumnRef(name="sales", aggregate="SUM")],
                group_by=ColumnRef(name="category", label="region"),
            )

    def test_realistic_chart_configurations(self) -> None:
        """Test realistic chart configurations."""
        # This should work - COUNT(product_line) != product_line
        config = XYChartConfig(
            chart_type="xy",
            x=ColumnRef(name="product_line"),
            y=[
                ColumnRef(name="product_line", aggregate="COUNT"),
                ColumnRef(name="sales", aggregate="SUM"),
            ],
        )
        assert config.x.name == "product_line"
        assert len(config.y) == 2

    def test_time_series_chart_configuration(self) -> None:
        """Test time series chart configuration works."""
        # This should PASS now - the chart creation logic fixes duplicates
        config = XYChartConfig(
            chart_type="xy",
            x=ColumnRef(name="order_date"),
            y=[
                ColumnRef(name="sales", aggregate="SUM", label="Total Sales"),
                ColumnRef(name="price_each", aggregate="AVG", label="Avg Price"),
            ],
            kind="line",
        )
        assert config.x.name == "order_date"
        assert config.kind == "line"

    def test_time_series_with_custom_x_axis_label(self) -> None:
        """Test time series chart with custom x-axis label."""
        config = XYChartConfig(
            chart_type="xy",
            x=ColumnRef(name="order_date", label="Order Date"),
            y=[
                ColumnRef(name="sales", aggregate="SUM", label="Total Sales"),
                ColumnRef(name="price_each", aggregate="AVG", label="Avg Price"),
            ],
            kind="line",
        )
        assert config.x.label == "Order Date"

    def test_area_chart_configuration(self) -> None:
        """Test area chart configuration."""
        config = XYChartConfig(
            chart_type="xy",
            x=ColumnRef(name="category"),
            y=[ColumnRef(name="sales", aggregate="SUM", label="Total Sales")],
            kind="area",
        )
        assert config.kind == "area"

    def test_unknown_fields_rejected(self) -> None:
        """Test that unknown fields like 'series' are rejected."""
        with pytest.raises(ValidationError, match="Extra inputs are not permitted"):
            XYChartConfig(
                chart_type="xy",
                x=ColumnRef(name="territory"),
                y=[ColumnRef(name="sales", aggregate="SUM")],
                kind="bar",
                series=ColumnRef(name="year"),
            )

    def test_group_by_accepted(self) -> None:
        """Test that group_by is the correct field for series grouping."""
        config = XYChartConfig(
            chart_type="xy",
            x=ColumnRef(name="territory"),
            y=[ColumnRef(name="sales", aggregate="SUM")],
            kind="bar",
            group_by=ColumnRef(name="year"),
        )
        assert config.group_by is not None
        assert config.group_by.name == "year"


class TestTableChartConfigExtraFields:
    """Test TableChartConfig rejects unknown fields."""

    def test_unknown_fields_rejected(self) -> None:
        """Test that unknown fields are rejected."""
        with pytest.raises(ValidationError, match="Extra inputs are not permitted"):
            TableChartConfig(
                chart_type="table",
                columns=[ColumnRef(name="product")],
                foo="bar",
            )