//! Bug-hunt reproductions. An `#[ignore]`d one is still open; un-ignoring it is
//! part of the fix. Open ones: `cargo test --test bug_hunt_reproductions -- --ignored`.

use improvise_io::import::csv_parser::parse_csv_bytes_with_warnings;
use improvise_io::{
    formula::AggFunc,
    persistence::{format_md, parse_md},
    workbook::Workbook,
};
#[test]
fn grouped_item_order_survives_save() {
    let mut w = Workbook::new("test");
    w.add_category("C").unwrap();
    w.add_item_in_group("C", "first", "G").unwrap();
    w.active_view_mut().set_expand_depth("C", 1);
    w.add_item("C", "second").unwrap();
    let r = parse_md(&format_md(&w)).unwrap();
    assert_eq!(
        r.model.category("C").unwrap().ordered_item_names(),
        w.model.category("C").unwrap().ordered_item_names()
    );
}
#[test]
fn aggregation_survives_save() {
    let mut w = Workbook::new("test");
    w.add_item("_Measure", "Price").unwrap();
    w.model.measure_agg.insert("Price".into(), AggFunc::Avg);
    let r = parse_md(&format_md(&w)).unwrap();
    assert!(
        matches!(r.model.measure_agg.get("Price"), Some(AggFunc::Avg)),
        "loaded aggregation: {:?}",
        r.model.measure_agg
    );
}
#[test]
fn deleted_default_stays_deleted() {
    let mut w = Workbook::new("test");
    w.create_view("Custom");
    w.delete_view("Default").unwrap();
    let r = parse_md(&format_md(&w)).unwrap();
    assert_eq!(
        r.views.keys().collect::<Vec<_>>(),
        w.views.keys().collect::<Vec<_>>()
    );
}
#[test]
fn csv_nonfinite_is_not_zero() {
    for token in ["NaN", "inf", "-inf", "1e999"] {
        let (r, _) = parse_csv_bytes_with_warnings(format!("Value\n{token}\n").as_bytes()).unwrap();
        assert_ne!(r[0]["Value"].as_f64(), Some(0.0), "{token} became zero");
        assert_eq!(
            r[0]["Value"].as_str(),
            Some(token),
            "{token} must survive as its own text, not as some other number"
        );
    }
}
#[test]
fn duplicate_csv_headers_not_silent() {
    let (records, warnings) = parse_csv_bytes_with_warnings(b"A,A\n1,2\n").unwrap();
    let fields = records[0].as_object().unwrap();
    assert_eq!(
        fields.len(),
        2,
        "both columns must survive as separate fields: {fields:?}"
    );
    assert_eq!(fields["A"], "1", "{fields:?}");
    assert_eq!(fields["A_2"], "2", "{fields:?}");
    assert!(
        warnings
            .iter()
            .any(|warning| warning.to_lowercase().contains("duplicate") && warning.contains("A")),
        "the rename must be reported: {warnings:?}"
    );
}

#[test]
fn blank_measure_still_infers_numeric() {
    use improvise_io::import::{analyzer::FieldKind, wizard::ImportPipeline};
    let (records, _) = parse_csv_bytes_with_warnings(b"Region,Revenue\nEast,10\nWest,\n").unwrap();
    let p = ImportPipeline::from_csv(records);
    let proposal = p.proposals.iter().find(|p| p.field == "Revenue").unwrap();
    assert_eq!(proposal.kind, FieldKind::Measure);
}
#[test]
fn repeated_import_coordinates_not_silently_overwritten() {
    use improvise_io::import::wizard::ImportPipeline;
    let (records, _) =
        parse_csv_bytes_with_warnings(b"Region,Revenue\nEast,10\nEast,20\n").unwrap();
    let mut pipeline = ImportPipeline::from_csv(records);
    pipeline.on_duplicate = improvise_io::import::wizard::DuplicatePolicy::Sum;
    let (wb, warnings) = pipeline.build_model_with_warnings().unwrap();
    let values: Vec<f64> = wb
        .model
        .data
        .iter_cells()
        .filter_map(|(_, v)| v.as_f64())
        .collect();
    assert_eq!(
        values,
        [30.0],
        "the two records are one cell and neither may be dropped"
    );
    let warning = warnings
        .iter()
        .find(|w| w.to_lowercase().contains("duplicate"))
        .unwrap_or_else(|| panic!("summing is a decision and is reported: {warnings:?}"));
    assert!(warning.contains("Region=East"), "{warning}");
    assert!(warning.contains("_Measure=Revenue"), "{warning}");
}
#[test]
#[ignore = "improvise-55v2: known bug reproduction"]
fn nonfinite_cell_value_survives_wire() {
    use improvise::protocol::{CellValue, Command};
    let cmd = Command::SetYanked(Some(CellValue::Number(f64::INFINITY)));
    let json = serde_json::to_string(&cmd).unwrap();
    assert!(
        serde_json::from_str::<Command>(&json).is_ok(),
        "unreadable wire: {json}"
    );
}
#[test]
#[ignore = "improvise-8l0c: known bug reproduction"]
fn formula_panel_unicode_does_not_panic() {
    use improvise::{
        protocol::FormulaCache,
        ui::{app::AppMode, formula_panel::FormulaContent, panel::Panel},
    };
    use ratatui::{buffer::Buffer, layout::Rect, widgets::Widget};
    let cache = FormulaCache {
        formulas: vec!["|é| = 1".into()],
    };
    let area = Rect::new(0, 0, 7, 5);
    let mut buffer = Buffer::empty(area);
    Panel::new(
        FormulaContent::new(&cache, &AppMode::Normal),
        &AppMode::Normal,
        0,
    )
    .render(area, &mut buffer);
}

#[test]
#[ignore = "improvise-vw47: known bug reproduction"]
fn new_view_after_delete_does_not_overwrite_survivor() {
    use improvise::{
        command::{
            cmd::{Cmd, panel::CreateAndSwitchView},
            key::{KeyCode, KeyModifiers},
        },
        ui::app::App,
    };
    let mut w = Workbook::new("test");
    w.create_view("View 2");
    w.create_view("View 3").number_format = ".4".into();
    w.delete_view("View 2").unwrap();
    let mut app = App::new(w, None);
    let effects =
        CreateAndSwitchView.execute(&app.cmd_context(KeyCode::Char('n'), KeyModifiers::NONE));
    app.apply_effects(effects);
    assert_eq!(app.model_state.workbook.views["View 3"].number_format, ".4");
    assert_eq!(app.model_state.workbook.views.len(), 3);
}
#[test]
#[ignore = "improvise-cj4u: known bug reproduction"]
fn label_stays_off_axes_in_new_view() {
    use improvise_io::view::Axis;
    let mut w = Workbook::new("test");
    w.add_label_category("Description").unwrap();
    assert_eq!(w.active_view().axis_of("Description"), Axis::None);
    assert_eq!(w.create_view("Other").axis_of("Description"), Axis::None);
}
#[test]
fn long_csv_row_is_not_silently_dropped() {
    let (records, warnings) = parse_csv_bytes_with_warnings(b"A,B\n1,2,3\n4,5\n1,2,3,4\n").unwrap();
    assert_eq!(records.len(), 3, "no row is discarded outright");
    let warning = warnings
        .iter()
        .find(|w| w.contains("more fields"))
        .unwrap_or_else(|| panic!("extra values dropped silently: {warnings:?}"));
    assert!(
        warning.contains("2 row(s)") && warning.contains("2 header"),
        "the warning counts the affected rows and the header width: {warning}"
    );
    assert!(
        warning.contains("widest row: 4"),
        "the warning says how much was dropped: {warning}"
    );
    let (_, clean) = parse_csv_bytes_with_warnings(b"A,B\n1,2\n").unwrap();
    assert!(
        clean.is_empty(),
        "control: a full row is not long: {clean:?}"
    );
}
// Passing control: embedded carriage returns already survive persistence.
#[test]
fn literal_cr_name_survives_roundtrip() {
    let mut w = Workbook::new("test");
    w.add_category("C").unwrap();
    w.add_item("C", "x\ry").unwrap();
    let text = format_md(&w);
    let r = parse_md(&text).unwrap();
    assert_eq!(
        r.model.category("C").unwrap().ordered_item_names(),
        vec!["x\ry"]
    );
}
#[test]
fn scalar_cell_survives_roundtrip() {
    use improvise_io::model::cell::{CellKey, CellValue};
    let mut w = Workbook::new("test");
    w.model
        .set_cell(CellKey::new(vec![]), CellValue::Number(42.0));
    let text = format_md(&w);
    assert!(
        parse_md(&text).is_ok(),
        "writer emitted unreadable document: {text}"
    );
}

fn revenue_book() -> Workbook {
    use improvise_io::model::cell::{CellKey, CellValue};
    let mut w = Workbook::new("T");
    w.add_category("Region").unwrap();
    w.add_item("Region", "East").unwrap();
    w.add_item("_Measure", "Revenue").unwrap();
    w.model.set_cell(
        CellKey::new(vec![
            ("Region".into(), "East".into()),
            ("_Measure".into(), "Revenue".into()),
        ]),
        CellValue::Number(10.0),
    );
    w
}
#[test]
fn sum_of_derived_measure_agrees_with_identity_expression() {
    use improvise_io::{formula::parse_formula, model::cell::CellKey};
    let mut w = revenue_book();
    for raw in [
        "Double = Revenue * 2",
        "A = SUM(Double)",
        "B = SUM(Double + 0)",
    ] {
        w.model.add_formula(parse_formula(raw, "_Measure").unwrap());
    }
    let key = CellKey::new(vec![("Region".into(), "East".into())]);
    let a = w.model.evaluate(&key.clone().with("_Measure", "A"));
    let b = w.model.evaluate(&key.with("_Measure", "B"));
    assert_eq!(a, b);
}
#[test]
fn unknown_aggregate_reference_is_not_all_measures() {
    use improvise_io::{
        formula::parse_formula,
        model::cell::{CellKey, CellValue},
    };
    let mut w = revenue_book();
    w.model
        .add_formula(parse_formula("Total = SUM(Typo)", "_Measure").unwrap());
    let key = CellKey::new(vec![
        ("Region".into(), "East".into()),
        ("_Measure".into(), "Total".into()),
    ]);
    assert!(
        matches!(w.model.evaluate(&key), Some(CellValue::Error(_))),
        "actual {:?}",
        w.model.evaluate(&key)
    );
}
#[test]
#[ignore = "improvise-3b2b: known bug reproduction"]
fn category_panel_cannot_delete_required_virtual() {
    use improvise::{
        command::{
            cmd::{Cmd, panel::DeleteCategoryAtCursor},
            key::{KeyCode, KeyModifiers},
        },
        ui::app::App,
    };
    let mut app = App::new(revenue_book(), None);
    app.view_state.cat_panel_cursor = 0;
    let fx =
        DeleteCategoryAtCursor.execute(&app.cmd_context(KeyCode::Char('d'), KeyModifiers::NONE));
    app.apply_effects(fx);
    let fx = improvise::command::cmd::grid::ToggleRecordsMode
        .execute(&app.cmd_context(KeyCode::Char('r'), KeyModifiers::NONE));
    app.apply_effects(fx);
    assert!(
        app.layout.is_records_mode(),
        "deleting _Index prevents records mode; status {}",
        app.view_state.status_msg
    );
}
#[test]
#[ignore = "improvise-8l0c: known bug reproduction"]
fn formula_panel_handles_zero_inner_width() {
    use improvise::{
        protocol::FormulaCache,
        ui::{app::AppMode, formula_panel::FormulaContent, panel::Panel},
    };
    use ratatui::{buffer::Buffer, layout::Rect, widgets::Widget};
    let cache = FormulaCache {
        formulas: vec!["A = 1".into()],
    };
    let area = Rect::new(0, 0, 2, 5);
    let mut buffer = Buffer::empty(area);
    Panel::new(
        FormulaContent::new(&cache, &AppMode::Normal),
        &AppMode::Normal,
        0,
    )
    .render(area, &mut buffer);
}

#[test]
fn save_with_unfinished_record_is_readable() {
    use improvise::{
        command::{
            cmd::{
                Cmd,
                grid::{AddRecordRow, ToggleRecordsMode},
            },
            key::{KeyCode, KeyModifiers},
        },
        ui::app::App,
    };
    let mut app = App::new(revenue_book(), None);
    let fx = ToggleRecordsMode.execute(&app.cmd_context(KeyCode::Char('r'), KeyModifiers::NONE));
    app.apply_effects(fx);
    assert!(app.layout.is_records_mode());
    let fx = AddRecordRow.execute(&app.cmd_context(KeyCode::Char('o'), KeyModifiers::NONE));
    app.apply_effects(fx);
    let text = format_md(&app.model_state.workbook);
    assert!(parse_md(&text).is_ok(), "saved unparseable file: {text}");
}

#[test]
fn circular_formula_not_a_plausible_cached_number() {
    use improvise_io::{
        formula::parse_formula,
        model::{
            Aggregation,
            cell::{CellKey, CellValue},
        },
    };
    let mut w = revenue_book();
    w.model
        .add_formula(parse_formula("Revenue = Revenue + 1", "_Measure").unwrap());
    let key = CellKey::new(vec![
        ("Region".into(), "East".into()),
        ("_Measure".into(), "Revenue".into()),
    ]);
    assert!(matches!(w.model.evaluate(&key), Some(CellValue::Error(_))));
    w.model
        .recompute_formulas(&["_Index".into(), "_Dim".into()]);
    let actual = w.model.evaluate_aggregated(&key, Aggregation::OverHidden);
    assert!(
        matches!(actual, Some(CellValue::Error(_))),
        "circular formula became {actual:?}"
    );
}
#[test]
fn wide_cell_clamps_without_overflow() {
    use improvise::{
        model::cell::{CellKey, CellValue},
        ui::app::App,
    };
    // 65535 overflows the `+ 1` gap; 65536 truncates the `as u16` cast to 0.
    // 20 is the ordinary case the cap must leave alone, gap included.
    for (len, expect) in [
        (20usize, 21u16),
        (65535, improvise::ui::viewport::MAX_COL_WIDTH),
        (65536, improvise::ui::viewport::MAX_COL_WIDTH),
    ] {
        let mut w = revenue_book();
        w.model.set_cell(
            CellKey::new(vec![
                ("Region".into(), "East".into()),
                ("_Measure".into(), "Revenue".into()),
            ]),
            CellValue::Text("x".repeat(len)),
        );
        let app = App::new(w, None);
        let widths = improvise::ui::viewport::compute_col_widths(
            &app.model_state.workbook.model,
            &app.layout,
            &improvise::format::FormatPlan::uniform(""),
        );
        assert_eq!(
            widths,
            vec![expect],
            "a {len}-column value must yield exactly one column, of width {expect}"
        );
    }
}
#[test]
fn ordinary_controls() {
    use improvise_io::import::{analyzer::FieldKind, wizard::ImportPipeline};
    let (records, warnings) =
        parse_csv_bytes_with_warnings(b"Region,Revenue\nEast,10\nWest,20\n").unwrap();
    assert!(warnings.is_empty());
    let p = ImportPipeline::from_csv(records);
    assert_eq!(
        p.proposals
            .iter()
            .find(|p| p.field == "Revenue")
            .unwrap()
            .kind,
        FieldKind::Measure
    );
    let (w, warnings) = p.build_model_with_warnings().unwrap();
    assert!(warnings.is_empty());
    assert_eq!(
        w.model
            .data
            .iter_cells()
            .filter_map(|(_, v)| v.as_f64())
            .sum::<f64>(),
        30.0
    );
    assert!(parse_md(&format_md(&w)).is_ok());
}

// Passing control (improvise-nvq4): quote_name already pipe-quotes a name
// containing `/`, so hidden/collapsed round-trip. The report did not reproduce.
#[test]
fn slash_in_hidden_name_survives_roundtrip() {
    let mut w = Workbook::new("test");
    w.add_category("C").unwrap();
    w.add_item("C", "A/B").unwrap();
    w.add_item_in_group("C", "x", "G/H").unwrap();
    w.active_view_mut().set_expand_depth("C", 1);
    w.active_view_mut().hide_item("C", "A/B");
    w.active_view_mut().toggle_group_collapse("C", &["G/H"]);
    let text = format_md(&w);
    let r = parse_md(&text).unwrap_or_else(|e| panic!("unparseable: {e}\n{text}"));
    assert!(
        r.active_view().is_hidden("C", "A/B"),
        "hidden lost:\n{text}"
    );
    assert!(
        r.active_view().is_group_collapsed("C", &["G/H"]),
        "collapsed lost:\n{text}"
    );
}