use crate::*;

// -----------------------------------------------------------------------------

#[tracable_parser]
#[packrat_parser]
pub(crate) fn checker_port_list(s: Span) -> IResult<Span, CheckerPortList> {
    let (s, a) = list(symbol(","), checker_port_item)(s)?;
    Ok((s, CheckerPortList { nodes: (a,) }))
}

#[tracable_parser]
#[packrat_parser]
pub(crate) fn checker_port_item(s: Span) -> IResult<Span, CheckerPortItem> {
    let (s, a) = many0(attribute_instance)(s)?;
    let (s, b) = opt(checker_port_direction)(s)?;
    let (s, c) = property_formal_type(s)?;
    let (s, d) = formal_port_identifier(s)?;
    let (s, e) = many0(variable_dimension)(s)?;
    let (s, f) = opt(pair(symbol("="), property_actual_arg))(s)?;
    Ok((
        s,
        CheckerPortItem {
            nodes: (a, b, c, d, e, f),
        },
    ))
}

#[tracable_parser]
#[packrat_parser]
pub(crate) fn checker_port_direction(s: Span) -> IResult<Span, CheckerPortDirection> {
    alt((
        map(keyword("input"), |x| {
            CheckerPortDirection::Input(Box::new(x))
        }),
        map(keyword("output"), |x| {
            CheckerPortDirection::Output(Box::new(x))
        }),
    ))(s)
}

#[tracable_parser]
#[packrat_parser]
pub(crate) fn checker_or_generate_item(s: Span) -> IResult<Span, CheckerOrGenerateItem> {
    alt((
        map(checker_or_generate_item_declaration, |x| {
            CheckerOrGenerateItem::CheckerOrGenerateItemDeclaration(Box::new(x))
        }),
        map(initial_construct, |x| {
            CheckerOrGenerateItem::InitialConstruct(Box::new(x))
        }),
        map(always_construct, |x| {
            CheckerOrGenerateItem::AlwaysConstruct(Box::new(x))
        }),
        map(final_construct, |x| {
            CheckerOrGenerateItem::FinalConstruct(Box::new(x))
        }),
        map(assertion_item, |x| {
            CheckerOrGenerateItem::AssertionItem(Box::new(x))
        }),
        map(continuous_assign, |x| {
            CheckerOrGenerateItem::ContinuousAssign(Box::new(x))
        }),
        map(checker_generate_item, |x| {
            CheckerOrGenerateItem::CheckerGenerateItem(Box::new(x))
        }),
    ))(s)
}

#[tracable_parser]
#[packrat_parser]
pub(crate) fn checker_or_generate_item_declaration(
    s: Span,
) -> IResult<Span, CheckerOrGenerateItemDeclaration> {
    alt((
        checker_or_generate_item_declaration_data,
        map(function_declaration, |x| {
            CheckerOrGenerateItemDeclaration::FunctionDeclaration(Box::new(x))
        }),
        map(checker_declaration, |x| {
            CheckerOrGenerateItemDeclaration::CheckerDeclaration(Box::new(x))
        }),
        map(assertion_item_declaration, |x| {
            CheckerOrGenerateItemDeclaration::AssertionItemDeclaration(Box::new(x))
        }),
        map(covergroup_declaration, |x| {
            CheckerOrGenerateItemDeclaration::CovergroupDeclaration(Box::new(x))
        }),
        map(genvar_declaration, |x| {
            CheckerOrGenerateItemDeclaration::GenvarDeclaration(Box::new(x))
        }),
        map(clocking_declaration, |x| {
            CheckerOrGenerateItemDeclaration::ClockingDeclaration(Box::new(x))
        }),
        checker_or_generate_item_declaration_clocking,
        checker_or_generate_item_declaration_disable,
        map(symbol(";"), |x| {
            CheckerOrGenerateItemDeclaration::Empty(Box::new(x))
        }),
    ))(s)
}

#[tracable_parser]
#[packrat_parser]
pub(crate) fn checker_or_generate_item_declaration_data(
    s: Span,
) -> IResult<Span, CheckerOrGenerateItemDeclaration> {
    let (s, a) = opt(rand)(s)?;
    let (s, b) = data_declaration(s)?;
    Ok((
        s,
        CheckerOrGenerateItemDeclaration::Data(Box::new(CheckerOrGenerateItemDeclarationData {
            nodes: (a, b),
        })),
    ))
}

#[tracable_parser]
#[packrat_parser]
pub(crate) fn rand(s: Span) -> IResult<Span, Rand> {
    let (s, a) = keyword("rand")(s)?;
    Ok((s, Rand { nodes: (a,) }))
}

#[tracable_parser]
#[packrat_parser]
pub(crate) fn checker_or_generate_item_declaration_clocking(
    s: Span,
) -> IResult<Span, CheckerOrGenerateItemDeclaration> {
    let (s, a) = keyword("default")(s)?;
    let (s, b) = keyword("clocking")(s)?;
    let (s, c) = clocking_identifier(s)?;
    let (s, d) = symbol(";")(s)?;
    Ok((
        s,
        CheckerOrGenerateItemDeclaration::Clocking(Box::new(
            CheckerOrGenerateItemDeclarationClocking {
                nodes: (a, b, c, d),
            },
        )),
    ))
}

#[tracable_parser]
#[packrat_parser]
pub(crate) fn checker_or_generate_item_declaration_disable(
    s: Span,
) -> IResult<Span, CheckerOrGenerateItemDeclaration> {
    let (s, a) = keyword("default")(s)?;
    let (s, b) = keyword("disable")(s)?;
    let (s, c) = keyword("iff")(s)?;
    let (s, d) = expression_or_dist(s)?;
    let (s, e) = symbol(";")(s)?;
    Ok((
        s,
        CheckerOrGenerateItemDeclaration::Disable(Box::new(
            CheckerOrGenerateItemDeclarationDisable {
                nodes: (a, b, c, d, e),
            },
        )),
    ))
}

#[tracable_parser]
#[packrat_parser]
pub(crate) fn checker_generate_item(s: Span) -> IResult<Span, CheckerGenerateItem> {
    alt((
        map(loop_generate_construct, |x| {
            CheckerGenerateItem::LoopGenerateConstruct(Box::new(x))
        }),
        map(conditional_generate_construct, |x| {
            CheckerGenerateItem::ConditionalGenerateConstruct(Box::new(x))
        }),
        map(generate_region, |x| {
            CheckerGenerateItem::GenerateRegion(Box::new(x))
        }),
        map(elaboration_system_task, |x| {
            CheckerGenerateItem::ElaborationSystemTask(Box::new(x))
        }),
    ))(s)
}