// THIS FILE IS AUTOGENERATED.

// Any changes to this file will be overwritten.

// For more information about how codegen works, see font-codegen/README.md

#[allow(unused_imports)]

use crate::codegen_prelude::*;

impl<'a> MinByteRange<'a> for Vmtx<'a> {

    fn min_byte_range(&self) -> Range<usize> {

        0..self.top_side_bearings_byte_range().end

    }

    fn min_table_bytes(&self) -> &'a [u8] {

        let range = self.min_byte_range();

        self.offset_data().as_bytes().get(range).unwrap_or_default()

    }

}

impl TopLevelTable for Vmtx<'_> {

    /// `vmtx`

    const TAG: Tag = Tag::new(b"vmtx");

}

impl ReadArgs for Vmtx<'_> {

    type Args = u16;

}

impl<'a> FontRead<'a> for Vmtx<'a> {

    fn read_with_args(data: FontData<'a>, args: u16) -> Result<Self, ReadError> {

        let number_of_long_ver_metrics = args;

        #[allow(clippy::absurd_extreme_comparisons)]

        if data.len() < Self::MIN_SIZE {

            return Err(ReadError::OutOfBounds);

        }

        let Some(data) = TableDataRef::new(data.as_bytes()) else {

            return Err(ReadError::OutOfBounds);

        };

        Ok(Self {

            data,

            number_of_long_ver_metrics,

        })

    }

}

impl<'a> Vmtx<'a> {

    /// A constructor that requires additional arguments.

    ///

    /// This type requires some external state in order to be

    /// parsed.

    pub fn read(data: FontData<'a>, number_of_long_ver_metrics: u16) -> Result<Self, ReadError> {

        let args = number_of_long_ver_metrics;

        Self::read_with_args(data, args)

    }

}

/// The fields at the start of the table, which are read directly.

#[derive(Clone, Copy, bytemuck :: AnyBitPattern)]

#[repr(C, packed)]

#[doc(hidden)]

pub struct VmtxFixedHeader {}

#[allow(clippy::absurd_extreme_comparisons)]

const _: () = assert!(std::mem::size_of::<VmtxFixedHeader>() <= Vmtx::MIN_SIZE);

/// The [vmtx (Vertical Metrics)](https://docs.microsoft.com/en-us/typography/opentype/spec/vmtx) table

#[derive(Clone)]

pub struct Vmtx<'a> {

    data: TableDataRef<'a, VmtxFixedHeader>,

    number_of_long_ver_metrics: u16,

}

#[allow(clippy::needless_lifetimes)]

impl<'a> Vmtx<'a> {

    pub const MIN_SIZE: usize = 0;

    basic_table_impls!(impl_the_methods);

    /// Paired advance height and top side bearing values for each

    /// glyph. Records are indexed by glyph ID.

    pub fn v_metrics(&self) -> &'a [LongMetric] {

        let range = self.v_metrics_byte_range();

        self.offset_data()

            .read_array(range)

            .ok()

            .unwrap_or_default()

    }

    /// Top side bearings for glyph IDs greater than or equal to numberOfLongMetrics.

    pub fn top_side_bearings(&self) -> &'a [BigEndian<i16>] {

        let range = self.top_side_bearings_byte_range();

        self.offset_data()

            .read_array(range)

            .ok()

            .unwrap_or_default()

    }

    pub(crate) fn number_of_long_ver_metrics(&self) -> u16 {

        self.number_of_long_ver_metrics

    }

    pub fn v_metrics_byte_range(&self) -> Range<usize> {

        let number_of_long_ver_metrics = self.number_of_long_ver_metrics();

        let start = 0;

        let end = start

            + (transforms::to_usize(number_of_long_ver_metrics))

                .saturating_mul(LongMetric::RAW_BYTE_LEN);

        start..end

    }

    pub fn top_side_bearings_byte_range(&self) -> Range<usize> {

        let start = self.v_metrics_byte_range().end;

        let end = start

            + self.offset_data().len().saturating_sub(start) / i16::RAW_BYTE_LEN

                * i16::RAW_BYTE_LEN;

        start..end

    }

}

#[allow(clippy::absurd_extreme_comparisons)]

const _: () = assert!(FontData::default_data_long_enough(Vmtx::MIN_SIZE));

impl Default for Vmtx<'_> {

    fn default() -> Self {

        Self {

            data: TableDataRef::new(FontData::default_table_data().as_bytes())

                .unwrap_or_else(|| unreachable!("the default data covers MIN_SIZE")),

            number_of_long_ver_metrics: Default::default(),

        }

    }

}

impl<'a> MinByteRange<'a> for VmtxExtended<'a> {

    fn min_byte_range(&self) -> Range<usize> {

        0..self.top_side_bearings_byte_range().end

    }

    fn min_table_bytes(&self) -> &'a [u8] {

        let range = self.min_byte_range();

        self.offset_data().as_bytes().get(range).unwrap_or_default()

    }

}

impl TopLevelTable for VmtxExtended<'_> {

    /// `VMTX`

    const TAG: Tag = Tag::new(b"VMTX");

}

impl ReadArgs for VmtxExtended<'_> {

    type Args = u32;

}

impl<'a> FontRead<'a> for VmtxExtended<'a> {

    fn read_with_args(data: FontData<'a>, args: u32) -> Result<Self, ReadError> {

        let number_of_long_ver_metrics = args;

        #[allow(clippy::absurd_extreme_comparisons)]

        if data.len() < Self::MIN_SIZE {

            return Err(ReadError::OutOfBounds);

        }

        let Some(data) = TableDataRef::new(data.as_bytes()) else {

            return Err(ReadError::OutOfBounds);

        };

        Ok(Self {

            data,

            number_of_long_ver_metrics,

        })

    }

}

impl<'a> VmtxExtended<'a> {

    /// A constructor that requires additional arguments.

    ///

    /// This type requires some external state in order to be

    /// parsed.

    pub fn read(data: FontData<'a>, number_of_long_ver_metrics: u32) -> Result<Self, ReadError> {

        let args = number_of_long_ver_metrics;

        Self::read_with_args(data, args)

    }

}

/// The fields at the start of the table, which are read directly.

#[derive(Clone, Copy, bytemuck :: AnyBitPattern)]

#[repr(C, packed)]

#[doc(hidden)]

pub struct VmtxExtendedFixedHeader {}

#[allow(clippy::absurd_extreme_comparisons)]

const _: () = assert!(std::mem::size_of::<VmtxExtendedFixedHeader>() <= VmtxExtended::MIN_SIZE);

/// VMTX vertical metrics (ISO/IEC 14496-22:2026, 5.6.14).

#[derive(Clone)]

pub struct VmtxExtended<'a> {

    data: TableDataRef<'a, VmtxExtendedFixedHeader>,

    number_of_long_ver_metrics: u32,

}

#[allow(clippy::needless_lifetimes)]

impl<'a> VmtxExtended<'a> {

    pub const MIN_SIZE: usize = 0;

    basic_table_impls!(impl_the_methods);

    pub fn v_metrics(&self) -> &'a [LongMetric] {

        let range = self.v_metrics_byte_range();

        self.offset_data()

            .read_array(range)

            .ok()

            .unwrap_or_default()

    }

    pub fn top_side_bearings(&self) -> &'a [BigEndian<i16>] {

        let range = self.top_side_bearings_byte_range();

        self.offset_data()

            .read_array(range)

            .ok()

            .unwrap_or_default()

    }

    pub(crate) fn number_of_long_ver_metrics(&self) -> u32 {

        self.number_of_long_ver_metrics

    }

    pub fn v_metrics_byte_range(&self) -> Range<usize> {

        let number_of_long_ver_metrics = self.number_of_long_ver_metrics();

        let start = 0;

        let end = start

            + (transforms::to_usize(number_of_long_ver_metrics))

                .saturating_mul(LongMetric::RAW_BYTE_LEN);

        start..end

    }

    pub fn top_side_bearings_byte_range(&self) -> Range<usize> {

        let start = self.v_metrics_byte_range().end;

        let end = start

            + self.offset_data().len().saturating_sub(start) / i16::RAW_BYTE_LEN

                * i16::RAW_BYTE_LEN;

        start..end

    }

}

#[allow(clippy::absurd_extreme_comparisons)]

const _: () = assert!(FontData::default_data_long_enough(VmtxExtended::MIN_SIZE));

impl Default for VmtxExtended<'_> {

    fn default() -> Self {

        Self {

            data: TableDataRef::new(FontData::default_table_data().as_bytes())

                .unwrap_or_else(|| unreachable!("the default data covers MIN_SIZE")),

            number_of_long_ver_metrics: Default::default(),

        }

    }

}