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// a:gradFill
use super::super::super::EnumValue;
use super::super::BooleanValue;
use super::GradientStopList;
use super::LinearGradientFill;
use super::TileFlipValues;
use super::TileRectangle;
use quick_xml::events::{BytesStart, Event};
use quick_xml::Reader;
use quick_xml::Writer;
use reader::driver::*;
use std::io::Cursor;
use writer::driver::*;

#[derive(Clone, Default, Debug)]
pub struct GradientFill {
    flip: EnumValue<TileFlipValues>,
    rotate_with_shape: BooleanValue,
    gradient_stop_list: GradientStopList,
    linear_gradient_fill: Option<LinearGradientFill>,
    tile_rectangle: Option<TileRectangle>,
}
impl GradientFill {
    pub fn get_flip(&self) -> &TileFlipValues {
        self.flip.get_value()
    }

    pub fn set_flip(&mut self, value: TileFlipValues) -> &mut GradientFill {
        self.flip.set_value(value);
        self
    }

    pub fn get_rotate_with_shape(&self) -> &bool {
        self.rotate_with_shape.get_value()
    }

    pub fn set_rotate_with_shape(&mut self, value: bool) -> &mut GradientFill {
        self.rotate_with_shape.set_value(value);
        self
    }

    pub fn get_gradient_stop_list(&self) -> &GradientStopList {
        &self.gradient_stop_list
    }

    pub fn get_gradient_stop_list_mut(&mut self) -> &mut GradientStopList {
        &mut self.gradient_stop_list
    }

    pub fn set_gradient_stop_list(&mut self, value: GradientStopList) -> &mut GradientFill {
        self.gradient_stop_list = value;
        self
    }

    pub fn get_linear_gradient_fill(&self) -> &Option<LinearGradientFill> {
        &self.linear_gradient_fill
    }

    pub fn get_linear_gradient_fill_mut(&mut self) -> &mut Option<LinearGradientFill> {
        &mut self.linear_gradient_fill
    }

    pub fn set_linear_gradient_fill(&mut self, value: LinearGradientFill) -> &mut GradientFill {
        self.linear_gradient_fill = Some(value);
        self
    }

    pub fn get_tile_rectangle(&self) -> &Option<TileRectangle> {
        &self.tile_rectangle
    }

    pub fn get_tile_rectangle_mut(&mut self) -> &mut Option<TileRectangle> {
        &mut self.tile_rectangle
    }

    pub fn set_tile_rectangle(&mut self, value: TileRectangle) -> &mut GradientFill {
        self.tile_rectangle = Some(value);
        self
    }

    pub(crate) fn set_attributes<R: std::io::BufRead>(
        &mut self,
        reader: &mut Reader<R>,
        e: &BytesStart,
    ) {
        match get_attribute(e, b"flip") {
            Some(v) => {
                self.flip.set_value_string(v);
            }
            None => {}
        }
        match get_attribute(e, b"rotWithShape") {
            Some(v) => {
                self.rotate_with_shape.set_value_string(v);
            }
            None => {}
        }

        let mut buf = Vec::new();
        loop {
            match reader.read_event_into(&mut buf) {
                Ok(Event::Empty(ref e)) => match e.name().into_inner() {
                    b"a:lin" => {
                        let mut obj = LinearGradientFill::default();
                        obj.set_attributes(reader, e);
                        self.set_linear_gradient_fill(obj);
                    }
                    b"a:tileRect" => {
                        let mut obj = TileRectangle::default();
                        obj.set_attributes(reader, e);
                        self.set_tile_rectangle(obj);
                    }
                    _ => (),
                },
                Ok(Event::Start(ref e)) => match e.name().into_inner() {
                    b"a:gsLst" => {
                        self.gradient_stop_list.set_attributes(reader, e);
                    }
                    _ => (),
                },
                Ok(Event::End(ref e)) => match e.name().into_inner() {
                    b"a:gradFill" => return,
                    _ => (),
                },
                Ok(Event::Eof) => panic!("Error not find {} end element", "a:gradFill"),
                Err(e) => panic!("Error at position {}: {:?}", reader.buffer_position(), e),
                _ => (),
            }
            buf.clear();
        }
    }

    pub(crate) fn write_to(&self, writer: &mut Writer<Cursor<Vec<u8>>>) {
        // a:gradFill
        let mut attributes: Vec<(&str, &str)> = Vec::new();
        if &self.flip.has_value() == &true {
            attributes.push(("flip", self.flip.get_value_string()));
        }
        if &self.rotate_with_shape.has_value() == &true {
            attributes.push(("rotWithShape", self.rotate_with_shape.get_value_string()));
        }
        write_start_tag(writer, "a:gradFill", attributes, false);

        // a:gsLst
        let _ = &self.gradient_stop_list.write_to(writer);

        // a:lin
        match &self.linear_gradient_fill {
            Some(v) => {
                v.write_to(writer);
            }
            None => {}
        }

        // a:tileRect
        match &self.tile_rectangle {
            Some(v) => {
                v.write_to(writer);
            }
            None => {}
        }

        write_end_tag(writer, "a:gradFill");
    }
}