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use crate::{SchemaType, Schematic};
use std::collections::{BTreeSet, HashSet};

#[derive(Clone, Debug, Default)]
pub struct ArrayType {
    pub contains: Option<bool>,
    pub items_type: Box<SchemaType>,
    pub max_contains: Option<usize>,
    pub max_length: Option<usize>,
    pub min_contains: Option<usize>,
    pub min_length: Option<usize>,
    pub name: Option<String>,
    pub unique: Option<bool>,
}

macro_rules! impl_list {
    ($type:ident) => {
        impl<T: Schematic> Schematic for $type<T> {
            fn generate_schema() -> SchemaType {
                SchemaType::array(T::generate_schema())
            }
        }
    };
}

impl_list!(Vec);
impl_list!(BTreeSet);

impl<T: Schematic> Schematic for &[T] {
    fn generate_schema() -> SchemaType {
        SchemaType::array(T::generate_schema())
    }
}

impl<T: Schematic, const N: usize> Schematic for [T; N] {
    fn generate_schema() -> SchemaType {
        SchemaType::Array(ArrayType {
            items_type: Box::new(T::generate_schema()),
            max_length: Some(N),
            min_length: Some(N),
            ..ArrayType::default()
        })
    }
}

impl<T: Schematic, S> Schematic for HashSet<T, S> {
    fn generate_schema() -> SchemaType {
        SchemaType::array(T::generate_schema())
    }
}