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use serde::{Deserialize, Serialize};
use typed_builder::TypedBuilder;
/// A collation configuration. See the official MongoDB
/// [documentation](https://docs.mongodb.com/manual/reference/collation/) for more information on
/// each of the fields.
#[serde_with::skip_serializing_none]
#[derive(Clone, Debug, Default, Serialize, Deserialize, TypedBuilder)]
#[serde(rename_all = "camelCase")]
#[non_exhaustive]
pub struct Collation {
/// The ICU locale.
///
/// See the list of supported languages and locales [here](https://docs.mongodb.com/manual/reference/collation-locales-defaults/#collation-languages-locales).
pub locale: String,
/// The level of comparison to perform. Corresponds to [ICU Comparison Levels](http://userguide.icu-project.org/collation/concepts#TOC-Comparison-Levels).
#[builder(default)]
pub strength: Option<i32>,
/// Whether to include case comparison when `strength` is level 1 or 2.
#[builder(default)]
pub case_level: Option<bool>,
/// The sort order of case differences during tertiary level comparisons.
#[builder(default)]
pub case_first: Option<String>,
/// Whether to compare numeric strings as numbers or strings.
#[builder(default)]
pub numeric_ordering: Option<bool>,
/// Whether collation should consider whitespace and punctuation as base characters for
/// purposes of comparison.
#[builder(default)]
pub alternate: Option<String>,
/// Up to which characters are considered ignorable when `alternate` is "shifted". Has no
/// effect if `alternate` is set to "non-ignorable".
#[builder(default)]
pub max_variable: Option<String>,
/// Whether to check if text require normalization and to perform it.
#[builder(default)]
pub normalization: Option<bool>,
/// Whether strings with diacritics sort from the back of the string.
#[builder(default)]
pub backwards: Option<bool>,
}