aviso-validators 0.4.1

Validation primitives used by aviso-server for identifier and payload checks.
Documentation 
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// (C) Copyright 2024- ECMWF and individual contributors.
//
// This software is licensed under the terms of the Apache Licence Version 2.0
// which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
// In applying this licence, ECMWF does not waive the privileges and immunities
// granted to it by virtue of its status as an intergovernmental organisation nor
// does it submit to any jurisdiction.

//! Validation rule types for field validation

use serde::Serialize;
#[cfg(feature = "openapi")]
use utoipa::ToSchema;

/// Validation rules for different field types
#[derive(serde::Deserialize, Serialize, Clone, Debug)]
#[cfg_attr(feature = "openapi", derive(ToSchema))]
#[serde(tag = "type")]
pub enum ValidationRules {
    /// String field validation with optional length constraints
    #[cfg_attr(feature = "openapi", schema(title = "StringHandler"))]
    StringHandler {
        max_length: Option<usize>,
        required: bool,
    },
    /// Date field validation with configurable output format
    #[cfg_attr(feature = "openapi", schema(title = "DateHandler"))]
    DateHandler {
        canonical_format: String,
        required: bool,
    },
    /// Enumerated value validation against allowed options
    #[cfg_attr(feature = "openapi", schema(title = "EnumHandler"))]
    EnumHandler { values: Vec<String>, required: bool },
    /// Experiment version field validation with default values
    #[cfg_attr(feature = "openapi", schema(title = "ExpverHandler"))]
    ExpverHandler {
        default: Option<String>,
        required: bool,
    },
    /// Integer validation with optional range constraints
    #[cfg_attr(feature = "openapi", schema(title = "IntHandler"))]
    IntHandler {
        range: Option<[i64; 2]>,
        required: bool,
    },
    /// Floating-point validation with optional range constraints
    #[cfg_attr(feature = "openapi", schema(title = "FloatHandler"))]
    FloatHandler {
        range: Option<[f64; 2]>,
        required: bool,
    },
    /// Time field validation supporting multiple input formats
    #[cfg_attr(feature = "openapi", schema(title = "TimeHandler"))]
    TimeHandler { required: bool },
    /// Polygon coordinate validation for spatial data
    #[cfg_attr(feature = "openapi", schema(title = "PolygonHandler"))]
    PolygonHandler { required: bool },
}

impl ValidationRules {
    /// Check if this validation rule requires the field to be present
    pub fn is_required(&self) -> bool {
        match self {
            ValidationRules::StringHandler { required, .. } => *required,
            ValidationRules::DateHandler { required, .. } => *required,
            ValidationRules::EnumHandler { required, .. } => *required,
            ValidationRules::ExpverHandler { required, .. } => *required,
            ValidationRules::IntHandler { required, .. } => *required,
            ValidationRules::FloatHandler { required, .. } => *required,
            ValidationRules::TimeHandler { required } => *required,
            ValidationRules::PolygonHandler { required } => *required,
        }
    }
}