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use crate::reference::ParameterSchemaOrContentExt;
use crate::schema::SchemaExt;
use alloc::string::String;
use alloc::string::ToString;
use openapiv3::*;

/// Extension methods for `ParameterData`
pub trait ParameterDataExt {
    /// Returns the type of the schema for this parameter, see schema documentation
    fn get_type(&self) -> &Type;

    /// Returns true if the schema has a type defined. See schema for documentation.
    fn is_type_defined(&self) -> bool;
}

impl ParameterDataExt for ParameterData {
    fn get_type(&self) -> &Type {
        self.format.item().get_type()
    }
    fn is_type_defined(&self) -> bool {
        self.format.item().is_type_defined()
    }
}

/// Extension methods for Parameter
pub trait ParameterExt {
    /// Returns "query", "header", "path" or "cookie" depending on
    /// where the parameter lives in
    fn location_string(&self) -> String;

    /// borrows the internal parameter data
    fn parameter_data(&self) -> &ParameterData;

    /// mutably borrows the internal parameter data
    fn parameter_data_mut(&mut self) -> &mut ParameterData;

    /// Returns the name of the parameter
    fn name(&self) -> &str;
}

impl ParameterExt for Parameter {
    /// Name inside the data of the parameter
    fn name(&self) -> &str {
        &self.parameter_data().name
    }

    /// Returns a string representing the enum of the parameter
    /// `Parameter::Query` becomes "query".
    fn location_string(&self) -> String {
        match self {
            Parameter::Query { .. } => "query".to_string(),
            Parameter::Header { .. } => "header".to_string(),
            Parameter::Path { .. } => "path".to_string(),
            Parameter::Cookie { .. } => "cookie".to_string(),
        }
    }

    /// Convenience method to access the internal parameter data
    /// independent from the kind of parameter we are using.
    fn parameter_data(&self) -> &ParameterData {
        match self {
            Parameter::Query { parameter_data, .. } => parameter_data,
            Parameter::Header { parameter_data, .. } => parameter_data,
            Parameter::Path { parameter_data, .. } => parameter_data,
            Parameter::Cookie { parameter_data, .. } => parameter_data,
        }
    }

    /// Convenience method to access the internal parameter data
    /// independent from the kind of paramete we are using, mutable context.
    fn parameter_data_mut(&mut self) -> &mut ParameterData {
        match self {
            Parameter::Query { parameter_data, .. } => parameter_data,
            Parameter::Header { parameter_data, .. } => parameter_data,
            Parameter::Path { parameter_data, .. } => parameter_data,
            Parameter::Cookie { parameter_data, .. } => parameter_data,
        }
    }
}