protify 0.1.4

mod builder;
pub use builder::DurationValidatorBuilder;

use proto_types::Duration;

use super::*;

/// Validator for the [`Duration`] type.
#[non_exhaustive]
#[derive(Clone, Debug, Default, PartialEq, Eq, Hash)]
#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
pub struct DurationValidator {
	/// Adds custom validation using one or more [`CelRule`]s to this field.
	pub cel: Vec<CelProgram>,

	/// The conditions upon which this validator should be skipped.
	pub ignore: Ignore,

	/// Specifies that the field must be set in order to be valid.
	pub required: bool,

	/// Specifies that only the values in this list will be considered valid for this field.
	pub in_: Option<SortedList<Duration>>,

	/// Specifies that the values in this list will be considered NOT valid for this field.
	pub not_in: Option<SortedList<Duration>>,

	/// Specifies that only this specific value will be considered valid for this field.
	pub const_: Option<Duration>,

	/// Specifies that the duration must be shorter than the indicated amount in order to pass validation.
	pub lt: Option<Duration>,

	/// Specifies that the duration must be equal to or shorter than the indicated amount in order to pass validation.
	pub lte: Option<Duration>,

	/// Specifies that the duration must be longer than the indicated amount in order to pass validation.
	pub gt: Option<Duration>,

	/// Specifies that the duration must be equal to or longer than the indicated amount in order to pass validation.
	pub gte: Option<Duration>,

	/// A map of custom error messages.
	pub error_messages: Option<ErrorMessages<DurationViolation>>,
}

impl Validator<Duration> for DurationValidator {
	type Target = Duration;

	impl_testing_methods!();

	#[inline(never)]
	#[cold]
	fn check_consistency(&self) -> Result<(), Vec<ConsistencyError>> {
		let mut errors = Vec::new();

		macro_rules! check_prop_some {
      ($($id:ident),*) => {
        $(self.$id.is_some()) ||*
      };
    }

		if self.const_.is_some()
			&& (!self.cel.is_empty() || check_prop_some!(in_, not_in, lt, lte, gt, gte))
		{
			errors.push(ConsistencyError::ConstWithOtherRules);
		}

		if let Some(custom_messages) = self.error_messages.as_deref() {
			let mut unused_messages: Vec<String> = Vec::new();

			for key in custom_messages.keys() {
				macro_rules! check_unused_messages {
          ($($name:ident),*) => {
            paste! {
              match key {
                DurationViolation::Required => self.required,
                DurationViolation::In => self.in_.is_some(),
                DurationViolation::Const => self.const_.is_some(),
                $(DurationViolation::[< $name:camel >] => self.$name.is_some(),)*
                _ => true,
              }
            }
          };
        }

				let is_used = check_unused_messages!(gt, gte, lt, lte, not_in);

				if !is_used {
					unused_messages.push(format!("{key:?}"));
				}
			}

			if !unused_messages.is_empty() {
				errors.push(ConsistencyError::UnusedCustomMessages(unused_messages));
			}
		}

		#[cfg(feature = "cel")]
		if let Err(e) = self.__check_cel_programs() {
			errors.extend(e.into_iter().map(ConsistencyError::from));
		}

		if let Err(e) = check_list_rules(self.in_.as_ref(), self.not_in.as_ref()) {
			errors.push(e.into());
		}

		if let Err(e) = check_comparable_rules(self.lt, self.lte, self.gt, self.gte) {
			errors.push(e);
		}

		if errors.is_empty() {
			Ok(())
		} else {
			Err(errors)
		}
	}

	fn execute_validation(
		&self,
		ctx: &mut ValidationCtx,
		val: Option<&Self::Target>,
	) -> ValidationResult {
		handle_ignore_always!(&self.ignore);

		let mut is_valid = IsValid::Yes;

		macro_rules! handle_violation {
			($id:ident, $default:expr) => {
				is_valid &= ctx.add_violation(
					ViolationKind::Duration(DurationViolation::$id),
					self.error_messages
						.as_deref()
						.and_then(|map| map.get(&DurationViolation::$id))
						.map(|m| Cow::Borrowed(m.as_ref()))
						.unwrap_or_else(|| Cow::Owned($default)),
				)?;
			};
		}

		if let Some(&val) = val {
			if let Some(const_val) = self.const_ {
				if val != const_val {
					handle_violation!(
						Const,
						format!("must be equal to {}", const_val.to_human_readable_string())
					);
				}

				// Using `const` implies no other rules
				return Ok(is_valid);
			}

			if let Some(gt) = self.gt
				&& val <= gt
			{
				handle_violation!(
					Gt,
					format!("must be longer than {}", gt.to_human_readable_string())
				);
			}

			if let Some(gte) = self.gte
				&& val < gte
			{
				handle_violation!(
					Gte,
					format!(
						"must be longer than or equal to {}",
						gte.to_human_readable_string()
					)
				);
			}

			if let Some(lt) = self.lt
				&& val >= lt
			{
				handle_violation!(
					Lt,
					format!("must be shorter than {}", lt.to_human_readable_string())
				);
			}

			if let Some(lte) = self.lte
				&& val > lte
			{
				handle_violation!(
					Lte,
					format!(
						"must be shorter than or equal to {}",
						lte.to_human_readable_string()
					)
				);
			}

			if let Some(allowed_list) = &self.in_
				&& !allowed_list.contains(&val)
			{
				handle_violation!(
					In,
					format!(
						"must be one of these values: {}",
						Duration::__format_list(allowed_list)
					)
				);
			}

			if let Some(forbidden_list) = &self.not_in
				&& forbidden_list.items.contains(&val)
			{
				handle_violation!(
					NotIn,
					format!(
						"must be one of these values: {}",
						Duration::__format_list(forbidden_list)
					)
				);
			}

			#[cfg(feature = "cel")]
			if !self.cel.is_empty() {
				let cel_ctx = ProgramsExecutionCtx {
					programs: &self.cel,
					value: val,
					ctx,
				};

				is_valid &= cel_ctx.execute_programs()?;
			}
		} else if self.required {
			handle_violation!(Required, "is required".to_string());
		}

		Ok(is_valid)
	}

	#[inline(never)]
	#[cold]
	fn schema(&self) -> Option<ValidatorSchema> {
		Some(ValidatorSchema {
			schema: self.clone().into(),
			cel_rules: self.__cel_rules(),
			imports: vec!["buf/validate/validate.proto".into()],
		})
	}
}

impl From<DurationValidator> for ProtoOption {
	#[inline(never)]
	#[cold]
	fn from(validator: DurationValidator) -> Self {
		let mut rules = OptionMessageBuilder::new();

		rules
			.maybe_set("const", validator.const_)
			.maybe_set("lt", validator.lt)
			.maybe_set("lte", validator.lte)
			.maybe_set("gt", validator.gt)
			.maybe_set("gte", validator.gte)
			.maybe_set(
				"in",
				validator
					.in_
					.map(|list| OptionValue::new_list(list)),
			)
			.maybe_set(
				"not_in",
				validator
					.not_in
					.map(|list| OptionValue::new_list(list)),
			);

		let mut outer_rules = OptionMessageBuilder::new();

		if !rules.is_empty() {
			outer_rules.set("duration", OptionValue::Message(rules.build()));
		}

		outer_rules
			.add_cel_options(validator.cel)
			.set_required(validator.required)
			.set_ignore(validator.ignore);

		Self {
			name: "(buf.validate.field)".into(),
			value: OptionValue::Message(outer_rules.build()),
		}
	}
}