surrealdb-sql 3.3.2

use common::fmt::EscapeKwFreeIdent;
use surrealdb_strand::Strand;
use surrealdb_types::{SqlFormat, ToSql, write_sql};

use super::DefineKind;
use crate::{Block, CoverStmts, Expr, Kind, Literal, Permission};

#[derive(Clone, Debug, PartialEq, Eq)]
#[cfg_attr(feature = "arbitrary", derive(arbitrary::Arbitrary))]
pub struct DefineFunctionStatement {
	pub kind: DefineKind,
	pub name: Strand,
	pub args: Vec<(String, Kind)>,
	pub block: Block,
	pub comment: Expr,
	pub permissions: Permission,
	pub returns: Option<Kind>,
	/// Optional GraphQL alias declared via `GRAPHQL_ALIAS "..."`.
	pub graphql_alias: Option<String>,
	/// Optional GraphQL deprecation reason declared via
	/// `GRAPHQL_DEPRECATED "..."`.
	pub graphql_deprecated: Option<String>,
}

impl ToSql for DefineFunctionStatement {
	fn fmt_sql(&self, f: &mut String, fmt: SqlFormat) {
		write_sql!(f, fmt, "DEFINE FUNCTION");
		match self.kind {
			DefineKind::Default => {}
			DefineKind::Overwrite => write_sql!(f, fmt, " OVERWRITE"),
			DefineKind::IfNotExists => write_sql!(f, fmt, " IF NOT EXISTS"),
		}
		write_sql!(f, fmt, " fn");
		for s in self.name.as_str().split("::") {
			write_sql!(f, fmt, "::");
			EscapeKwFreeIdent(s).fmt_sql(f, fmt);
		}
		write_sql!(f, fmt, "(");
		for (i, (name, kind)) in self.args.iter().enumerate() {
			if i > 0 {
				f.push_str(", ");
			}
			write_sql!(f, fmt, "${}: {kind}", EscapeKwFreeIdent(name));
		}
		f.push_str(") ");
		if let Some(ref v) = self.returns {
			write_sql!(f, fmt, "-> {v} ");
		}
		self.block.fmt_sql(f, fmt);
		if !matches!(self.comment, Expr::Literal(Literal::None)) {
			write_sql!(f, fmt, " COMMENT {}", CoverStmts(&self.comment));
		}
		if let Some(ref alias) = self.graphql_alias {
			write_sql!(f, fmt, " GRAPHQL_ALIAS {}", common::fmt::QuoteStr(alias));
		}
		if let Some(ref reason) = self.graphql_deprecated {
			write_sql!(f, fmt, " GRAPHQL_DEPRECATED {}", common::fmt::QuoteStr(reason));
		}
		let fmt = fmt.increment();
		write_sql!(f, fmt, " PERMISSIONS {}", self.permissions);
	}
}