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import { GraphQLError } from "../../error/GraphQLError.mjs";
import { Kind } from "../../language/kinds.mjs";
import { isTypeDefinitionNode, isTypeExtensionNode } from "../../language/predicates.mjs";
import { specifiedDirectives } from "../../type/directives.mjs";
/**
* Unique directive names per location
*
* A GraphQL document is only valid if all non-repeatable directives at
* a given location are uniquely named.
*/
export function UniqueDirectivesPerLocationRule(context) {
var uniqueDirectiveMap = Object.create(null);
var schema = context.getSchema();
var definedDirectives = schema ? schema.getDirectives() : specifiedDirectives;
for (var _i2 = 0; _i2 < definedDirectives.length; _i2++) {
var directive = definedDirectives[_i2];
uniqueDirectiveMap[directive.name] = !directive.isRepeatable;
}
var astDefinitions = context.getDocument().definitions;
for (var _i4 = 0; _i4 < astDefinitions.length; _i4++) {
var def = astDefinitions[_i4];
if (def.kind === Kind.DIRECTIVE_DEFINITION) {
uniqueDirectiveMap[def.name.value] = !def.repeatable;
}
}
var schemaDirectives = Object.create(null);
var typeDirectivesMap = Object.create(null);
return {
// Many different AST nodes may contain directives. Rather than listing
// them all, just listen for entering any node, and check to see if it
// defines any directives.
enter: function enter(node) {
if (node.directives == null) {
return;
}
var seenDirectives;
if (node.kind === Kind.SCHEMA_DEFINITION || node.kind === Kind.SCHEMA_EXTENSION) {
seenDirectives = schemaDirectives;
} else if (isTypeDefinitionNode(node) || isTypeExtensionNode(node)) {
var typeName = node.name.value;
seenDirectives = typeDirectivesMap[typeName];
if (seenDirectives === undefined) {
typeDirectivesMap[typeName] = seenDirectives = Object.create(null);
}
} else {
seenDirectives = Object.create(null);
}
for (var _i6 = 0, _node$directives2 = node.directives; _i6 < _node$directives2.length; _i6++) {
var _directive = _node$directives2[_i6];
var directiveName = _directive.name.value;
if (uniqueDirectiveMap[directiveName]) {
if (seenDirectives[directiveName]) {
context.reportError(new GraphQLError("The directive \"@".concat(directiveName, "\" can only be used once at this location."), [seenDirectives[directiveName], _directive]));
} else {
seenDirectives[directiveName] = _directive;
}
}
}
}
};
}
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