default_case_last

var DefaultCaseLastRule = rule.Rule{
	Name: "default-case-last",
	Run: func(ctx rule.RuleContext, options any) rule.RuleListeners {
		return rule.RuleListeners{
			ast.KindSwitchStatement: func(node *ast.Node) {
				switchStmt := node.AsSwitchStatement()
				if switchStmt == nil {
					return
				}

				caseBlockNode := switchStmt.CaseBlock
				if caseBlockNode == nil {
					return
				}

				caseBlock := caseBlockNode.AsCaseBlock()
				if caseBlock == nil || caseBlock.Clauses == nil {
					return
				}

				clauseNodes := caseBlock.Clauses.Nodes
				if len(clauseNodes) == 0 {
					return
				}

				for i, clause := range clauseNodes {
					if clause.Kind == ast.KindDefaultClause {

						if i != len(clauseNodes)-1 {
							ctx.ReportNode(clause, rule.RuleMessage{
								Id:          "notLast",
								Description: "Default clause should be the last clause.",
							})
						}
						return
					}
				}
			},
		}
	},
}