package automation

import "testing"

func TestValidateConditions_Empty(t *testing.T) {
	err := ValidateConditions(Conditions{})
	if err != nil {
		t.Fatalf("expected no error for empty conditions, got: %v", err)
	}
}

func TestValidateConditions_ValidSingleCondition(t *testing.T) {
	conditions := Conditions{
		{
			Attribute:      "status",
			FilterOperator: "equal",
			Values:         []string{"open"},
			QueryOperator:  "and",
		},
	}
	err := ValidateConditions(conditions)
	if err != nil {
		t.Fatalf("expected no error for valid condition, got: %v", err)
	}
}

func TestValidateConditions_InvalidAttribute(t *testing.T) {
	conditions := Conditions{
		{
			Attribute:      "invalid_attribute",
			FilterOperator: "equal",
			Values:         []string{"open"},
			QueryOperator:  "and",
		},
	}
	err := ValidateConditions(conditions)
	if err == nil {
		t.Fatal("expected error for invalid attribute, got nil")
	}
}

func TestValidateConditions_InvalidFilterOperator(t *testing.T) {
	conditions := Conditions{
		{
			Attribute:      "status",
			FilterOperator: "invalid_op",
			Values:         []string{"open"},
			QueryOperator:  "and",
		},
	}
	err := ValidateConditions(conditions)
	if err == nil {
		t.Fatal("expected error for invalid filter operator, got nil")
	}
}

func TestValidateConditions_InvalidQueryOperator(t *testing.T) {
	conditions := Conditions{
		{
			Attribute:      "status",
			FilterOperator: "equal",
			Values:         []string{"open"},
			QueryOperator:  "invalid_op",
		},
	}
	err := ValidateConditions(conditions)
	if err == nil {
		t.Fatal("expected error for invalid query operator, got nil")
	}
}

func TestValidateConditions_MultipleValidConditions(t *testing.T) {
	conditions := Conditions{
		{
			Attribute:      "status",
			FilterOperator: "equal",
			Values:         []string{"open"},
			QueryOperator:  "and",
		},
		{
			Attribute:      "priority",
			FilterOperator: "not_equal",
			Values:         []string{"low"},
			QueryOperator:  "and",
		},
		{
			Attribute:      "assignee_id",
			FilterOperator: "is_present",
			Values:         []string{},
			QueryOperator:  "or",
		},
	}
	err := ValidateConditions(conditions)
	if err != nil {
		t.Fatalf("expected no error for multiple valid conditions, got: %v", err)
	}
}

func TestValidateConditions_MixedValidAndInvalid(t *testing.T) {
	conditions := Conditions{
		{
			Attribute:      "status",
			FilterOperator: "equal",
			Values:         []string{"open"},
			QueryOperator:  "and",
		},
		{
			Attribute:      "bogus_attr",
			FilterOperator: "equal",
			Values:         []string{"test"},
			QueryOperator:  "and",
		},
	}
	err := ValidateConditions(conditions)
	if err == nil {
		t.Fatal("expected error when one condition has invalid attribute, got nil")
	}
}

func TestValidateConditions_AllWhitelistedAttributes(t *testing.T) {
	for attr := range WhitelistedConditionAttributes {
		conditions := Conditions{
			{
				Attribute:      attr,
				FilterOperator: "equal",
				Values:         []string{"test"},
				QueryOperator:  "and",
			},
		}
		err := ValidateConditions(conditions)
		if err != nil {
			t.Errorf("expected valid for attribute %q, got error: %v", attr, err)
		}
	}
}

func TestValidateConditions_AllWhitelistedFilterOperators(t *testing.T) {
	for op := range WhitelistedFilterOperators {
		conditions := Conditions{
			{
				Attribute:      "status",
				FilterOperator: op,
				Values:         []string{"test"},
				QueryOperator:  "and",
			},
		}
		err := ValidateConditions(conditions)
		if err != nil {
			t.Errorf("expected valid for filter_operator %q, got error: %v", op, err)
		}
	}
}

func TestValidateConditions_AllWhitelistedQueryOperators(t *testing.T) {
	for op := range WhitelistedQueryOperators {
		conditions := Conditions{
			{
				Attribute:      "status",
				FilterOperator: "equal",
				Values:         []string{"test"},
				QueryOperator:  op,
			},
		}
		err := ValidateConditions(conditions)
		if err != nil {
			t.Errorf("expected valid for query_operator %q, got error: %v", op, err)
		}
	}
}

func TestValidateConditions_ContainsOperator(t *testing.T) {
	conditions := Conditions{
		{
			Attribute:      "content",
			FilterOperator: "contains",
			Values:         []string{"help"},
			QueryOperator:  "and",
		},
	}
	err := ValidateConditions(conditions)
	if err != nil {
		t.Fatalf("expected no error for contains operator, got: %v", err)
	}
}

func TestValidateConditions_ChatwootMessageFilterOperators(t *testing.T) {
	valid := Conditions{
		{Attribute: "message_type", FilterOperator: "equal_to", Values: []string{"0"}},
		{Attribute: "private_note", FilterOperator: "not_equal_to", Values: []string{"true"}},
		{Attribute: "content", FilterOperator: "does_not_contain", Values: []string{"spam"}},
	}
	if err := ValidateConditions(valid); err != nil {
		t.Fatalf("expected Chatwoot message filter operators to validate, got: %v", err)
	}
}

func TestValidateConditions_RejectsUnsupportedMessageFilterOperators(t *testing.T) {
	tests := []Condition{
		{Attribute: "message_type", FilterOperator: "contains", Values: []string{"incoming"}},
		{Attribute: "private_note", FilterOperator: "contains", Values: []string{"true"}},
		{Attribute: "content", FilterOperator: "is_present", Values: []string{}},
	}
	for _, condition := range tests {
		if err := ValidateConditions(Conditions{condition}); err == nil {
			t.Fatalf("expected invalid operator for %s/%s", condition.Attribute, condition.FilterOperator)
		}
	}
}

func TestValidateConditions_AttributeChangedOperator(t *testing.T) {
	conditions := Conditions{
		{
			Attribute:      "status",
			FilterOperator: "attribute_changed",
			Values:         []string{"open", "resolved"},
			QueryOperator:  "and",
		},
	}
	err := ValidateConditions(conditions)
	if err != nil {
		t.Fatalf("expected no error for attribute_changed operator, got: %v", err)
	}
}

func TestValidateConditions_DoesNotContainOperator(t *testing.T) {
	conditions := Conditions{
		{
			Attribute:      "labels",
			FilterOperator: "does_not_contain",
			Values:         []string{"spam"},
			QueryOperator:  "and",
		},
	}
	err := ValidateConditions(conditions)
	if err != nil {
		t.Fatalf("expected no error for does_not_contain operator, got: %v", err)
	}
}