package swagger

import (
	"testing"

	"github.com/zeromicro/go-zero/tools/goctl/api/spec"
	"github.com/stretchr/testify/assert"
)

func Test_pathVariable2SwaggerVariable(t *testing.T) {
	testCases := []struct {
		input    string
		expected string
	}{
		{input: "/api/:id", expected: "/api/{id}"},
		{input: "/api/:id/details", expected: "/api/{id}/details"},
		{input: "/:version/api/:id", expected: "/{version}/api/{id}"},
		{input: "/api/v1", expected: "/api/v1"},
		{input: "/api/:id/:action", expected: "/api/{id}/{action}"},
	}

	for _, tc := range testCases {
		result := pathVariable2SwaggerVariable(testingContext(t), tc.input)
		assert.Equal(t, tc.expected, result)
	}
}

func TestArrayDefinitionsBug(t *testing.T) {
	// Test case for the bug where array of structs with useDefinitions
	// generates incorrect swagger JSON structure

	// Context with useDefinitions enabled
	ctx := Context{
		UseDefinitions: true,
	}

	// Create a test struct containing an array of structs
	testStruct := spec.DefineStruct{
		RawName: "TestStruct",
		Members: []spec.Member{
			{
				Name: "ArrayField",
				Type: spec.ArrayType{
					Value: spec.DefineStruct{
						RawName: "ItemStruct",
						Members: []spec.Member{
							{
								Name: "ItemName",
								Type: spec.PrimitiveType{RawName: "string"},
								Tag:  `json:"itemName"`,
							},
						},
					},
				},
				Tag: `json:"arrayField"`,
			},
		},
	}

	// Get properties from the struct
	properties, _ := propertiesFromType(ctx, testStruct)

	// Check that we have the array field
	assert.Contains(t, properties, "arrayField")
	arrayField := properties["arrayField"]

	// Verify the array field has correct structure
	assert.Equal(t, "array", arrayField.Type[0])
	
	// Check that we have items
	assert.NotNil(t, arrayField.Items, "Array should have items defined")
	assert.NotNil(t, arrayField.Items.Schema, "Array items should have schema")

	// The FIX: $ref should be inside items, not at schema level
	hasRef := arrayField.Ref.String() != ""
	assert.False(t, hasRef, "Schema level should NOT have $ref")
	
	// The $ref should be in the items
	hasItemsRef := arrayField.Items.Schema.Ref.String() != ""
	assert.True(t, hasItemsRef, "Items should have $ref")
	assert.Equal(t, "#/definitions/ItemStruct", arrayField.Items.Schema.Ref.String())

	// Verify there are no other properties in the items when using $ref
	assert.Nil(t, arrayField.Items.Schema.Properties, "Items with $ref should not have properties")
	assert.Empty(t, arrayField.Items.Schema.Required, "Items with $ref should not have required")
	assert.Empty(t, arrayField.Items.Schema.Type, "Items with $ref should not have type")
}

func TestArrayWithoutDefinitions(t *testing.T) {
	// Test that arrays work correctly when useDefinitions is false
	ctx := Context{
		UseDefinitions: false, // This is the default
	}

	// Create the same test struct
	testStruct := spec.DefineStruct{
		RawName: "TestStruct",
		Members: []spec.Member{
			{
				Name: "ArrayField",
				Type: spec.ArrayType{
					Value: spec.DefineStruct{
						RawName: "ItemStruct",
						Members: []spec.Member{
							{
								Name: "ItemName",
								Type: spec.PrimitiveType{RawName: "string"},
								Tag:  `json:"itemName"`,
							},
						},
					},
				},
				Tag: `json:"arrayField"`,
			},
		},
	}

	properties, _ := propertiesFromType(ctx, testStruct)

	assert.Contains(t, properties, "arrayField")
	arrayField := properties["arrayField"]

	// Should be array type
	assert.Equal(t, "array", arrayField.Type[0])

	// Should have items with full schema, no $ref
	assert.NotNil(t, arrayField.Items)
	assert.NotNil(t, arrayField.Items.Schema)

	// Should NOT have $ref at schema level
	assert.Empty(t, arrayField.Ref.String(), "Schema should not have $ref when useDefinitions is false")

	// Should NOT have $ref in items either
	assert.Empty(t, arrayField.Items.Schema.Ref.String(), "Items should not have $ref when useDefinitions is false")

	// Should have full schema properties in items
	assert.Equal(t, "object", arrayField.Items.Schema.Type[0])
	assert.Contains(t, arrayField.Items.Schema.Properties, "itemName")
	assert.Equal(t, []string{"itemName"}, arrayField.Items.Schema.Required)
}