package mux

import (
	"testing"

	"gno.land/p/demo/uassert"
	"gno.land/p/demo/ufmt"
)

func TestRequest_GetVar(t *testing.T) {
	cases := []struct {
		handlerPath    string
		reqPath        string
		getVarKey      string
		expectedOutput string
	}{

		{"users/{id}", "users/123", "id", "123"},
		{"users/123", "users/123", "id", ""},
		{"users/{id}", "users/123", "nonexistent", ""},
		{"users/{userId}/posts/{postId}", "users/123/posts/456", "userId", "123"},
		{"users/{userId}/posts/{postId}", "users/123/posts/456", "postId", "456"},

		// Wildcards
		{"*", "users/123", "*", "users/123"},
		{"*", "users/123/posts/456", "*", "users/123/posts/456"},
		{"*", "users/123/posts/456/comments/789", "*", "users/123/posts/456/comments/789"},
		{"users/*", "users/john/posts", "*", "john/posts"},
		{"users/*/comments", "users/jane/comments", "*", "jane/comments"},
		{"api/*/posts/*", "api/v1/posts/123", "*", "v1/posts/123"},

		// wildcards and parameters
		{"api/{version}/*", "api/v1/user/settings", "version", "v1"},
	}
	for _, tt := range cases {
		name := ufmt.Sprintf("%s-%s", tt.handlerPath, tt.reqPath)
		t.Run(name, func(t *testing.T) {
			req := &Request{
				HandlerPath: tt.handlerPath,
				Path:        tt.reqPath,
			}
			output := req.GetVar(tt.getVarKey)
			uassert.Equal(t, tt.expectedOutput, output,
				"handler: %q, path: %q, key: %q",
				tt.handlerPath, tt.reqPath, tt.getVarKey)
		})
	}
}