Pulled Chicken Shawarma Sandwich

Name: Pulled Chicken Shawarma Sandwich
Ingredients: 2 teaspoons kosher salt; 2 tablespoons ground cumin; 1 tablespoon ground sumac; 2 teaspoons smoked paprika; 2 teaspoons chili powder; 1 teaspoon freshly ground black pepper; 1 teaspoon garlic powder; 1 teaspoon ground turmeric; 1/4 teaspoon ground cloves; 1/4 teaspoon cayenne pepper; 1 teaspoon ground cinnamon; 1 whole chicken (4-5 pounds); 1 quart water; 4 cloves garlic, sliced; 1 onion, sliced; kosher salt to taste; juice from half a lemon