import FacebookCore
import FacebookLogin

let loginManager = LoginManager()
loginManager.logIn(permissions: [.publicProfile, .userLikes], from: self) { result, error in
    if let error = error {
        print("Error: \(error.localizedDescription)")
    } else if let result = result, result.isCancelled {
        print("Login cancelled")
    } else {
        print("Logged in")
    }
}

func likePost(postId: String) {
    let graphRequest = GraphRequest(
        graphPath: "/\(postId)/likes",
        parameters: [:],
        httpMethod: .post
    )
    
    graphRequest.start { _, result, error in
        if let error = error {
            print("Error liking post: \(error.localizedDescription)")
        } else {
            print("Successfully liked post")
        }
    }
}

func unlikePost(postId: String) {
    let graphRequest = GraphRequest(
        graphPath: "/\(postId)/likes",
        parameters: [:],
        httpMethod: .delete
    )
    
    graphRequest.start { _, result, error in
        if let error = error {
            print("Error unliking post: \(error.localizedDescription)")
        } else {
            print("Successfully unliked post")
        }
    }
}

func checkIfLiked(postId: String, completion: @escaping (Bool) -> Void) {
    let graphRequest = GraphRequest(
        graphPath: "/me/likes/\(postId)",
        parameters: [:],
        httpMethod: .get
    )
    
    graphRequest.start { _, result, error in
        if let error = error {
            print("Error checking like: \(error.localizedDescription)")
            completion(false)
        } else if let result = result as? [String: Any], !result.isEmpty {
            completion(true)
        } else {
            completion(false)
        }
    }
}