use simple_qp::constraint;
use simple_qp::problem_variables::ProblemVariables;
use simple_qp::solver::osqp_solver::OSQPSolver;
use simple_qp::solver::Solver;

fn main() {
    let mut problem = ProblemVariables::default();
    let x = problem.add_variable(Some(85.), None);
    let y = problem.add_variable(Some(4.0), None);

    let objective = (x - 42).square() + (y - 73).square() + (x - y).square();

    let constraints = vec![
        constraint!(50 <= 1.5 * (x / 3 + 2 * y) <= 100),
        constraint!(x - y == 75 + 2 * y),
    ];

    let solver = OSQPSolver::default();
    let res = solver
        .solve(problem, objective, constraints)
        .expect("Solver error");

    let x_solution = res.value(x);
    let y_solution = res.value(y);

    println!("x = {}, y = {}", x_solution, y_solution);
}