import { WasmPipeRunner,Pipes} from '../src/pkg/rooc.js'


const model = `
//This is a simple diet problem
//minimize the cost of the diet
min sum((cost, i) in enumerate(C)) { cost * x_i }
s.t.  
    //the diet must have at least of nutrient j
    sum(i in 0..F) { a[i][j] * x_i} >= Nmin[j] for j in 0..len(Nmin)
    //the diet must have at most of nutrient j
    sum(i in 0..F) { a[i][j] * x_i } <= Nmax[j] for j in 0..len(Nmax)
    //bound the amount of each serving of food i
    x_i <= Fmax[i] for i in 0..N
    x_i >= Fmin[i] for i in 0..N
where    
    // Cost of chicken, rice, avocado
    let C = [1.5, 0.5, 2.0]
    // Min and max of: protein, carbs, fats
    let Nmin = [50, 200, 0] 
    let Nmax = [150, 300, 70]
    // Min and max servings of each food    
    let Fmin = [1, 1, 1] 
    let Fmax = [5, 5, 5]
    let a = [
        //protein, carbs, fats        
        [30, 0, 5], // Chicken
        [2, 45, 0], // Rice
        [2, 15, 20] // Avocado    
    ]
    // Number of foods
    let F = len(a)
    // Number of nutrients
    let N = len(Nmax)
define
    x_i as NonNegativeReal for i in 0..N  
`

const pipes = [
    Pipes.CompilerPipe,
    Pipes.PreModelPipe,
    Pipes.ModelPipe,
    Pipes.LinearModelPipe,
    Pipes.RealPipe
]
const res = WasmPipeRunner.new_wasm(pipes).wasm_run_from_string(model, [])

console.log(res[res.length - 1])