const ASM3 = require('./asm3_class')
const math = require('mathjs')

class Reactor_CSTR {
    
    constructor(initial_state){
        this.state = initial_state;
        this.asm = new ASM3();
    }

    tick_fe(time_step){ // tick reactor state using forward Euler method
        const delta = this.asm.compute_dC(this.state);
        this.state = math.add(this.state, math.multiply(delta, time_step));
        return this.state;
    }
}

// testing stuff
let state = [0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1];
const Reactor = new Reactor_CSTR(state);
console.log(Reactor.tick_fe(0.001));