import Updux from "updux";
import { action, payload } from "ts-action";
import u from "@yanick/updeep";
import { createSelector } from "reselect";

import ftl from "./ftl";
import engine, { calc_drive_reqs } from "./engine";
import weaponry from "./weaponry";
import { calc_ftl_reqs } from "./ftl/rules";
import { calc_ship_req } from "./utils";
import { candidate_ship_types } from "./ship_types";
import structure from "./structure";
import cargo from "./cargo";
import streamlining from "./streamlining";
import carrier from "./carrier";
import { ceil } from "./utils";

const set_ship_mass = action("set_ship_mass", payload());
const set_name = action("set_name", payload());

const set_ship_reqs = action("set_ship_reqs", payload());
const set_hull = action("set_hull", payload());

const set_ship_type = action("set_ship_type", payload());

const reset = action("reset");

const initial = {
  general: {
    ship_class: "",
    name: "",
    ship_type: "",
    mass: 10,
    used_mass: 0,
    cost: 10,
  },
};

const dux = new Updux({
  subduxes: { ftl, engine, weaponry, structure, cargo, streamlining, carrier },
  initial,
});

dux.addMutation(reset, () => () => initial);

dux.addMutation(set_hull, ({ rating }) => (state) => {
  return u.updateIn("structure.hull", {
    cost: 2 * rating,
    rating,
    mass: rating,
  })(state);
});
dux.addMutation(set_ship_mass, (mass) => u.updateIn("general", { mass }));
dux.addMutation(set_name, (name) => u.updateIn("general", { name }));

dux.addMutation(action("set_ship_class", payload()), (ship_class) =>
  u.updateIn("general", { ship_class })
);

dux.addMutation(set_ship_reqs, ({ cost, mass: used_mass }) =>
  u.updateIn("general", { cost, used_mass })
);

// set ship's req
dux.addSubscription((store) =>
  createSelector(calc_ship_req, (reqs) => store.dispatch(set_ship_reqs(reqs)))
);


dux.addSubscription((store) =>
  createSelector(
    (store) => store.general.mass,
    (store) => store.general.ship_type,
    (store) => store.carrier.bays,
    (mass, type, bays) => {
      console.log({ bays });
      const candidates = candidate_ship_types(mass, bays > 0);

      console.log({ candidates });
      if (candidates.length === 0) return;

      if (candidates.find(({ name }) => name === type)) return;

      store.dispatch(store.actions.set_ship_type(candidates[0].name));
    }
  )
);

dux.addMutation(set_ship_type, (type) => u.updateIn("general.ship_type", type));

dux.addSubscription((store) =>
  createSelector(
    [(ship) => ship.general.mass, (ship) => ship.ftl.type],
    (ship_mass, type) =>
      store.dispatch(ftl.actions.set_ftl_reqs(calc_ftl_reqs(type, ship_mass)))
  )
);

dux.addSubscription((store) =>
  createSelector(
    (ship) => ship.general.mass,
    (ship) => ship.structure.screens.standard,
    (ship) => ship.structure.screens.advanced,
    (mass, standard, advanced) => {
      const standard_mass = standard * Math.max(3, ceil(0.05 * mass));
      const advanced_mass = advanced * Math.max(4, ceil(0.075 * mass));

      store.dispatch(
        dux.actions.set_screens_reqs({
          mass: standard_mass + advanced_mass,
          cost: 3 * standard_mass + 4 * advanced_mass,
        })
      );
    }
  )
);

dux.addSubscription((store) =>
  createSelector(
    [
      (ship) => ship.general.mass,
      (ship) => ship.engine.rating,
      (ship) => ship.engine.advanced,
    ],
    (ship_mass, rating, advanced) =>
      store.dispatch(
        dux.actions.set_drive_reqs(calc_drive_reqs(ship_mass, rating, advanced))
      )
  )
);


export default dux.asDux;

export const actions = dux.actions;