import { writable } from "svelte/store";

import buildings from "./buildings";
import { createBuilding } from "./create";
import type { Building } from "./types";
import { getTilesAtDistance } from "./hexgrid";


type Board = {
    [key: number]: {
        [key: number]: number;
    }
}


export interface VillageState {
    buildings: Building[];
    resources: {
        wood: number;
        stone: number;
        iron: number;
        food: number;
        culture: number;
    };
    villageTiles: Board;
    outsideTiles: Board;
}


export const DEFAULT_TILE = -1;
export const VILLAGE_TILE = -2;


function getInitialVillageBoard() {
    const board: Board = {
        0: { 0: DEFAULT_TILE },
    };
    for (let i = 1; i <= 2; i++) {
        getTilesAtDistance(i).forEach(tile => {
            if (board[tile.y] === undefined) {
                board[tile.y] = {};
            }

            board[tile.y][tile.x] = DEFAULT_TILE;
        });
    }
    return board;
}


function getInitialOutsideBoard() {
    const board: Board = {
        0: { 0: VILLAGE_TILE },
    };
    for (let i = 1; i <= 2; i++) {
        getTilesAtDistance(i).forEach(tile => {
            if (board[tile.y] === undefined) {
                board[tile.y] = {};
            }

            board[tile.y][tile.x] = DEFAULT_TILE;
        });
    }
    return board;
}


function getInitialState() {
    const townhall = createBuilding(buildings.townhall);
    const state = {
        buildings: [
            townhall,
        ],
        resources: {
            wood: 60,
            stone: 60,
            iron: 60,
            food: 50,
            culture: 0,
        },
        villageTiles: getInitialVillageBoard(),
        outsideTiles: getInitialOutsideBoard(),
    };

    state.villageTiles[0][0] = townhall.id;

    return state;
}


const village = writable<VillageState>(getInitialState());


export default village;