import {BoopGame} from "@/samples/boop/types-extensions";
import {PlayerType} from "@/samples/boop/types";
import {findPartAtPosition, findPartInRegion, getLineCandidates} from "@/samples/boop/utils";
import {WIN_LENGTH} from "@/samples/boop/constants";
import {moveToRegion} from "@/core/region";

/**
 * 检查并执行小猫升级(三个小猫连线变成猫)
 */
export async function checkGraduates(game: BoopGame){
    const toUpgrade = new Set<string>();
    for(const line of getLineCandidates()){
        let whites = 0;
        let blacks = 0;
        for(const [row, col] of line){
            const part = findPartAtPosition(game, row, col);
            if (part?.player === 'white') whites++;
            else if(part?.player === 'black') blacks++;
        }
        const player = whites >= WIN_LENGTH ? 'white' : blacks >= WIN_LENGTH ? 'black' : null;
        if(!player) continue;

        for(const [row, col] of line){
            const part = findPartAtPosition(game, row, col);
            part && toUpgrade.add(part.id);
        }
    }

    await game.produceAsync(state => {
        for(const partId of toUpgrade){
            const part = state.pieces[partId];
            const [row, col] = part.position;
            const player = part.player;
            moveToRegion(part, state.regions.board, null);

            const newPart = findPartInRegion(state, '', 'cat', player);
            moveToRegion(newPart || part, null, state.regions[player], [row, col]);
        }
    });
}