import { RegularExpressions } from "./regularExpressions";
import { ITeam, IPlayer } from "../types";

/**
 * Parses the team info response from relationshipmanager.teaminfoall command
 * @param teamInfoResponse The raw response from the team info command
 * @param players List of currently connected players to filter out disconnected ones
 * @returns Object containing team list with player team references set
 */
export function parseTeamInfo(
  teamInfoResponse: string,
  players: IPlayer[] = []
): {
  teams: ITeam[];
} {
  const teams: ITeam[] = [];

  if (
    !teamInfoResponse ||
    RegularExpressions.TeamInfoNoTeams.test(teamInfoResponse)
  ) {
    return { teams };
  }

  // Create a map of player names to Player objects for quick lookup
  const playerMap = new Map<string, IPlayer>();
  players.forEach((player) => {
    playerMap.set(player.ign, player);
  });

  // Split the response into lines for processing
  const lines = teamInfoResponse.split("\n").filter((line) => line.trim());

  let currentTeamId: number | null = null;
  let currentTeamMembers: IPlayer[] = [];
  let currentTeamLeader: IPlayer | null = null;

  for (const line of lines) {
    // Check if this line is a team header
    const teamHeaderMatch = line.match(RegularExpressions.TeamInfoTeamHeader);
    if (teamHeaderMatch) {
      // Save the previous team if we have one
      if (currentTeamId !== null && currentTeamLeader !== null) {
        if (currentTeamMembers.length > 0) {
          const team: ITeam = {
            id: currentTeamId,
            leader: currentTeamLeader,
            members: currentTeamMembers,
          };

          // Set team reference on all team members
          currentTeamMembers.forEach((player) => {
            player.team = team;
          });

          teams.push(team);
        }
      }

      // Start new team
      currentTeamId = parseInt(teamHeaderMatch[1]);
      currentTeamMembers = [];
      currentTeamLeader = null;
      continue;
    }

    // Check if this line is a player entry
    const playerMatch = line.match(RegularExpressions.TeamInfoPlayer);
    if (playerMatch && currentTeamId !== null) {
      const playerName = playerMatch[1].trim();
      const player = playerMap.get(playerName);

      // Only process connected players
      if (player) {
        currentTeamMembers.push(player);

        // Check if this player is the leader
        if (line.includes("(LEADER)")) {
          currentTeamLeader = player;
        }
      }
    }
  }

  // Save the last team
  if (currentTeamId !== null && currentTeamLeader !== null) {
    if (currentTeamMembers.length > 0) {
      const team: ITeam = {
        id: currentTeamId,
        leader: currentTeamLeader,
        members: currentTeamMembers,
      };

      // Set team reference on all team members
      currentTeamMembers.forEach((player) => {
        player.team = team;
      });

      teams.push(team);
    }
  }

  return { teams };
}