| 7 | 7 | * @param {string} input |
| 8 | 8 | * @returns {string} |
| 9 | 9 | */ |
| 10 | | export const tournamentTally = () => { |
| 11 | | throw new Error('Remove this line and implement the function'); |
| 10 | export const tournamentTally = (input) => { |
| 11 | // Edge Case: Empty input |
| 12 | if (!input || input.trim() === '') { |
| 13 | return 'Team | MP | W | D | L | P'; |
| 14 | } |
| 15 | |
| 16 | const teams = new Map(); |
| 17 | |
| 18 | // Helper function to update team stats |
| 19 | const updateTeam = (teamName, played, won, drawn, lost, points) => { |
| 20 | if (!teams.has(teamName)) { |
| 21 | teams.set(teamName, { name: teamName, mp: 0, w: 0, d: 0, l: 0, p: 0 }); |
| 22 | } |
| 23 | const team = teams.get(teamName); |
| 24 | team.mp += played; |
| 25 | team.w += won; |
| 26 | team.d += drawn; |
| 27 | team.l += lost; |
| 28 | team.p += points; |
| 29 | }; |
| 30 | |
| 31 | const lines = input.split('\n'); |
| 32 | |
| 33 | // Edge Case: Input with only whitespace or empty lines |
| 34 | if (lines.every(line => line.trim() === '')) { |
| 35 | return 'Team | MP | W | D | L | P'; |
| 36 | } |
| 37 | |
| 38 | for (const line of lines) { |
| 39 | // Edge Case: Skip empty lines |
| 40 | if (line.trim() === '') { |
| 41 | continue; |
| 42 | } |
| 43 | |
| 44 | const parts = line.split(';'); |
| 45 | |
| 46 | // Edge Case: Invalid match format (not exactly 3 parts) |
| 47 | if (parts.length !== 3) { |
| 48 | continue; |
| 49 | } |
| 50 | |
| 51 | const [team1, team2, result] = parts; |
| 52 | |
| 53 | // Edge Case: Invalid match outcome |
| 54 | if (!['win', 'loss', 'draw'].includes(result)) { |
| 55 | continue; |
| 56 | } |
| 57 | |
| 58 | switch (result) { |
| 59 | case 'win': |
| 60 | updateTeam(team1, 1, 1, 0, 0, 3); |
| 61 | updateTeam(team2, 1, 0, 0, 1, 0); |
| 62 | break; |
| 63 | case 'loss': |
| 64 | updateTeam(team1, 1, 0, 0, 1, 0); |
| 65 | updateTeam(team2, 1, 1, 0, 0, 3); |
| 66 | break; |
| 67 | case 'draw': |
| 68 | updateTeam(team1, 1, 0, 1, 0, 1); |
| 69 | updateTeam(team2, 1, 0, 1, 0, 1); |
| 70 | break; |
| 71 | } |
| 72 | } |
| 73 | |
| 74 | // Edge Case: No valid matches found |
| 75 | if (teams.size === 0) { |
| 76 | return 'Team | MP | W | D | L | P'; |
| 77 | } |
| 78 | |
| 79 | // Convert map to array and sort |
| 80 | const sortedTeams = Array.from(teams.values()).sort((a, b) => { |
| 81 | // Sort by points descending |
| 82 | if (b.p !== a.p) { |
| 83 | return b.p - a.p; |
| 84 | } |
| 85 | // If points are equal, sort alphabetically |
| 86 | return a.name.localeCompare(b.name); |
| 87 | }); |
| 88 | |
| 89 | // Format the output |
| 90 | let output = 'Team | MP | W | D | L | P'; |
| 91 | |
| 92 | for (const team of sortedTeams) { |
| 93 | output += `\n${team.name.padEnd(30)} | ${team.mp.toString().padStart(2)} | ${team.w.toString().padStart(2)} | ${team.d.toString().padStart(2)} | ${team.l.toString().padStart(2)} | ${team.p.toString().padStart(2)}`; |
| 94 | } |
| 95 | |
| 96 | return output; |
| 12 | 97 | }; |
| 98 | |
| 99 | // Handled Edge Cases: Empty input, input with only whitespace, invalid match format, invalid match outcome, no valid matches found |