import type { BetaPlan, BetaRequirement } from './beta-plan.js';

const count = (n: number, word: string) => `${n} ${word}${n === 1 ? '' : 's'}`;
const duration = (minutes: number) => minutes >= 60 && minutes % 60 === 0 ? count(minutes / 60, 'hour') : count(minutes, 'minute');
export const presetDescriptions: Record<string, string> = {
    'Quick smoke test': 'A quick check that the server starts and stays healthy.',
    'Gameplay validation': 'Prove the build through real matches and populated playtime.',
    'Long soak': 'Exercise stability and participation over a longer test.'
};
export function requirementSummary(r: BetaRequirement): string {
    const players = r.minPlayers > 1 ? ` with at least ${r.minPlayers} players` : ' with players present';
    switch (r.kind) {
        case 'round': return `Reach round ${r.target}${players}`;
        case 'matches': return `Complete ${count(r.target, 'match').replace('matchs', 'matches')}${r.minRound ? ` reaching round ${r.minRound}` : ''}${r.minPlayers > 1 ? players : ''}${r.minMinutes ? ` lasting at least ${duration(r.minMinutes)} each` : ''}`;
        case 'populated-minutes': return `Accumulate ${duration(r.target)}${players}`;
        case 'player-hours': return `Accumulate ${r.target} player-hours${r.minPlayers > 1 ? players : ''}`;
        case 'population': return `Reach ${count(r.target, 'player')} online`;
        case 'sustained-population': return `Keep at least ${count(r.minPlayers, 'player')} online for ${duration(r.target)}`;
        case 'healthy-minutes': return `Stay continuously healthy for ${duration(r.target)}`;
        case 'failure-budget': return r.target === 0 ? 'Allow no health outages' : `Allow at most ${count(r.target, 'health outage')}`;
        case 'recovery': return `Repeat the checks after ${count(r.target, 'recovery restart')}`;
        case 'manual': return r.label;
    }
}
export function coverageSummary(plan: BetaPlan): string {
    return plan.scope === 'all' ? 'Every selected server' : plan.scope === 'quorum' ? `At least ${count(plan.quorum, 'selected server')}`
        : plan.scope === 'map' ? 'One server per selected map' : plan.scope === 'game' ? 'One server per selected game' : 'One server per game / map';
}
export function needsGameTelemetry(r: BetaRequirement): boolean {
    return ['round', 'matches', 'population', 'populated-minutes', 'player-hours', 'sustained-population'].includes(r.kind);
}
export function requirementCategory(r: BetaRequirement): string {
    return r.kind === 'manual' ? 'Tester sign-off' : ['healthy-minutes', 'failure-budget'].includes(r.kind) ? 'Continuous check' : 'Milestone';
}