import { moderatorMaximumRestrictionMs, type AuthUser } from './auth.js';

export type ModerationGame = 't5' | 't6';
export type ModerationScope = 'server' | 'game' | 'fleet';
export type ModerationActionKind = 'warn' | 'message' | 'kick' | 'announce';
export type ModerationState =
    'queued' | 'delivered' | 'confirmed' | 'failed' | 'expired' | 'unknown';

/** Legacy decisions retained for historical events and older API clients, never lifecycle states. */
export const moderationCaseOutcomes = [
    'resolved',
    'dismissed',
    'warning_issued',
    'restriction_applied',
    'no_action',
    'duplicate',
    'appeal_upheld',
    'appeal_denied'
] as const;
export const moderationCaseStatuses = ['open', 'in_review', 'closed'] as const;
export type ModerationCaseStatus = (typeof moderationCaseStatuses)[number];
export type ModerationCasePriority = 'low' | 'normal' | 'high' | 'urgent';
export const moderationCaseRelations = ['same_incident', 'appeal_of', 'duplicate_of'] as const;
export type ModerationCaseRelation = (typeof moderationCaseRelations)[number];
export const moderationCaseRelationLabels: Record<ModerationCaseRelation, string> = {
    same_incident: 'Same incident',
    appeal_of: 'Appeal of',
    duplicate_of: 'Duplicate of'
};
export const moderationCaseStatusLabels: Record<
    ModerationCaseStatus | (typeof moderationCaseOutcomes)[number] | 'escalated',
    string
> = {
    open: 'Open',
    in_review: 'In progress',
    closed: 'Closed',
    escalated: 'Escalated',
    resolved: 'Resolved',
    dismissed: 'Dismissed',
    warning_issued: 'Warning issued',
    restriction_applied: 'Restriction applied',
    no_action: 'No action needed',
    duplicate: 'Duplicate',
    appeal_upheld: 'Appeal upheld',
    appeal_denied: 'Appeal denied'
};
export function isModerationCaseOpen(status: ModerationCaseStatus): boolean {
    return status === 'open' || status === 'in_review';
}

export const moderationConcernCategories = [
    'hate_speech',
    'harassment',
    'threats',
    'safeguarding',
    'spam',
    'cheating',
    'other'
] as const;
export type ModerationConcernCategory = (typeof moderationConcernCategories)[number];
export const moderationConcernLabels: Record<ModerationConcernCategory, string> = {
    hate_speech: 'Hate speech',
    harassment: 'Harassment',
    threats: 'Threats',
    safeguarding: 'Safeguarding',
    spam: 'Spam',
    cheating: 'Cheating',
    other: 'Other'
};
export const moderationFindingOutcomes = [
    'substantiated',
    'inconclusive',
    'unsubstantiated'
] as const;
export type ModerationFindingOutcome = (typeof moderationFindingOutcomes)[number];
export const moderationFindingLabels: Record<ModerationFindingOutcome, string> = {
    substantiated: 'Substantiated',
    inconclusive: 'Inconclusive',
    unsubstantiated: 'Unsubstantiated'
};
export interface ModerationCaseAssessment {
    revision: number;
    summary: string;
    rules: string[];
    findings: {
        category: ModerationConcernCategory;
        finding: ModerationFindingOutcome;
        detail: string;
    }[];
    actor: string;
    createdAt: string;
}

export interface ModerationPlayer {
    game: ModerationGame;
    guid: string;
    name: string;
    aliases: string[];
    firstSeen: string | null;
    lastSeen: string | null;
    servers: string[];
    restrictions: number;
}
export interface ModerationSanction {
    id: string;
    caseId?: string | null;
    game: ModerationGame;
    guid: string;
    kind: 'ban' | 'mute';
    scope: ModerationScope;
    server: string | null;
    reason: string;
    note: string;
    createdAt: string;
    expiresAt: string | null;
    revokedAt: string | null;
    actorId: string;
    actor: string;
    revision: number;
    active: boolean;
}

export function canRevokeModerationRestriction(
    actor: Pick<AuthUser, 'id' | 'role'> | null | undefined,
    restriction: Pick<ModerationSanction, 'actorId' | 'scope' | 'createdAt' | 'expiresAt'>
): boolean {
    if (actor?.role === 'admin') return true;
    if (
        actor?.role !== 'moderator' ||
        actor.id !== restriction.actorId ||
        (restriction.scope !== 'server' && restriction.scope !== 'game') ||
        !restriction.expiresAt
    )
        return false;
    const duration = Date.parse(restriction.expiresAt) - Date.parse(restriction.createdAt);
    return duration > 0 && duration <= moderatorMaximumRestrictionMs;
}

export interface ModerationAction {
    id: string;
    game: ModerationGame;
    guid: string | null;
    server: string;
    kind: ModerationActionKind;
    reason: string;
    actor: string;
    createdAt: string;
    expiresAt: string;
    state: ModerationState;
    detail: string | null;
}
export interface ModerationCase {
    id: string;
    game: ModerationGame;
    guid: string;
    title: string;
    status: ModerationCaseStatus;
    priority: ModerationCasePriority;
    assigneeId: string | null;
    assignee: string | null;
    actor: string;
    createdAt: string;
    updatedAt: string;
    revision: number;
    assessment?: ModerationCaseAssessment | null;
    reviewAt?: string | null;
    reviewReason?: string;
    reviewSanctionId?: string | null;
    unreadUpdates?: number;
    evidence: {
        id: string;
        text: string;
        source: string;
        snapshot?: string | null;
        createdAt: string;
        actor: string;
    }[];
}
export interface ModerationCaseDetail {
    case: ModerationCase;
    player: ModerationPlayer;
    sanctions: ModerationSanction[];
    linkedActions?: ModerationCaseAction[];
    availableActions?: ModerationCaseAction[];
    assessment?: ModerationCaseAssessment | null;
    assessmentHistory?: ModerationCaseAssessment[];
    relatedCases?: ModerationCaseRelationship[];
    candidateCases?: ModerationCaseCandidate[];
    notifications?: ModerationCaseNotification[];
    events: ModerationEvent[];
    coverage: ModerationCoverage[];
    assignees: { id: string; username: string }[];
    checkedAt: string;
}
export type ModerationCaseReference = Pick<
    ModerationCase,
    'id' | 'title' | 'status' | 'game' | 'guid'
>;
export interface ModerationCaseRelationship {
    id: string;
    relation: ModerationCaseRelation;
    direction: 'outgoing' | 'incoming';
    case: ModerationCaseReference;
    actor: string;
    createdAt: string;
}
export interface ModerationCaseCandidate extends ModerationCaseReference {
    sharedMatch: boolean;
}
export interface ModerationCaseNotification {
    id: number;
    caseId: string;
    caseTitle: string;
    kind: 'evidence' | 'assignment';
    createdAt: string;
    readAt: string | null;
}
export interface ModerationCaseAction {
    id: string;
    type: 'restriction' | 'action';
    kind: string;
    reason: string;
    actor: string;
    createdAt: string;
    state: string;
    expiresAt: string | null;
}
export interface ModerationEvent {
    id: number;
    game: ModerationGame | null;
    guid: string | null;
    action: string;
    subjectId: string | null;
    actor: string;
    detail: string;
    createdAt: string;
}
export interface ModerationCoverage {
    server: string;
    game: ModerationGame;
    connectedAt: string | null;
    revision: number | null;
    desiredRevision: number;
    state: 'current' | 'pending' | 'offline' | 'unavailable';
    capabilities: string[];
}
export interface ModerationQuery {
    view: 'players' | 'restrictions' | 'cases' | 'history';
    q: string;
    game: '' | ModerationGame;
    guid: string;
    offset: number;
    caseStatus?: '' | 'active' | 'closed' | ModerationCaseStatus;
    priority?: '' | ModerationCasePriority;
    assignedTo?: string;
    review?: '' | 'due' | 'scheduled' | 'updates';
}
export interface ModerationOverview {
    query: ModerationQuery;
    players: ModerationPlayer[];
    sanctions: ModerationSanction[];
    cases: ModerationCase[];
    events: ModerationEvent[];
    actions: ModerationAction[];
    coverage: ModerationCoverage[];
    total: number;
    limit: number;
    checkedAt: string;
    notifications?: ModerationCaseNotification[];
    unreadCount?: number;
}

/** RCON T6 IDs are hexadecimal, while the game scripts send decimal strings. */
export function moderationGuid(
    game: ModerationGame,
    guid: string,
    source: 'game' | 'rcon' = 'game'
): string {
    const value = guid.trim();
    if (game === 't6' && source === 'rcon' && /^(?:0x)?[0-9a-f]+$/i.test(value))
        return BigInt(`0x${value.replace(/^0x/i, '')}`).toString();
    if (/^\d+$/.test(value)) return BigInt(value).toString();
    return value;
}