Dune/game/leader-skill-profile.ts

import { FACTIONS } from './catalog';
import { mixedE3NexusRosterProfile } from './faction-module-profile';
import { classicDiscoveryLeaderSkillsProfile } from './discovery-module-profile';

/** Public configuration only; never gate a skill on a hidden card or random deal. */
export type LeaderSkillProfile = {
  expansions: readonly string[];
  advanced?: boolean;
  players?: readonly { faction: string }[];
  homeworlds?: unknown;
  nexusCards?: unknown;
  discoveries?: unknown;
  discoveryEnabled?: unknown;
  discoveryStash?: unknown;
  greatMaker?: unknown;
  strongholdCards?: unknown;
  techTokens?: unknown;
  ecazTreachery?: unknown;
  semutaPreview?: unknown;
  moritaniAssassinatePreview?: unknown;
  advancedPreview?: unknown;
  kullPreview?: unknown;
  nexusKullPreview?: unknown;
  guildBetrayalPreview?: unknown;
  richeseBetrayalPreview?: unknown;
  nexusIxianReplacementPreview?: unknown;
  nexusIxianBetrayalPreview?: unknown;
  nexusHarkonnenBetrayalPreview?: unknown;
  mentatQuestionPreview?: unknown;
  spiceBankerIncomePreview?: unknown;
};

export function noOtherLeaderSkillModules(game: LeaderSkillProfile): boolean {
  return !game.homeworlds && !game.nexusCards && !game.discoveries &&
    !game.discoveryEnabled && !game.strongholdCards && !game.techTokens && !game.ecazTreachery;
}

function nexusLeaderSkillModulesSupported(game: LeaderSkillProfile, assassination = false, discovery = false): boolean {
  return !!game.nexusCards && typeof game.advanced === 'boolean' &&
    !!game.players && game.players.length >= 2 && game.players.length <= 6 &&
    ((discovery && game.discoveryEnabled === true) ||
      (!game.discoveries && !game.discoveryEnabled && !game.discoveryStash && !game.greatMaker)) &&
    (!game.techTokens || game.players.length >= 3) &&
    (!game.strongholdCards || game.advanced === true) &&
    !game.ecazTreachery && !game.semutaPreview &&
    (!game.moritaniAssassinatePreview || assassination) &&
    !game.advancedPreview && !game.kullPreview && !game.nexusKullPreview &&
    !game.guildBetrayalPreview && !game.richeseBetrayalPreview &&
    !game.nexusIxianReplacementPreview && !game.nexusIxianBetrayalPreview &&
    !game.nexusHarkonnenBetrayalPreview && !game.mentatQuestionPreview &&
    !game.spiceBankerIncomePreview;
}

/** Fresh classic Nexus/Skills, optionally Homeworlds/Discovery/Tech/Advanced Strongholds. */
export function classicNexusLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  if (game.expansions.length || !nexusLeaderSkillModulesSupported(game, false, true)) return false;
  const players = game.players!;
  for (let i = 0; i < players.length; i++) {
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
    let classic = false;
    for (const faction of FACTIONS)
      if (faction.id === players[i].faction) { classic = faction.expansion === 'base'; break; }
    if (!classic) return false;
  }
  return true;
}

/** Both original natives in one E1/E2 family, optionally Homeworlds/Discovery/Tech/Strongholds. */
export function pairedNexusLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  if (game.expansions.length !== 1 || !nexusLeaderSkillModulesSupported(game, false, true)) return false;
  const expansion = game.expansions[0];
  if (expansion !== 'ix' && expansion !== 'choam') return false;
  const primary = expansion === 'ix' ? 'ixians' : 'choam';
  const secondary = expansion === 'ix' ? 'tleilaxu' : 'richese';
  const players = game.players!;
  let hasPrimary = false, hasSecondary = false;
  for (let i = 0; i < players.length; i++) {
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
    let family: string | undefined;
    for (const faction of FACTIONS)
      if (faction.id === players[i].faction) { family = faction.expansion; break; }
    if (family !== 'base' && family !== expansion) return false;
    if (players[i].faction === primary) hasPrimary = true;
    if (players[i].faction === secondary) hasSecondary = true;
  }
  return hasPrimary && hasSecondary;
}

/** Exactly one original E1/E2 native with classics; paired/mixed rosters stay separate. */
export function singleE1E2NexusLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  if (game.expansions.length !== 1 || !nexusLeaderSkillModulesSupported(game, false, true)) return false;
  const expansion = game.expansions[0];
  if (expansion !== 'ix' && expansion !== 'choam') return false;
  const players = game.players!;
  let native = 0;
  for (let i = 0; i < players.length; i++) {
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
    let family: string | undefined;
    for (const faction of FACTIONS)
      if (faction.id === players[i].faction) { family = faction.expansion; break; }
    if (family !== 'base' && family !== expansion) return false;
    if (family === expansion) native++;
  }
  return native === 1;
}

/** One original E3 native with classics and optional Homeworlds/Discovery; no shared Duke or mixed family. */
export function standaloneE3NexusLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  if (game.expansions.length !== 1 || game.expansions[0] !== 'ecaz' ||
    !nexusLeaderSkillModulesSupported(game, game.advanced === true, true)) return false;
  const players = game.players!;
  let native: 'ecaz' | 'moritani' | null = null, harkonnen = false;
  for (let i = 0; i < players.length; i++) {
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
    const player = players[i];
    if (player.faction === 'ecaz' || player.faction === 'moritani') {
      if (native !== null) return false;
      native = player.faction;
    } else {
      let classic = false;
      for (const faction of FACTIONS)
        if (faction.id === player.faction) { classic = faction.expansion === 'base'; break; }
      if (!classic) return false;
      if (player.faction === 'harkonnen') harkonnen = true;
    }
  }
  return native !== null && !(game.advanced && harkonnen) &&
    (native === 'moritani' || !game.moritaniAssassinatePreview);
}

/** Original E1/E2 natives from both selected families with classics and Nexus. */
export function mixedE1E2NexusLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  if (game.expansions.length !== 2 || !game.expansions.includes('ix') ||
    !game.expansions.includes('choam') || !nexusLeaderSkillModulesSupported(game, false, true)) return false;
  const players = game.players!;
  let ix = false, choam = false;
  for (let i = 0; i < players.length; i++) {
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
    let family: string | undefined;
    for (const faction of FACTIONS)
      if (faction.id === players[i].faction) { family = faction.expansion; break; }
    if (family !== 'base' && family !== 'ix' && family !== 'choam') return false;
    if (family === 'ix') ix = true;
    if (family === 'choam') choam = true;
  }
  return ix && choam;
}

/** Both original E3 natives and classic opponents; the shared Duke is never a training disc. */
export function pairedE3NexusLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  if (game.expansions.length !== 1 || game.expansions[0] !== 'ecaz' ||
    !nexusLeaderSkillModulesSupported(game, game.advanced === true, true)) return false;
  const players = game.players!;
  let ecaz = false, moritani = false;
  for (let i = 0; i < players.length; i++) {
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
    const player = players[i];
    if (player.faction === 'ecaz') ecaz = true;
    else if (player.faction === 'moritani') moritani = true;
    else {
      if (game.advanced && player.faction === 'harkonnen') return false;
      let classic = false;
      for (const faction of FACTIONS)
        if (faction.id === player.faction) { classic = faction.expansion === 'base'; break; }
      if (!classic) return false;
    }
  }
  return ecaz && moritani;
}

/** Original two/three selected families with native E3, Nexus and optional original modules. */
export function mixedE3NexusLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  return nexusLeaderSkillModulesSupported(game, game.advanced === true, true) &&
    mixedE3NexusRosterProfile(game, true);
}

/** Discovery keeps original native roster predicates; only this module envelope
 * differs. Live token/entry/Great Maker frames are original consumers. */
function discoveryLeaderSkillModulesSupported(game: LeaderSkillProfile): boolean {
  if (game.homeworlds)
    return game.discoveryEnabled === true && homeworldLeaderSkillModulesSupported(game);
  const players = game.players;
  return typeof game.advanced === 'boolean' && game.discoveryEnabled === true &&
    !!players && players.length >= 2 && players.length <= 6 &&
    (!game.techTokens || players.length >= 3) &&
    (!game.strongholdCards || game.advanced) &&
    game.expansions.length >= 1 && game.expansions.length <= 2 &&
    !game.homeworlds && !game.nexusCards && !game.ecazTreachery && !game.semutaPreview &&
    !game.advancedPreview && !game.kullPreview && !game.nexusKullPreview &&
    !game.guildBetrayalPreview && !game.richeseBetrayalPreview &&
    !game.nexusIxianReplacementPreview && !game.nexusIxianBetrayalPreview &&
    !game.nexusHarkonnenBetrayalPreview && !game.mentatQuestionPreview &&
    !game.spiceBankerIncomePreview;
}

/** E1/E2 native skills may add Tech and Advanced Strongholds; original roster/decks remain. */
function nativeLeaderSkillModulesSupported(game: LeaderSkillProfile): boolean {
  if (game.homeworlds) return homeworldLeaderSkillModulesSupported(game);
  if (noOtherLeaderSkillModules(game) || pairedNexusLeaderSkillsProfile(game) ||
    singleE1E2NexusLeaderSkillsProfile(game) || mixedE1E2NexusLeaderSkillsProfile(game)) return true;
  if (game.discoveryEnabled || game.discoveries) return discoveryLeaderSkillModulesSupported(game);
  const players = game.players;
  if ((!game.techTokens && !game.strongholdCards) || !players ||
    players.length < (game.techTokens ? 3 : 2) || players.length > 6 ||
    (game.strongholdCards && game.advanced !== true) ||
    game.expansions.length < 1 || game.expansions.length > 2 ||
    game.homeworlds || game.nexusCards || game.discoveries || game.discoveryEnabled ||
    game.ecazTreachery || game.semutaPreview ||
    game.moritaniAssassinatePreview || game.advancedPreview || game.kullPreview ||
    game.nexusKullPreview || game.guildBetrayalPreview || game.richeseBetrayalPreview ||
    game.nexusIxianReplacementPreview || game.nexusIxianBetrayalPreview ||
    game.nexusHarkonnenBetrayalPreview) return false;
  for (const expansion of game.expansions)
    if (expansion !== 'ix' && expansion !== 'choam') return false;
  for (let i = 0; i < players.length; i++)
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
  return true;
}

/** Standalone E3 native predicates retain their own roster, Duke and assassination limits. */
function e3LeaderSkillModulesSupported(game: LeaderSkillProfile): boolean {
  if (game.homeworlds) return homeworldLeaderSkillModulesSupported(game);
  if (noOtherLeaderSkillModules(game) || standaloneE3NexusLeaderSkillsProfile(game) ||
    pairedE3NexusLeaderSkillsProfile(game)) return true;
  if (game.discoveryEnabled || game.discoveries) return discoveryLeaderSkillModulesSupported(game);
  const players = game.players;
  if ((!game.techTokens && !game.strongholdCards) || !players ||
    players.length < (game.techTokens ? 3 : 2) || players.length > 6 ||
    (game.strongholdCards && game.advanced !== true) ||
    game.homeworlds || game.nexusCards || game.discoveries || game.discoveryEnabled ||
    game.ecazTreachery || game.semutaPreview || game.advancedPreview ||
    game.kullPreview || game.nexusKullPreview || game.guildBetrayalPreview ||
    game.richeseBetrayalPreview || game.nexusIxianReplacementPreview ||
    game.nexusIxianBetrayalPreview || game.nexusHarkonnenBetrayalPreview) return false;
  for (let i = 0; i < players.length; i++)
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
  return true;
}

/** Classic three-to-six-seat Skills/Tech composition; native and other modules stay separate. */
export function classicTechLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  const players = game.players;
  if (!game.techTokens || typeof game.advanced !== 'boolean' || game.expansions.length ||
    !players || players.length < 3 || players.length > 6 ||
    game.homeworlds || game.nexusCards || game.discoveries || game.discoveryEnabled ||
    game.strongholdCards || game.ecazTreachery || game.semutaPreview ||
    game.moritaniAssassinatePreview || game.advancedPreview || game.kullPreview ||
    game.nexusKullPreview || game.guildBetrayalPreview || game.richeseBetrayalPreview ||
    game.nexusIxianReplacementPreview || game.nexusIxianBetrayalPreview ||
    game.nexusHarkonnenBetrayalPreview) return false;
  for (let i = 0; i < players.length; i++) {
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
    let classic = false;
    for (const faction of FACTIONS)
      if (faction.id === players[i].faction && faction.expansion === 'base') { classic = true; break; }
    if (!classic) return false;
  }
  return true;
}

/** Original Advanced Strongholds, with optional Tech, for classic or supported native skills. */
export function strongholdLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  if (!game.strongholdCards || game.advanced !== true) return false;
  if (game.expansions.length) return advancedNativeLeaderSkillsProfile(game) ||
    advancedMoritaniLeaderSkillsProfile(game) || nativeEcazLeaderSkillsProfile(game);
  const players = game.players;
  if (!players || players.length < (game.techTokens ? 3 : 2) || players.length > 6 ||
    game.homeworlds || game.nexusCards || game.discoveries || game.discoveryEnabled ||
    game.ecazTreachery || game.semutaPreview || game.moritaniAssassinatePreview ||
    game.advancedPreview || game.kullPreview || game.nexusKullPreview ||
    game.guildBetrayalPreview || game.richeseBetrayalPreview ||
    game.nexusIxianReplacementPreview || game.nexusIxianBetrayalPreview ||
    game.nexusHarkonnenBetrayalPreview) return false;
  for (let i = 0; i < players.length; i++) {
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
    let classic = false;
    for (const faction of FACTIONS)
      if (faction.id === players[i].faction && faction.expansion === 'base') { classic = true; break; }
    if (!classic) return false;
  }
  return true;
}

/** Bounded integration of the ordinary Moritani roster, not Advanced assassination. */
export function basicMoritaniLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  return game.advanced === false && game.expansions.length === 1 &&
    game.expansions[0] === 'ecaz' && e3LeaderSkillModulesSupported(game) &&
    !!game.players?.some(player => player.faction === 'moritani') &&
    game.players.every(player => player.faction === 'moritani' ||
      FACTIONS.some(faction => faction.id === player.faction && faction.expansion === 'base'));
}

/** Existing bounded Advanced assassination roster, composed with native skills. */
export function advancedMoritaniLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  const players = game.players;
  if (game.advanced !== true || game.expansions.length !== 1 ||
    game.expansions[0] !== 'ecaz' || !players || players.length < 2 || players.length > 6 ||
    !e3LeaderSkillModulesSupported(game) || game.semutaPreview || game.advancedPreview ||
    game.kullPreview || game.nexusKullPreview || game.guildBetrayalPreview ||
    game.richeseBetrayalPreview || game.nexusIxianReplacementPreview ||
    game.nexusIxianBetrayalPreview || game.nexusHarkonnenBetrayalPreview) return false;
  let native = false;
  for (let i = 0; i < players.length; i++) {
    const player = players[i];
    for (let j = 0; j < i; j++) if (players[j].faction === player.faction) return false;
    if (player.faction === 'moritani') native = true;
    else {
      if (player.faction === 'harkonnen') return false;
      let classic = false;
      for (const faction of FACTIONS)
        if (faction.id === player.faction && faction.expansion === 'base') { classic = true; break; }
      if (!classic) return false;
    }
  }
  return native;
}

/** Ecaz's five native discs; the separate temporarily controlled Duke is not an assignment disc. */
export function nativeEcazLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  const players = game.players;
  if (typeof game.advanced !== 'boolean' || game.expansions.length !== 1 ||
    game.expansions[0] !== 'ecaz' || !players || players.length < 2 || players.length > 6 ||
    !e3LeaderSkillModulesSupported(game) || game.semutaPreview || game.moritaniAssassinatePreview ||
    game.advancedPreview || game.kullPreview || game.nexusKullPreview ||
    game.guildBetrayalPreview || game.richeseBetrayalPreview ||
    game.nexusIxianReplacementPreview || game.nexusIxianBetrayalPreview ||
    game.nexusHarkonnenBetrayalPreview) return false;
  let native = false;
  for (let i = 0; i < players.length; i++) {
    const player = players[i];
    for (let j = 0; j < i; j++) if (players[j].faction === player.faction) return false;
    if (player.faction === 'ecaz') native = true;
    else {
      if (game.advanced && player.faction === 'harkonnen') return false;
      let classic = false;
      for (const faction of FACTIONS)
        if (faction.id === player.faction && faction.expansion === 'base') { classic = true; break; }
      if (!classic) return false;
    }
  }
  return native;
}

/** Native Basic Tleilaxu, including Face Dancers; foreign gholas are Advanced. */
export function basicTleilaxuLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  return game.advanced === false && game.expansions.length === 1 &&
    game.expansions[0] === 'ix' && nativeLeaderSkillModulesSupported(game) &&
    !!game.players?.some(player => player.faction === 'tleilaxu') &&
    game.players.every(player => player.faction === 'tleilaxu' ||
      FACTIONS.some(faction => faction.id === player.faction && faction.expansion === 'base'));
}

/** Basic Ixians, optionally with native Tleilaxu, keep the ordinary Ix inventories. */
export function basicIxLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  return game.advanced === false && game.expansions.length === 1 &&
    game.expansions[0] === 'ix' && nativeLeaderSkillModulesSupported(game) &&
    !!game.players?.some(player => player.faction === 'ixians') &&
    game.players.every(player => ['ixians', 'tleilaxu'].includes(player.faction) ||
      FACTIONS.some(faction => faction.id === player.faction && faction.expansion === 'base'));
}

/** Basic CHOAM's ordinary leaders and economy; Auditor belongs to Advanced. */
export function basicChoamLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  return game.advanced === false && game.expansions.length === 1 &&
    game.expansions[0] === 'choam' && nativeLeaderSkillModulesSupported(game) &&
    !!game.players?.some(player => player.faction === 'choam') &&
    game.players.every(player => player.faction === 'choam' ||
      FACTIONS.some(faction => faction.id === player.faction && faction.expansion === 'base'));
}

/** Native Basic Richese/CHOAM setup, without unrelated optional overlays. */
export function basicRicheseLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  const players = game.players;
  if (game.advanced !== false || game.expansions.length !== 1 ||
    game.expansions[0] !== 'choam' || !players || players.length < 2 || players.length > 6 ||
    !nativeLeaderSkillModulesSupported(game) || game.semutaPreview || game.moritaniAssassinatePreview ||
    game.advancedPreview || game.kullPreview || game.nexusKullPreview ||
    game.guildBetrayalPreview || game.richeseBetrayalPreview ||
    game.nexusIxianReplacementPreview || game.nexusIxianBetrayalPreview ||
    game.nexusHarkonnenBetrayalPreview) return false;
  let native = false;
  for (let i = 0; i < players.length; i++) {
    const player = players[i];
    for (let j = 0; j < i; j++) if (players[j].faction === player.faction) return false;
    if (player.faction === 'richese') native = true;
    else if (player.faction !== 'choam') {
      let classic = false;
      for (const faction of FACTIONS)
        if (faction.id === player.faction && faction.expansion === 'base') { classic = true; break; }
      if (!classic) return false;
    }
  }
  return native;
}

export function basicExpansionLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  return basicMoritaniLeaderSkillsProfile(game) || basicTleilaxuLeaderSkillsProfile(game) ||
    basicIxLeaderSkillsProfile(game) || basicChoamLeaderSkillsProfile(game) || basicRicheseLeaderSkillsProfile(game);
}

/** Source-clear Advanced native factions; optional decks never imply a seated faction. */
export function advancedNativeLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  const players = game.players;
  if (game.advanced !== true || !players || players.length < 2 || players.length > 6 ||
    game.expansions.length < 1 || game.expansions.length > 2 ||
    (game.expansions.length === 2 && game.expansions[0] === game.expansions[1]) ||
    !nativeLeaderSkillModulesSupported(game) ||
    game.semutaPreview || game.moritaniAssassinatePreview || game.advancedPreview ||
    game.kullPreview || game.nexusKullPreview ||
    game.guildBetrayalPreview || game.richeseBetrayalPreview ||
    game.nexusIxianReplacementPreview || game.nexusIxianBetrayalPreview ||
    game.nexusHarkonnenBetrayalPreview) return false;
  for (const expansion of game.expansions)
    if (expansion !== 'ix' && expansion !== 'choam') return false;
  let native = false;
  for (let i = 0; i < players.length; i++) {
    const player = players[i];
    // Six seats at most: check prior seats without allocating per-rule quote sets.
    for (let j = 0; j < i; j++) if (players[j].faction === player.faction) return false;
    if (player.faction === 'ixians' || player.faction === 'tleilaxu' ||
      player.faction === 'choam' || player.faction === 'richese') {
      if (!game.expansions.includes(player.faction === 'choam' || player.faction === 'richese' ? 'choam' : 'ix')) return false;
      native = true;
    } else {
      let classic = false;
      for (const faction of FACTIONS)
        if (faction.id === player.faction && faction.expansion === 'base') { classic = true; break; }
      if (!classic) return false;
    }
  }
  return native;
}

export function nativeExpansionLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  return mixedE3NexusLeaderSkillsProfile(game) || mixedE1E2NexusLeaderSkillsProfile(game) || pairedE3NexusLeaderSkillsProfile(game) ||
    basicExpansionLeaderSkillsProfile(game) || advancedNativeLeaderSkillsProfile(game) ||
    advancedMoritaniLeaderSkillsProfile(game) || nativeEcazLeaderSkillsProfile(game);
}

/** Fresh/live original native all14/Discovery; existing family limits stay authoritative. */
export function nativeDiscoveryLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  return game.discoveryEnabled === true && nativeExpansionLeaderSkillsProfile(game);
}

/** Only the original eligible native skill families gain the Tech combination. */
export function nativeTechLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  return !!game.techTokens && nativeExpansionLeaderSkillsProfile(game);
}

/** Original Homeworld module envelope; native roster/deck predicates stay authoritative. */
function homeworldLeaderSkillModulesSupported(game: LeaderSkillProfile): boolean {
  const players = game.players;
  if (!game.homeworlds || typeof game.advanced !== 'boolean' ||
    !players || players.length < 2 || players.length > 6 ||
    (game.nexusCards && !classicNexusLeaderSkillsProfile(game) &&
      !pairedNexusLeaderSkillsProfile(game) && !singleE1E2NexusLeaderSkillsProfile(game) &&
      !mixedE1E2NexusLeaderSkillsProfile(game) && !pairedE3NexusLeaderSkillsProfile(game) &&
      !standaloneE3NexusLeaderSkillsProfile(game)) ||
    (game.discoveryEnabled !== true && (game.discoveryEnabled || game.discoveries || game.discoveryStash || game.greatMaker)) ||
    (game.techTokens && players.length < 3) || (game.strongholdCards && !game.advanced) ||
    game.ecazTreachery ||
    game.semutaPreview || game.advancedPreview ||
    (game.moritaniAssassinatePreview && (!game.advanced || game.expansions.length !== 1 ||
      game.expansions[0] !== 'ecaz' || !players.some(player => player.faction === 'moritani'))) ||
    game.kullPreview || game.nexusKullPreview || game.guildBetrayalPreview ||
    game.richeseBetrayalPreview || game.nexusIxianReplacementPreview ||
    game.nexusIxianBetrayalPreview || game.nexusHarkonnenBetrayalPreview ||
    game.mentatQuestionPreview || game.spiceBankerIncomePreview) return false;
  return true;
}

/** Original Homeworld/Skills under the existing classic or native Nexus roster contracts. */
export function homeworldLeaderSkillsProfile(game: LeaderSkillProfile): boolean {
  if (!game.homeworlds) return false;
  if (game.expansions.length) return nativeExpansionLeaderSkillsProfile(game);
  if (!homeworldLeaderSkillModulesSupported(game)) return false;
  const players = game.players!;
  for (let i = 0; i < players.length; i++) {
    for (let j = 0; j < i; j++) if (players[j].faction === players[i].faction) return false;
    let classic = false;
    for (const faction of FACTIONS)
      if (faction.id === players[i].faction) { classic = faction.expansion === 'base'; break; }
    if (!classic) return false;
  }
  return true;
}

/** Shared by rule quotes, controls and minimal legal bot participation. */
export function ordinaryLeaderSkillModeSupported(game: LeaderSkillProfile): boolean {
  return (noOtherLeaderSkillModules(game) &&
    (!game.expansions.length || nativeExpansionLeaderSkillsProfile(game))) ||
    classicTechLeaderSkillsProfile(game) || nativeTechLeaderSkillsProfile(game) ||
    strongholdLeaderSkillsProfile(game) || classicNexusLeaderSkillsProfile(game) ||
    singleE1E2NexusLeaderSkillsProfile(game) ||
    mixedE3NexusLeaderSkillsProfile(game) || mixedE1E2NexusLeaderSkillsProfile(game) || pairedE3NexusLeaderSkillsProfile(game) ||
    pairedNexusLeaderSkillsProfile(game) || standaloneE3NexusLeaderSkillsProfile(game) ||
    classicDiscoveryLeaderSkillsProfile(game) || nativeDiscoveryLeaderSkillsProfile(game) ||
    homeworldLeaderSkillsProfile(game);
}