/**
 * QVAC model profiles for PearData onboarding.
 * Constants match @qvac/sdk registry names (string form when SDK not loaded).
 */

/** @typedef {'lite'|'recommended'|'strong'|'tool-tiny'} QvacProfileId */

/**
 * @typedef {{
 *   id: QvacProfileId,
 *   label: string,
 *   description: string,
 *   chatModel: string,
 *   embedModel: string|null,
 *   tools: boolean,
 *   minRamGb: number,
 *   minDiskGb: number,
 *   approxDownloadGb: number,
 *   ctxSize: number,
 * }} QvacProfile
 */

/** @type {Record<QvacProfileId, QvacProfile>} */
export const QVAC_PROFILES = {
  lite: {
    id: 'lite',
    label: 'Lite',
    description: 'Smallest download. Good for weak machines; limited tool use.',
    chatModel: 'QWEN3_600M_INST_Q4',
    embedModel: null,
    tools: false,
    minRamGb: 4,
    minDiskGb: 2,
    approxDownloadGb: 0.5,
    ctxSize: 4096,
  },
  recommended: {
    id: 'recommended',
    label: 'Recommended',
    description: 'Best balance for host monitoring with tool calling.',
    chatModel: 'QWEN3_1_7B_INST_Q4',
    embedModel: 'GTE_LARGE_FP16',
    tools: true,
    minRamGb: 8,
    minDiskGb: 5,
    approxDownloadGb: 2.5,
    ctxSize: 8192,
  },
  strong: {
    id: 'strong',
    label: 'Strong',
    description: 'Better reasoning on incidents. Needs more RAM/disk.',
    chatModel: 'QWEN3_4B_INST_Q4_K_M',
    embedModel: 'GTE_LARGE_FP16',
    tools: true,
    minRamGb: 16,
    minDiskGb: 8,
    approxDownloadGb: 3.5,
    ctxSize: 8192,
  },
  'tool-tiny': {
    id: 'tool-tiny',
    label: 'Tool-tiny',
    description: 'Llama tool-calling 1B fallback if Qwen tools misbehave.',
    chatModel: 'LLAMA_TOOL_CALLING_1B_INST_Q4_K',
    embedModel: null,
    tools: true,
    minRamGb: 6,
    minDiskGb: 3,
    approxDownloadGb: 1,
    ctxSize: 4096,
  },
}

/**
 * @param {{ totalRamBytes?: number, freeDiskBytes?: number }} hw
 * @returns {QvacProfileId}
 */
export function suggestProfile(hw = {}) {
  const ramGb = (Number(hw.totalRamBytes) || 0) / 1e9
  if (ramGb >= 16) return 'strong'
  if (ramGb >= 8) return 'recommended'
  if (ramGb >= 4) return 'lite'
  return 'lite'
}

/**
 * @param {QvacProfileId|string} id
 * @returns {QvacProfile}
 */
export function getProfile(id) {
  return QVAC_PROFILES[id] || QVAC_PROFILES.recommended
}

export const PROFILE_LIST = Object.values(QVAC_PROFILES)