/**
 * Shared QVAC chat catalog + REST /models helpers (preamble for agent and discord-bot).
 */

/** @type {{ id: string, family: string, label: string, tools: boolean, ramGb: number, profile?: string }[]} */
var BARE_AGENT_QVAC_CHAT_MODELS = [
  { id: 'QWEN3_600M_INST_Q4', family: 'qwen3', label: 'Qwen3 0.6B Instruct Q4', tools: true, ramGb: 4, profile: 'lite' },
  { id: 'QWEN3_1_7B_INST_Q4', family: 'qwen3', label: 'Qwen3 1.7B Instruct Q4', tools: true, ramGb: 8, profile: 'recommended' },
  { id: 'QWEN3_4B_INST_Q4_K_M', family: 'qwen3', label: 'Qwen3 4B Instruct Q4_K_M', tools: true, ramGb: 16, profile: 'strong' },
  { id: 'QWEN3_4B_Q4_K_M', family: 'qwen3', label: 'Qwen3 4B Q4_K_M', tools: true, ramGb: 16 },
  { id: 'QWEN3_8B_INST_Q4_K_M', family: 'qwen3', label: 'Qwen3 8B Instruct Q4_K_M', tools: true, ramGb: 24 },
  { id: 'LLAMA_TOOL_CALLING_1B_INST_Q4_K', family: 'llama', label: 'Llama 3.2 1B tool-calling', tools: true, ramGb: 6, profile: 'tool-tiny' },
  { id: 'LLAMA_3_2_1B_INST_Q4_0', family: 'llama', label: 'Llama 3.2 1B Instruct Q4_0', tools: true, ramGb: 6 },
  { id: 'SMOLLM2_360M_INST_Q8', family: 'smol', label: 'SmolLM2 360M Instruct Q8', tools: false, ramGb: 3 },
  { id: 'GPT_OSS_20B_INST_Q4_K_M', family: 'gpt-oss', label: 'GPT-OSS 20B Instruct Q4_K_M', tools: true, ramGb: 24 },
  { id: 'GEMMA4_2B_MULTIMODAL_Q4_K_M', family: 'gemma', label: 'Gemma 4 2B multimodal Q4', tools: true, ramGb: 8 },
  { id: 'GEMMA4_2B_MULTIMODAL_Q6_K', family: 'gemma', label: 'Gemma 4 2B multimodal Q6', tools: true, ramGb: 10 },
  { id: 'GEMMA4_4B_MULTIMODAL_Q4_K_M', family: 'gemma', label: 'Gemma 4 4B multimodal Q4', tools: true, ramGb: 16 },
  { id: 'GEMMA4_31B_MULTIMODAL_Q4_K_M', family: 'gemma', label: 'Gemma 4 31B multimodal Q4', tools: true, ramGb: 48 },
  { id: 'QWEN3VL_2B_MULTIMODAL_Q4_K', family: 'qwen3', label: 'Qwen3-VL 2B multimodal Q4', tools: true, ramGb: 10 },
  { id: 'QWEN3_5_2B_MULTIMODAL_Q4_K_M', family: 'qwen3.5', label: 'Qwen3.5 2B multimodal Q4', tools: true, ramGb: 10 },
  { id: 'QWEN3_5_4B_MULTIMODAL_Q4_K_M', family: 'qwen3.5', label: 'Qwen3.5 4B multimodal Q4', tools: true, ramGb: 16 },
  { id: 'QWEN3_5_0_8B_MULTIMODAL_Q4_K_M', family: 'qwen3.5', label: 'Qwen3.5 8B multimodal Q4', tools: true, ramGb: 24 },
  { id: 'QWEN3_5_9B_MULTIMODAL_Q4_K_M', family: 'qwen3.5', label: 'Qwen3.5 9B multimodal Q4', tools: true, ramGb: 28 },
  { id: 'QWEN3_6_27B_MULTIMODAL_Q4_K_XL', family: 'large', label: 'Qwen3.6 27B multimodal Q4', tools: true, ramGb: 48 }
]

/** @type {Record<string, string[]>} */
var BARE_AGENT_REST_MODEL_FALLBACKS = {
  groq: [
    'llama-3.3-70b-versatile',
    'llama-3.1-8b-instant',
    'openai/gpt-oss-120b',
    'openai/gpt-oss-20b',
    'qwen/qwen3-32b',
    'moonshotai/kimi-k2-instruct',
    'meta-llama/llama-4-scout-17b-16e-instruct',
    'meta-llama/llama-4-maverick-17b-128e-instruct',
    'groq/compound'
  ],
  xai: ['grok-4', 'grok-3', 'grok-3-mini', 'grok-3-fast', 'grok-2-1212', 'grok-2-vision-1212'],
  openai: ['gpt-4.1', 'gpt-4.1-mini', 'gpt-4.1-nano', 'gpt-4o', 'gpt-4o-mini', 'o4-mini', 'o3'],
  custom: []
}

/**
 * @param {string} [profileId]
 */
function bareAgentQvacModelForProfile(profileId) {
  const id = String(profileId || '').trim().toLowerCase()
  for (let i = 0; i < BARE_AGENT_QVAC_CHAT_MODELS.length; i++) {
    if (BARE_AGENT_QVAC_CHAT_MODELS[i].profile === id) return BARE_AGENT_QVAC_CHAT_MODELS[i]
  }
  return BARE_AGENT_QVAC_CHAT_MODELS[1] || BARE_AGENT_QVAC_CHAT_MODELS[0]
}

/**
 * @param {string} [modelId]
 */
function bareAgentQvacFindChatModel(modelId) {
  const id = String(modelId || '').trim()
  for (let i = 0; i < BARE_AGENT_QVAC_CHAT_MODELS.length; i++) {
    if (BARE_AGENT_QVAC_CHAT_MODELS[i].id === id) return BARE_AGENT_QVAC_CHAT_MODELS[i]
  }
  return null
}

/**
 * @param {{ id: string, label?: string, family?: string }[]} models
 * @param {{ family?: string, query?: string }} [opts]
 */
function bareAgentFilterModelList(models, opts) {
  const o = opts && typeof opts === 'object' ? opts : {}
  const fam = String(o.family || 'all').trim().toLowerCase()
  const q = String(o.query || '').trim().toLowerCase()
  const rows = Array.isArray(models) ? models : []
  /** @type {{ id: string, label?: string, family?: string }[]} */
  const out = []
  for (let i = 0; i < rows.length; i++) {
    const m = rows[i]
    if (!m || !m.id) continue
    if (fam && fam !== 'all' && String(m.family || '').toLowerCase() !== fam) continue
    if (q) {
      const blob = (String(m.id) + ' ' + String(m.label || '')).toLowerCase()
      if (blob.indexOf(q) === -1) continue
    }
    out.push(m)
  }
  return out
}

/**
 * @param {unknown} json
 * @returns {{ id: string, label: string, family: string, owned_by: string }[]}
 */
function bareAgentParseOpenAiModels(json) {
  const raw =
    json && typeof json === 'object' && Array.isArray(/** @type {{ data?: unknown }} */ (json).data)
      ? /** @type {{ data: unknown[] }} */ (json).data
      : Array.isArray(json)
        ? json
        : []
  const skip = /embed|whisper|tts|dall-e|davinci|babbage|audio|moderation|realtime|image|sora/i
  /** @type {{ id: string, label: string, family: string, owned_by: string }[]} */
  const out = []
  const seen = Object.create(null)
  for (let i = 0; i < raw.length; i++) {
    const row = raw[i] && typeof raw[i] === 'object' ? /** @type {Record<string, unknown>} */ (raw[i]) : null
    if (!row) continue
    const id = String(row.id || row.name || '').trim()
    if (!id || seen[id] || skip.test(id)) continue
    seen[id] = 1
    const owned = String(row.owned_by || row.ownedBy || '')
    out.push({
      id: id,
      label: id,
      family: owned || 'api',
      owned_by: owned
    })
  }
  out.sort(function (a, b) {
    return a.id.localeCompare(b.id)
  })
  return out
}

/**
 * @param {string} [provider]
 */
function bareAgentRestModelsFallback(provider) {
  const key = String(provider || 'groq').trim().toLowerCase()
  const ids = BARE_AGENT_REST_MODEL_FALLBACKS[key] || BARE_AGENT_REST_MODEL_FALLBACKS.groq
  return (ids || []).map(function (id) {
    return { id: id, label: id, family: key, owned_by: key }
  })
}

/**
 * @param {(url: string, init?: object) => Promise<{ ok?: boolean, status?: number, json?: () => Promise<unknown>, text?: () => Promise<string> }>} fetchFn
 * @param {{ baseUrl?: string, apiKey?: string }} opts
 */
async function bareAgentFetchRestModels(fetchFn, opts) {
  const o = opts && typeof opts === 'object' ? opts : {}
  const base = String(o.baseUrl || '').trim().replace(/\/+$/, '')
  if (!base) throw new Error('rest_base_url required')
  if (typeof fetchFn !== 'function') throw new Error('fetch unavailable')
  const url = base + '/models'
  /** @type {Record<string, string>} */
  const headers = { Accept: 'application/json' }
  const key = String(o.apiKey || '').trim()
  if (key) headers.Authorization = 'Bearer ' + key
  const res = await fetchFn(url, { method: 'GET', headers: headers })
  if (!res || res.ok === false) {
    const st = res && res.status != null ? String(res.status) : 'fetch_failed'
    throw new Error('models_http_' + st)
  }
  let json
  if (typeof res.json === 'function') json = await res.json()
  else if (typeof res.text === 'function') json = JSON.parse(await res.text())
  else throw new Error('models_unreadable')
  const list = bareAgentParseOpenAiModels(json)
  if (!list.length) throw new Error('models_empty')
  return list
}