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| 1 | +import { mkdir, readFile, writeFile } from 'node:fs/promises' |
| 2 | +import { join } from 'node:path' |
| 3 | +import { TIMEOUTS } from '@browseros/shared/constants/timeouts' |
| 4 | +import { EXTERNAL_URLS } from '@browseros/shared/constants/urls' |
| 5 | +import { INLINED_ENV } from '../env' |
| 6 | +import { getSkillsDir } from '../lib/browseros-dir' |
| 7 | +import { logger } from '../lib/logger' |
| 8 | +import { safeSkillDir } from './service' |
| 9 | +import type { RemoteSkillCatalog, RemoteSkillEntry } from './types' |
| 10 | + |
| 11 | +let syncTimer: ReturnType<typeof setInterval> | null = null |
| 12 | + |
| 13 | +export function extractVersion(content: string): string { |
| 14 | + const match = content.match(/^\s*version:\s*["']?([^"'\n]+)["']?/m) |
| 15 | + return match?.[1]?.trim() || '1.0' |
| 16 | +} |
| 17 | + |
| 18 | +function isValidSkillEntry(entry: unknown): entry is RemoteSkillEntry { |
| 19 | + if (typeof entry !== 'object' || entry === null) return false |
| 20 | + const e = entry as Record<string, unknown> |
| 21 | + return ( |
| 22 | + typeof e.id === 'string' && |
| 23 | + typeof e.version === 'string' && |
| 24 | + typeof e.content === 'string' |
| 25 | + ) |
| 26 | +} |
| 27 | + |
| 28 | +function isValidCatalog(data: unknown): data is RemoteSkillCatalog { |
| 29 | + if (typeof data !== 'object' || data === null) return false |
| 30 | + const d = data as Record<string, unknown> |
| 31 | + return ( |
| 32 | + typeof d.version === 'number' && |
| 33 | + Array.isArray(d.skills) && |
| 34 | + d.skills.every(isValidSkillEntry) |
| 35 | + ) |
| 36 | +} |
| 37 | + |
| 38 | +function getCatalogUrl(): string { |
| 39 | + return INLINED_ENV.SKILLS_CATALOG_URL || EXTERNAL_URLS.SKILLS_CATALOG |
| 40 | +} |
| 41 | + |
| 42 | +export async function fetchRemoteCatalog(): Promise<RemoteSkillCatalog | null> { |
| 43 | + try { |
| 44 | + const response = await fetch(getCatalogUrl(), { |
| 45 | + signal: AbortSignal.timeout(TIMEOUTS.SKILLS_FETCH), |
| 46 | + }) |
| 47 | + if (!response.ok) { |
| 48 | + logger.warn('Failed to fetch remote skill catalog', { |
| 49 | + status: response.status, |
| 50 | + }) |
| 51 | + return null |
| 52 | + } |
| 53 | + const data: unknown = await response.json() |
| 54 | + if (!isValidCatalog(data)) { |
| 55 | + logger.warn('Remote skill catalog has invalid format') |
| 56 | + return null |
| 57 | + } |
| 58 | + return data |
| 59 | + } catch (err) { |
| 60 | + logger.debug('Remote skill catalog unavailable', { |
| 61 | + error: err instanceof Error ? err.message : String(err), |
| 62 | + }) |
| 63 | + return null |
| 64 | + } |
| 65 | +} |
| 66 | + |
| 67 | +async function getLocalVersion(skillId: string): Promise<string | null> { |
| 68 | + try { |
| 69 | + const safeDir = safeSkillDir(skillId) |
| 70 | + const content = await readFile(join(safeDir, 'SKILL.md'), 'utf-8') |
| 71 | + return extractVersion(content) |
| 72 | + } catch { |
| 73 | + return null |
| 74 | + } |
| 75 | +} |
| 76 | + |
| 77 | +export async function writeSkillFile( |
| 78 | + skillId: string, |
| 79 | + content: string, |
| 80 | +): Promise<void> { |
| 81 | + const safeDir = safeSkillDir(skillId) |
| 82 | + await mkdir(safeDir, { recursive: true }) |
| 83 | + await writeFile(join(safeDir, 'SKILL.md'), content) |
| 84 | +} |
| 85 | + |
| 86 | +export async function syncRemoteSkills(): Promise<{ |
| 87 | + installed: number |
| 88 | + updated: number |
| 89 | +}> { |
| 90 | + const result = { installed: 0, updated: 0 } |
| 91 | + const catalog = await fetchRemoteCatalog() |
| 92 | + if (!catalog) return result |
| 93 | + |
| 94 | + for (const remoteSkill of catalog.skills) { |
| 95 | + try { |
| 96 | + const localVersion = await getLocalVersion(remoteSkill.id) |
| 97 | + |
| 98 | + if (!localVersion) { |
| 99 | + await writeSkillFile(remoteSkill.id, remoteSkill.content) |
| 100 | + result.installed++ |
| 101 | + continue |
| 102 | + } |
| 103 | + |
| 104 | + if (localVersion === remoteSkill.version) { |
| 105 | + continue |
| 106 | + } |
| 107 | + |
| 108 | + await writeSkillFile(remoteSkill.id, remoteSkill.content) |
| 109 | + result.updated++ |
| 110 | + } catch (err) { |
| 111 | + logger.warn('Failed to sync skill', { |
| 112 | + id: remoteSkill.id, |
| 113 | + error: err instanceof Error ? err.message : String(err), |
| 114 | + }) |
| 115 | + } |
| 116 | + } |
| 117 | + |
| 118 | + return result |
| 119 | +} |
| 120 | + |
| 121 | +export async function seedFromRemote(): Promise<boolean> { |
| 122 | + const catalog = await fetchRemoteCatalog() |
| 123 | + if (!catalog || catalog.skills.length === 0) return false |
| 124 | + |
| 125 | + let seeded = 0 |
| 126 | + |
| 127 | + for (const skill of catalog.skills) { |
| 128 | + try { |
| 129 | + await writeSkillFile(skill.id, skill.content) |
| 130 | + seeded++ |
| 131 | + } catch (err) { |
| 132 | + logger.warn('Failed to seed remote skill', { |
| 133 | + id: skill.id, |
| 134 | + error: err instanceof Error ? err.message : String(err), |
| 135 | + }) |
| 136 | + } |
| 137 | + } |
| 138 | + |
| 139 | + if (seeded > 0) { |
| 140 | + logger.info(`Seeded ${seeded}/${catalog.skills.length} skills from remote catalog`) |
| 141 | + } |
| 142 | + |
| 143 | + return seeded === catalog.skills.length |
| 144 | +} |
| 145 | + |
| 146 | +async function runSync(): Promise<void> { |
| 147 | + try { |
| 148 | + const { installed, updated } = await syncRemoteSkills() |
| 149 | + if (installed > 0 || updated > 0) { |
| 150 | + logger.info('Remote skill sync completed', { installed, updated }) |
| 151 | + } |
| 152 | + } catch (err) { |
| 153 | + logger.warn('Skill sync failed', { |
| 154 | + error: err instanceof Error ? err.message : String(err), |
| 155 | + }) |
| 156 | + } |
| 157 | +} |
| 158 | + |
| 159 | +export function startSkillSync(): void { |
| 160 | + if (syncTimer) return |
| 161 | + |
| 162 | + runSync() |
| 163 | + |
| 164 | + syncTimer = setInterval(runSync, TIMEOUTS.SKILLS_SYNC_INTERVAL) |
| 165 | + syncTimer.unref() |
| 166 | +} |
| 167 | + |
| 168 | +export function stopSkillSync(): void { |
| 169 | + if (syncTimer) { |
| 170 | + clearInterval(syncTimer) |
| 171 | + syncTimer = null |
| 172 | + } |
| 173 | +} |
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