package com.bitcointxoko.gudariwallet.util

object WalletConstants {

    // ── Unit conversion ───────────────────────────────────────────────────────
    const val MSAT_PER_SAT = 1_000L        // millisatoshis per satoshi

    // ── WebSocket reconnect ───────────────────────────────────────────────────
    const val WS_INITIAL_BACKOFF_MS = 1_000L    // first retry delay
    const val WS_MAX_BACKOFF_MS     = 16_000L   // cap — never wait longer than this
    const val WS_MAX_ATTEMPTS       = 5         // give up after 5 failed reconnects

    // ── SharedPreferences ─────────────────────────────────────────────────────
    const val PREFS_NAME            = "lnbits_prefs"
    const val PREFS_BASE_URL        = "base_url"
    const val PREFS_INVOICE_KEY_ENC = "invoice_key_enc"
    const val PREFS_ADMIN_KEY_ENC   = "admin_key_enc"
    const val PREFS_ONBOARDED       = "onboarded"

    // ── Network ───────────────────────────────────────────────────────────────
    const val CONNECT_TIMEOUT_S = 15L
    const val READ_TIMEOUT_S    = 30L
    const val WRITE_TIMEOUT_S   = 15L

    // ── WebSocket close ───────────────────────────────────────────────────────
    const val WS_CLOSE_NORMAL = 1000

    // ── History pagination ────────────────────────────────────────────────────
    const val PAYMENTS_PAGE_SIZE = 20
    // ── Alias cache ───────────────────────────────────────────────────────────
    const val ALIAS_CACHE_TTL_MS    = 3_600_000L    // 1 hour  — in-memory stale threshold
    const val ALIAS_PERSIST_TTL_MS  = 21 * 24 * 60 * 60 * 1000L   // 21 days — drop on load if older than this
    // ── LNURL metadata cache ──────────────────────────────────────────────────
    const val LNURL_CACHE_TTL_MS        = 7 * 24 * 60 * 60 * 1000L   // 7 days
    // ── Payments cache ────────────────────────────────────────────────────────
    const val PAYMENTS_CACHE_TTL_MS     = 300_000L      // 5 minutes — show stale, refresh in background
    // ── Payments sync ─────────────────────────────────────────────────────────────
    const val PAYMENTS_SYNC_CHECKPOINT  = 100   // max payments fetched on auto-sync at startup

    // ── Balance cache ─────────────────────────────────────────────────────────
    const val BALANCE_PREFS_NAME        = "balance_cache_prefs"
    const val BALANCE_PREFS_KEY         = "last_balance_sats"
    const val BALANCE_PREFS_SAVED_AT    = "last_balance_saved_at"
    const val BALANCE_CACHE_TTL_MS      = 3_600_000L              // 1 hour
}