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frontend/src/stores/satstore.js

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+import { writable } from 'svelte/store'
+
+// All satellite positions (updated every second from backend)
+export const satPositions = writable([])
+
+// List of available satellite names
+export const satList = writable([])
+
+// Currently selected/tracked satellite name
+export const trackedSat = writable('')
+
+// Upcoming passes for tracked satellite
+export const passes = writable([])
+
+// Current position of tracked satellite - derived + refreshed every tick
+export const trackedPosition = writable(null)
+
+// Update trackedPosition whenever positions update
+let _lastPositions = []
+let _lastTracked = ''
+
+satPositions.subscribe(positions => {
+  _lastPositions = positions
+  if (!_lastTracked) { trackedPosition.set(null); return }
+  const pos = positions.find(p => p.name === _lastTracked) || null
+  trackedPosition.set(pos)
+})
+
+trackedSat.subscribe(name => {
+  _lastTracked = name
+  if (!name) { trackedPosition.set(null); return }
+  const pos = _lastPositions.find(p => p.name === name) || null
+  trackedPosition.set(pos)
+})
+
+// Connection states
+export const flexConnected = writable(false)
+export const dopplerEnabled = writable(true)
+
+// Passes panel state — persisted in memory so tab switches don't reset filters
+export const passesViewMode = writable('single')  // 'single' | 'all'
+export const passesMinEl = writable(0)            // 0 | 10 | 30 | 60
+export const passesAllCache = writable([])        // cached all-watchlist passes
+export const rotorEnabled = writable(true)
+export const soundEnabled = writable(true)  // AOS voice alerts
+
+// Per-session tracking toggles (not persisted — reset on startup)
+export const trackFreqMode = writable(false)  // Track frequency+mode for current sat
+export const trackAzimuth = writable(false)   // Track azimuth for current sat
+
+export const rotorConnected = writable(false)
+
+// Default settings
+const DEFAULT_SETTINGS = {
+  qthLat: 48.7,
+  qthLon: 2.55,
+  qthAlt: 100,
+  flexHost: '192.168.1.100',
+  flexPort: 4992,
+  rotorHost: '127.0.0.1',
+  rotorPort: 12000,
+  rotorAzOnly: true,  // true = azimuth only, false = az+el
+  downlinkHz: 145800000,
+  uplinkHz: 145200000,
+  minElFilter: 5,
+  autoConnectFlex: false,
+  autoConnectRotor: false,
+  rxSlice: 0,  // Slice A = RX downlink
+  txSlice: 1,  // Slice B = TX uplink
+}
+
+// Settings version — bump this to force reset of specific fields
+const SETTINGS_VERSION = 3
+
+// Load persisted settings from localStorage
+function loadSettings() {
+  try {
+    const saved = localStorage.getItem('satmaster_settings')
+    if (saved) {
+      const parsed = JSON.parse(saved)
+      // If version mismatch, force slice config reset to new defaults
+      if (parsed._version !== SETTINGS_VERSION) {
+        return {
+          ...DEFAULT_SETTINGS,
+          ...parsed,
+          rxSlice: DEFAULT_SETTINGS.rxSlice,
+          txSlice: DEFAULT_SETTINGS.txSlice,
+          _version: SETTINGS_VERSION,
+        }
+      }
+      return { ...DEFAULT_SETTINGS, ...parsed }
+    }
+  } catch(e) {}
+  return { ...DEFAULT_SETTINGS, _version: SETTINGS_VERSION }
+}
+
+// Persist settings to localStorage on every change
+function createPersistedSettings() {
+  const store = writable(loadSettings())
+  store.subscribe(val => {
+    try {
+      localStorage.setItem('satmaster_settings', JSON.stringify(val))
+    } catch(e) {}
+  })
+  return store
+}
+
+export const settings = createPersistedSettings()
+
+// Watchlist - satellites to display on map (persisted)
+function createPersistedWatchlist() {
+  const DEFAULT = ['ISS (ZARYA)','AO-7','AO-27','SO-50','RS-44','AO-91','FO-29']
+  let initial = DEFAULT
+  try {
+    const saved = localStorage.getItem('satmaster_watchlist')
+    if (saved) initial = JSON.parse(saved)
+  } catch(e) {}
+  const store = writable(initial)
+  store.subscribe(val => {
+    try { localStorage.setItem('satmaster_watchlist', JSON.stringify(val)) } catch(e) {}
+  })
+  return store
+}
+export const watchlist = createPersistedWatchlist()
+
+// TLE info
+export const tleAge = writable(null)
+export const tleLoaded = writable(false)
+
+// Doppler display values
+export const dopplerInfo = writable({
+  downShiftHz: 0,
+  upShiftHz: 0,
+  correctedDownHz: 0,
+  correctedUpHz: 0,
+})