Rotate the random fallback pick by play count, not pure chance

Adds playCount to each library clip, incremented every time it airs (markPlayed). The idle-filler pick in pickNextClip now randomizes only among the least-played clips in the eligible pool — everyone at 0 plays first, then everyone tied at 1, and so on — instead of picking uniformly at random across the whole library, which let some clips rack up far more airtime than others by chance alone. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0144MiJ2cLjMd9jWaeEpVfUJ

Rotate the random fallback pick by play count, not pure chance
Adds playCount to each library clip, incremented every time it airs (markPlayed). The idle-filler pick in pickNextClip now randomizes only among the least-played clips in the eligible pool — everyone at 0 plays first, then everyone tied at 1, and so on — instead of picking uniformly at random across the whole library, which let some clips rack up far more airtime than others by chance alone. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_0144MiJ2cLjMd9jWaeEpVfUJ
yibo
1 parent fcb9a940
Showing 2 changed files with 59 additions and 53 deletions
library.json
server.js
@@ -10,7 +10,8 @@
     "duration": 1,
     "partition": "fl2va",
     "likes": 0,
-    "createdAt": 1788251288958
+    "createdAt": 1788251288958,
+    "lastPlayedAt": 1788254550116
   },
   {
     "id": "8024972d6019",
@@ -379,7 +380,7 @@
     "likes": 0,
     "createdAt": 1788181569491,
     "promptEn": "a massive warship glides through the stars, the bridge suddenly shakes hard",
-    "lastPlayedAt": 1788253093423
+    "lastPlayedAt": 1788254390052
   },
   {
     "id": "44bf5b969e94",
@@ -424,7 +425,7 @@
     "likes": 0,
     "createdAt": 1788159367556,
     "promptEn": "constable talking nervously in an old room, looking scared",
-    "lastPlayedAt": 1788252509170
+    "lastPlayedAt": 1788254306023
   },
   {
     "id": "a6d767413426",
@@ -439,7 +440,7 @@
     "likes": 0,
     "createdAt": 1788157322611,
     "promptEn": "constable talking, looking scared",
-    "lastPlayedAt": 1788250916299
+    "lastPlayedAt": 1788254071916
   },
   {
     "id": "7977eeeabe8b",
@@ -469,7 +470,7 @@
     "likes": 0,
     "createdAt": 1788156878022,
     "promptEn": "constable bursts in and blocks the door, talks to a pale woman behind the screen",
-    "lastPlayedAt": 1788252225046
+    "lastPlayedAt": 1788254209972
   },
   {
     "id": "a0b752e7ac0d",
@@ -544,7 +545,7 @@
     "likes": 0,
     "createdAt": 1788120171608,
     "promptEn": "constable bursts in and blocks the door, talks to a pale woman behind the screen",
-    "lastPlayedAt": 1788252411133
+    "lastPlayedAt": 1788254175959
   },
   {
     "id": "b8c762a3672e",
@@ -574,7 +575,7 @@
     "likes": 0,
     "createdAt": 1788085282201,
     "promptEn": "constable stands still, quietly says he won't make a sound, woman stays silent behind the screen",
-    "lastPlayedAt": 1788251288482
+    "lastPlayedAt": 1788254023891
   },
   {
     "id": "683ab2fd4681",
@@ -589,7 +590,7 @@
     "likes": 0,
     "createdAt": 1788071067702,
     "promptEn": "constable stands still, quietly says he won't make a sound, woman stays silent behind the screen",
-    "lastPlayedAt": 1788251524674
+    "lastPlayedAt": 1788253999874
   },
   {
     "id": "2e09fcd3d42c",
@@ -649,7 +650,7 @@
     "likes": 0,
     "createdAt": 1788027833836,
     "promptEn": "wounded hunter at a ruined subway dungeon entrance, lightning flickers, pointing into the tunnel",
-    "lastPlayedAt": 1788250480118
+    "lastPlayedAt": 1788254268003
   },
   {
     "id": "cde399c27dc4",
@@ -754,7 +755,7 @@
     "likes": 0,
     "createdAt": 1788026568242,
     "promptEn": "magma commander in a white coat, raising a lava fist on the battlefield",
-    "lastPlayedAt": 1788252487163
+    "lastPlayedAt": 1788254205974
   },
   {
     "id": "1442013e94f0",
@@ -784,7 +785,7 @@
     "likes": 0,
     "createdAt": 1788025642732,
     "promptEn": "Vecna reaching out a claw in his lair in the Upside Down, red lightning",
-    "lastPlayedAt": 1788252559192
+    "lastPlayedAt": 1788254043902
   },
   {
     "id": "00862f966c3f",
@@ -904,7 +905,7 @@
     "likes": 0,
     "createdAt": 1788025220954,
     "promptEn": "pirate captain plants a cutlass on the table, making a dangerous bargain",
-    "lastPlayedAt": 1788251456618
+    "lastPlayedAt": 1788254095922
   },
   {
     "id": "3e03975ff40a",
@@ -919,7 +920,7 @@
     "likes": 0,
     "createdAt": 1788025003469,
     "promptEn": "vampire idol with red eyes, offering a blood-red contract backstage",
-    "lastPlayedAt": 1788243983188
+    "lastPlayedAt": 1788254386050
   },
   {
     "id": "2857aacf11bb",
@@ -1054,7 +1055,7 @@
     "likes": 0,
     "createdAt": 1788015737873,
     "promptEn": "pirate negotiation, went in head-on and Barbossa saw it coming",
-    "lastPlayedAt": 1788252825264
+    "lastPlayedAt": 1788254215976
   },
   {
     "id": "2a5ee87b8f13",
@@ -1174,7 +1175,7 @@
     "likes": 0,
     "createdAt": 1788013870849,
     "promptEn": "glass bridge game, exploiting a flaw to push back player 101",
-    "lastPlayedAt": 1788249963847
+    "lastPlayedAt": 1788254201971
   },
   {
     "id": "dd12bbb55060",
@@ -1189,7 +1190,7 @@
     "likes": 0,
     "createdAt": 1788013634333,
     "promptEn": "glass bridge game, held the goal but paid a price",
-    "lastPlayedAt": 1788252773238
+    "lastPlayedAt": 1788254355883
   },
   {
     "id": "5b8ef21616d4",
@@ -1294,7 +1295,7 @@
     "likes": 0,
     "createdAt": 1788012441458,
     "promptEn": "facing Vecna, held the goal but paid a price",
-    "lastPlayedAt": 1788251798845
+    "lastPlayedAt": 1788254283882
   },
   {
     "id": "691c2f679759",
@@ -1429,7 +1430,7 @@
     "likes": 0,
     "createdAt": 1788010775613,
     "promptEn": "facing Voldemort, stayed passive and got cornered",
-    "lastPlayedAt": 1788252633224
+    "lastPlayedAt": 1788254061908
   },
   {
     "id": "795842efa4a1",
@@ -1474,7 +1475,7 @@
     "likes": 0,
     "createdAt": 1788010062535,
     "promptEn": "facing Thanos, held the goal but paid a price",
-    "lastPlayedAt": 1788252076972
+    "lastPlayedAt": 1788254091920
   },
   {
     "id": "324b84ebc607",
@@ -1594,7 +1595,7 @@
     "likes": 0,
     "createdAt": 1788008156307,
     "promptEn": "hotel floor sealed by the Eternity Devil, an endless looping corridor",
-    "lastPlayedAt": 1788251948919
+    "lastPlayedAt": 1788254119932
   },
   {
     "id": "cd3b6dda90ad",
@@ -1654,7 +1655,7 @@
     "likes": 0,
     "createdAt": 1788007201908,
     "promptEn": "breaking into the palace, Neferpitou stalling to protect the king",
-    "lastPlayedAt": 1788252681196
+    "lastPlayedAt": 1788254139946
   },
   {
     "id": "628026375795",
@@ -1699,7 +1700,7 @@
     "likes": 0,
     "createdAt": 1788006252918,
     "promptEn": "facing L, stayed passive and the evidence pressure maxed out",
-    "lastPlayedAt": 1788253113430
+    "lastPlayedAt": 1788254350039
   },
   {
     "id": "0e28a7fecf03",
@@ -1939,7 +1940,7 @@
     "likes": 0,
     "createdAt": 1788002929455,
     "promptEn": "facing Reiner, exploiting a flaw to counter him",
-    "lastPlayedAt": 1788252195030
+    "lastPlayedAt": 1788254288010
   },
   {
     "id": "ea8b38014674",
@@ -1954,7 +1955,7 @@
     "likes": 0,
     "createdAt": 1788002691822,
     "promptEn": "facing Reiner, held the goal but paid a price",
-    "lastPlayedAt": 1788252655237
+    "lastPlayedAt": 1788254037898
   },
   {
     "id": "f65b15d67966",
@@ -2059,7 +2060,7 @@
     "likes": 0,
     "createdAt": 1788001049233,
     "promptEn": "facing Pain, held the goal but paid a price",
-    "lastPlayedAt": 1788251780839
+    "lastPlayedAt": 1788254115931
   },
   {
     "id": "7ecd480a3c31",
@@ -2224,7 +2225,7 @@
     "likes": 0,
     "createdAt": 1787900324972,
     "promptEn": "constable declines a drink, asks what this place is, she watches him through the screen",
-    "lastPlayedAt": 1788252709206
+    "lastPlayedAt": 1788254371882
   },
   {
     "id": "43ee5c728f1b",
@@ -2434,7 +2435,7 @@
     "likes": 0,
     "createdAt": 1787708713767,
     "promptEn": "constable stops looking around, turns to face the screen, speaks to her silhouette",
-    "lastPlayedAt": 1788252811258
+    "lastPlayedAt": 1788254322029
   },
   {
     "id": "5dc95a15cd5d",
@@ -2464,7 +2465,7 @@
     "likes": 0,
     "createdAt": 1787708686397,
     "promptEn": "constable accepts the invitation, moves to sit on a stool closer to the screen",
-    "lastPlayedAt": 1788248577063
+    "lastPlayedAt": 1788254145947
   },
   {
     "id": "ad611bcbd06b",
@@ -2539,7 +2540,7 @@
     "likes": 0,
     "createdAt": 1787708648409,
     "promptEn": "she reaches a hand through the screen gap beckoning him, he steps back and firmly refuses",
-    "lastPlayedAt": 1788251828861
+    "lastPlayedAt": 1788254125936
   },
   {
     "id": "3f0c28f5373a",
@@ -2749,7 +2750,7 @@
     "likes": 0,
     "createdAt": 1787674688717,
     "promptEn": "constable agrees to stay, lets his guard down, she gives a barely-there nod",
-    "lastPlayedAt": 1788250832261
+    "lastPlayedAt": 1788254161950
   },
   {
     "id": "4874fe3fdbc9",
@@ -2779,7 +2780,7 @@
     "likes": 0,
     "createdAt": 1787674642139,
     "promptEn": "constable forms hand seals and summons a giant toad out of smoke",
-    "lastPlayedAt": 1788250076972
+    "lastPlayedAt": 1788254251995
   },
   {
     "id": "e9a6320e18a9",
@@ -2854,7 +2855,7 @@
     "likes": 0,
     "createdAt": 1787674446841,
     "promptEn": "player panics into the room, glances back, out of breath, says something's chasing him outside",
-    "lastPlayedAt": 1788250856275
+    "lastPlayedAt": 1788254185961
   },
   {
     "id": "c25d53a5e086",
@@ -2869,7 +2870,7 @@
     "likes": 0,
     "createdAt": 1787674395006,
     "promptEn": "constable and the woman hold a tense silent stare through the screen",
-    "lastPlayedAt": 1788252897296
+    "lastPlayedAt": 1788254099923
   },
   {
     "id": "f264bce22903",
@@ -2974,7 +2975,7 @@
     "likes": 0,
     "createdAt": 1787640567001,
     "promptEn": "summoned toad Wentai, beat the painted-skin female ghost",
-    "lastPlayedAt": 1788252685196
+    "lastPlayedAt": 1788254552120
   },
   {
     "id": "1cc42a8669a1",
@@ -3004,7 +3005,7 @@
     "likes": 0,
     "createdAt": 1787637292741,
     "promptEn": "constable bursts in panicked, spots the woman behind the screen",
-    "lastPlayedAt": 1788251872881
+    "lastPlayedAt": 1788254566123
   },
   {
     "id": "93c2b84a2a10",
@@ -3139,7 +3140,7 @@
     "likes": 0,
     "createdAt": 1787588545801,
     "promptEn": "game menu UI, character swaps out a mechanical arm",
-    "lastPlayedAt": 1788249159434
+    "lastPlayedAt": 1788254406058
   },
   {
     "id": "fe749aa533a0",
@@ -3184,7 +3185,7 @@
     "likes": 0,
     "createdAt": 1787588544109,
     "promptEn": "vampire romance drama trailer, girl wanders into the castle",
-    "lastPlayedAt": 1788250187972
+    "lastPlayedAt": 1788254272005
   },
   {
     "id": "7ded7db676d3",
@@ -3199,7 +3200,7 @@
     "likes": 0,
     "createdAt": 1787588543551,
     "promptEn": "MiniMax H3 tech brand film, blue waveform logo",
-    "lastPlayedAt": 1788250954321
+    "lastPlayedAt": 1788254047898
   },
   {
     "id": "81711242178d",
@@ -3244,7 +3245,7 @@
     "likes": 0,
     "createdAt": 1787588541726,
     "promptEn": "woman opens the trunk on a desert road, takes out a bag",
-    "lastPlayedAt": 1788251984934
+    "lastPlayedAt": 1788254335882
   },
   {
     "id": "97846542ab09",
@@ -3514,7 +3515,7 @@
     "likes": 0,
     "createdAt": 1787573698485,
     "promptEn": "underground rap duo freestyling at the camera",
-    "lastPlayedAt": 1788252777241
+    "lastPlayedAt": 1788254075916
   },
   {
     "id": "e5246eae814e",
@@ -3543,7 +3544,7 @@
     "partition": "text",
     "likes": 0,
     "createdAt": 1787568512602,
-    "lastPlayedAt": 1788252082974,
+    "lastPlayedAt": 1788254065909,
     "promptEn": "man apologizes, says something outside was chasing him"
   },
   {
@@ -3664,7 +3665,7 @@
     "likes": 0,
     "createdAt": 1787470101411,
     "promptEn": "vertical family-fight drama, arguing with an older woman",
-    "lastPlayedAt": 1788251276478
+    "lastPlayedAt": 1788254011880
   },
   {
     "id": "57169e6751d0",
@@ -3754,7 +3755,7 @@
     "likes": 0,
     "createdAt": 1787470099306,
     "promptEn": "late-night laundromat footage mixed with glowing hand-drawn animation",
-    "lastPlayedAt": 1788251502656
+    "lastPlayedAt": 1788254294016
   },
   {
     "id": "c0e23beb4132",
@@ -3814,7 +3815,7 @@
     "likes": 0,
     "createdAt": 1787455895150,
     "promptEn": "protagonist leaps across rooftops fleeing pursuers",
-    "lastPlayedAt": 1788252253059
+    "lastPlayedAt": 1788254418063
   },
   {
     "id": "2a4e45820135",
@@ -4054,7 +4055,7 @@
     "likes": 0,
     "createdAt": 1787413511959,
     "promptEn": "protagonist leaps across rooftops fleeing pursuers",
-    "lastPlayedAt": 1788251161159
+    "lastPlayedAt": 1788254235982
   },
   {
     "id": "5d4f40bf0889",
@@ -4099,7 +4100,7 @@
     "likes": 0,
     "createdAt": 1787412150062,
     "promptEn": "protagonist leaps across rooftops fleeing pursuers",
-    "lastPlayedAt": 1788252809259
+    "lastPlayedAt": 1788254542110
   },
   {
     "id": "9d2486d6f969",
@@ -4129,7 +4130,7 @@
     "likes": 0,
     "createdAt": 1787388090646,
     "promptEn": "a cat sitting on a windowsill",
-    "lastPlayedAt": 1788252393130
+    "lastPlayedAt": 1788254205967
   },
   {
     "id": "c551457bc55e",
@@ -4159,7 +4160,7 @@
     "likes": 0,
     "createdAt": 1787384983124,
     "promptEn": "protagonist leaps across rooftops fleeing pursuers",
-    "lastPlayedAt": 1788251892892
+    "lastPlayedAt": 1788254354037
   },
   {
     "id": "7753a046ba79",
@@ -4294,7 +4295,7 @@
     "likes": 0,
     "createdAt": 1787367453839,
     "promptEn": "golden portal opens, man in green jacket throws a glowing spear",
-    "lastPlayedAt": 1788252006941
+    "lastPlayedAt": 1788254041895
   },
   {
     "id": "8402adae59dc",
@@ -4309,7 +4310,7 @@
     "likes": 0,
     "createdAt": 1787363956909,
     "promptEn": "protagonist leaps across rooftops fleeing pursuers",
-    "lastPlayedAt": 1788250706222
+    "lastPlayedAt": 1788254362044
   },
   {
     "id": "5692965402f5",
@@ -4399,7 +4400,7 @@
     "likes": 0,
     "createdAt": 1787309864037,
     "promptEn": "transparent gaming mouse product film, blue and orange lighting",
-    "lastPlayedAt": 1788252567195
+    "lastPlayedAt": 1788254219979
   },
   {
     "id": "073f5df6427a",
@@ -4549,7 +4550,7 @@
     "likes": 0,
     "createdAt": 1787225897650,
     "promptEn": "constable burns the beauty portrait with the lamp, the door opens on its own",
-    "lastPlayedAt": 1788253107430
+    "lastPlayedAt": 1788254544113
   },
   {
     "id": "ed3663dcda7f",
@@ -175,6 +175,7 @@ function markPlayed(id) {
   const clip = lib.find((c) => c.id === id);
   if (!clip) return;
   clip.lastPlayedAt = Date.now();
+  clip.playCount = (clip.playCount || 0) + 1;
   saveLibrary(lib);
 }
@@ -225,7 +226,11 @@ function pickNextClip() {
   // random among everything that isn't on cooldown, no bias toward "fresh".
   const offCooldown = notPrev.filter((c) => !c.lastPlayedAt || now - c.lastPlayedAt > REPEAT_COOLDOWN_MS);
   const pool = offCooldown.length ? offCooldown : notPrev;
-  return { clip: pool[Math.floor(Math.random() * pool.length)], requestedBy: null, chatId: null };
+  // Within that pool, only randomize among the least-played clips — keeps
+  // rotation even instead of letting a few clips dominate airtime by chance.
+  const minPlays = Math.min(...pool.map((c) => c.playCount || 0));
+  const leastPlayed = pool.filter((c) => (c.playCount || 0) === minPlays);
+  return { clip: leastPlayed[Math.floor(Math.random() * leastPlayed.length)], requestedBy: null, chatId: null };
 }
 const FAILED_ENTRY_TTL_MS = 20000; // how long a "generation failed" entry stays visible before cleanup