Just Assisted Combat

[4.19.4] - 2026-04-14

Fixed

• Interrupt/CC CD detection broken — Kick re-recommended while on cooldown: IsInterruptOnCooldown() in SpellDB.lua was always fail-open. A file-scope LibStub("JustAC-BlizzardAPI", true) captured nil because SpellDB.lua loads before BlizzardAPI.lua in JustAC.toc. Every call hit the nil guard and returned false, making every spell appear ready regardless of actual cooldown state. Fixed with a lazy getter that resolves on first call after all libraries are loaded.
• CheckCooldownCompletions prematurely clearing interrupt/defensive CDs: Was treating isOnGCD == true from SPELL_UPDATE_COOLDOWN as "real CD done" for all tracked categories. For unflagged spells (Kick, Blind, defensives etc.), isOnGCD == true fires during the GCD window after the cast — not as a CD-expiry signal. Restricted this clear to "rotation" category only (the only category that reliably uses Blizzard's flagged nil → false → nil CD state machine).
• CheckUsabilityFlips clearing local CDs via ACTION_USABLE_CHANGED: Was wiping localCooldowns[spellID] whenever usable=true fired for a slot, assuming it meant the CD expired. IsUsableAction returns true even while a spell is on cooldown, so energy ticks and target changes were clearing active CDs. Removed flat localCooldowns clearing from this path; charge recovery hints preserved.
• CC-failure learning incorrectly triggered by interrupt spells: Kick, Wind Shear, Counterspell, and other pure interrupts are in CROWD_CONTROL_SPELLS (for DPS rotation exclusion). This caused NotifyCCCastOnTarget() to fire on every successful interrupt cast. 0.4 s later UnitIsCrowdControlled("target") returns false (interrupts don't apply a CC mechanic), setting ccFailureObserved = true and marking the target as CC-immune for the rest of combat — suppressing Blind and all other CC fallbacks. Fixed: added SpellDB.IsInterruptTypeSpell() (lazy set from CLASS_INTERRUPT_DEFAULTS type="interrupt" entries) and guarded NotifyCCCastOnTarget() to skip pure interrupt spells.

Added

• /jac interrupts command: Dumps the resolved interrupt/CC list with per-spell CD state (IsInterruptOnCooldown, localCD, IsReady, usable, isOnGCD), plus target interrupt-worthy, CC-immune, and current interrupt mode. Useful for diagnosing interrupt/CC queue issues in combat.
• /jac testcd extended: Now includes C_Spell.GetSpellCooldown raw isOnGCD field, IsSpellOnLocalCooldown, IsSpellReady, and IsInterruptOnCooldown output (section 5 and 6).