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Mana-Loop/docs/task7/plan_upgrade_effects.md
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feat: add prestige system and skill upgrades with comprehensive documentation
2026-05-01 15:18:09 +02:00

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# Refactor Plan: upgrade-effects.ts
## Current State
- **File:** `src/lib/game/upgrade-effects.ts`
- **Lines:** 466
- **Target:** ≤400 lines (reduce by ~66 lines)
## Proposed File Structure
### 1. `src/lib/game/upgrade-effects.ts` (≈220 lines)
**Keeps:**
- `upgradeDefinitionsById` (cache)
- `buildUpgradeCache` function
- `getActiveUpgrades` function
- `computeEffects` function (core orchestrator)
- Evolution path dependency (`SKILL_EVOLUTION_PATHS`, `getUpgradesForSkillAtMilestone`)
**Rationale:** This remains the core orchestration module that ties together evolution paths with upgrade computation.
### 2. `src/lib/game/upgrade-effects.types.ts` (≈60 lines)
**Contains:**
- `ActiveUpgradeEffect` interface
- `ComputedEffects` interface
- Re-exports for type consumers
**Rationale:** Pure type definitions separated for clarity.
### 3. `src/lib/game/special-effects.ts` (≈80 lines)
**Contains:**
- `SPECIAL_EFFECTS` constant record
- `hasSpecial` function
**Rationale:** Isolates special effect keys and the simple predicate function.
### 4. `src/lib/game/dynamic-compute.ts` (≈100 lines)
**Contains:**
- `computeDynamicRegen` function
- `computeDynamicClickMana` function
- `computeDynamicDamage` function
**Rationale:** Groups the three dynamic computation functions that all depend on `SPECIAL_EFFECTS` and share similar patterns.
## Circular Import Risks
**LOW RISK:**
- `upgrade-effects.ts` depends on `skill-evolution` - one-way dependency.
- New files import types from `upgrade-effects.types.ts` and `special-effects.ts`.
- `dynamic-compute.ts` depends on `special-effects.ts` and types - safe.
**MITIGATION:**
- Keep type re-exports clean.
- If `computeEffects` needs dynamic functions, import them from `dynamic-compute.ts`.
## Extraction Order
**1 → 2 → 3 → 4**
1. Create `upgrade-effects.types.ts`, move type interfaces, update imports.
2. Create `special-effects.ts`, move `SPECIAL_EFFECTS` + `hasSpecial`, update imports.
3. Create `dynamic-compute.ts`, move the three `computeDynamic*` functions, update imports.
4. Trim `upgrade-effects.ts` - remove moved items, update internal imports.
## Import Updates Required
Files importing from `upgrade-effects.ts` need updates:
- Types → `upgrade-effects.types.ts`
- Special effects → `special-effects.ts`
- Dynamic compute → `dynamic-compute.ts`
- Core functions → `upgrade-effects.ts`