# Tasks: enterprise-react-rule-builder

**Change ID**: enterprise-react-rule-builder
**Package**: `@suaveplan/react-rule-builder`
**Target path**: `react/forms/react-rule-builder`
**Prerequisite packages on Verdaccio**: `@suaveplan/error`, `@suaveplan/react-dnd`, `@suaveplan/react-translate`, `@suaveplan/react-ui`

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## 0. Pre-flight (non-negotiable)

- [ ] 0.1 Confirm clean working tree (`git status` reports nothing) and no in-flight worktrees with uncommitted work (`git worktree list` then `git status` in each)
- [ ] 0.2 If any worktrees exist under `.claude/worktrees/`, account for each one: still-active agent, work-pending-merge, or stale-and-prune. Stale worktrees MUST be removed (`git worktree remove`) before opening a new one — code that has been lost twice on main is the failure mode this guards against.
- [ ] 0.3 Confirm the package set in `MANIFEST.md` matches `find packages -maxdepth 3 -name package.json` count. Drift here means a prior change archived without regenerating the manifest.

## 1. Scaffold

- [ ] Create directory tree per proposal layout.
- [ ] Write `package.json` at `0.1.0` with `"sideEffects": false`, exports map.
- [ ] Dependencies: `@suaveplan/error workspace:^`, `@suaveplan/react-dnd workspace:^`, `@suaveplan/react-translate workspace:^`, `@suaveplan/react-ui workspace:^`, `zod catalog:forms`, `@opentelemetry/api catalog:observability`, `tslib catalog:build`.
- [ ] Write `tsconfig.json`, `vitest.config.ts`, scripts.
- [ ] Confirm `src/mocks/` directory is NOT created — no mocks under any circumstance.

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## 2. Error codes and types

- [ ] Define `RuleBuilderError` extending `SuaveplanError`; codes: `RULE_BUILDER_INVALID_PATH`, `RULE_BUILDER_INVALID_RULE`.
- [ ] Define `FieldDefinition`, `OperatorOption`, `SelectOption`, `RuleBuilderProps`, `LogicGroupProps`, `ConditionRowProps`, `OnRuleChange`.
- [ ] Define `DEFAULT_OPERATORS` constant.
- [ ] Write `RuleSchema` Zod schema for the rule AST.

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## 3. Utils (`src/utils/rule-helpers/`)

- [ ] Implement `createEmptyCondition(fieldDefs)`, `createEmptyGroup()`.
- [ ] Implement `getApplicableOperators(field, fieldDefs)`, `getRuleAtPath(rule, path)`, `insertRuleAtPath(rule, path, item)`, `removeRuleAtPath(rule, path)`, `updateRuleAtPath(rule, path, updates)`.
- [ ] Validate paths in `get/insert/remove/update` — throw `RuleBuilderError(RULE_BUILDER_INVALID_PATH)` on invalid path.
- [ ] Write `rule-helpers.test.ts` (≤500 lines): each helper, nested paths, invalid path throws. `{ timeout: 5000 }`.
- [ ] Write `rule-helpers.md`.

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## 4. Hook — `useRuleBuilder`

- [ ] Manages `rule` state; exposes `addCondition(path)`, `addGroup(path)`, `removeItem(path)`, `updateCondition(path, updates)`, `toggleLogic(path)`, `moveItem(from, to)`.
- [ ] Validates rule via `RuleSchema` before calling `onRuleChange`; on failure throws `RuleBuilderError(RULE_BUILDER_INVALID_RULE)`.
- [ ] Write `use-rule-builder.test.ts`: add, remove, update, move — all using real `useRuleBuilder`. `{ timeout: 5000 }`.
- [ ] Write `use-rule-builder.md`.

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## 5. Components

### ConditionRow

- [ ] Field selector (from `FieldDefinition[]`), operator selector (from `getApplicableOperators`), value input. Uses `@suaveplan/react-ui` `Select` + `Input`.
- [ ] Write test (real `@suaveplan/react-ui` provider), stories (default, all-operators, playground), md.

### LogicGroup

- [ ] AND/OR/NOT toggle (uses `@suaveplan/react-ui` `ToggleGroup`); renders children recursively; add-condition + add-group buttons; drag handle wired to `@suaveplan/react-dnd` `Draggable`.
- [ ] Write test (nested groups, drag reorder triggers `moveItem`), stories (default, nested, drag-reorder, playground), md.

### RuleBuilder

- [ ] Top-level: renders root `LogicGroup`; wraps `useRuleBuilder`; wires `DndProvider` from `@suaveplan/react-dnd`.
- [ ] Write test (full render with real deps), stories (default, with-field-definitions, nested-groups, drag-reorder, playground), md.

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## 6. E2E

- [ ] `e2e/rule-builder.spec.ts` — Playwright:
  - Add a condition, set field + operator + value, verify AST.
  - Add nested group, verify nesting.
  - Drag condition to reorder, verify `moveItem` reflected in AST.

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## 7. Verify and publish

- [ ] `bunx turbo lint typecheck test --filter=@suaveplan/react-rule-builder` — green.
- [ ] `bunx turbo test:coverage --filter=@suaveplan/react-rule-builder` — 100%.
- [ ] `bun scripts/publish.ts --package @suaveplan/react-rule-builder`.
- [ ] Archive change folder.