aetherlight/out/workflow/persistence.js

Voice-to-intelligence platform for developers. Voice capture, sprint planning with AI, bug/feature forms, pattern matching to prevent AI hallucinations.

"use strict";
/**
 * Workflow State Persistence - Save/load workflow state
 *
 * DESIGN DECISION: File-based persistence with atomic writes
 * WHY: Survives VS Code restarts, enables workflow recovery
 *
 * REASONING CHAIN:
 * 1. Workflow state serialized to JSON
 * 2. Write to temp file (.tmp)
 * 3. Atomic rename (temp → final)
 * 4. On VS Code restart: Read state file
 * 5. Reconstruct state machine from JSON
 * 6. Result: Workflow resumes exactly where it left off
 *
 * PATTERN: Pattern-PERSISTENCE-001 (Atomic File Persistence)
 * RELATED: AS-014 (File-Based IPC), AS-015 (Workflow State Machine)
 */
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Object.defineProperty(exports, "__esModule", { value: true });
exports.WorkflowPersistence = void 0;
const fs = __importStar(require("fs"));
const path = __importStar(require("path"));
const state_machine_1 = require("./state_machine");
/**
 * Workflow state persistence manager
 */
class WorkflowPersistence {
    /**
     * Create persistence manager
     *
     * @param workflowDir - Directory for workflow files (default: .lumina/workflow)
     */
    constructor(workflowDir) {
        this.stateFile = path.join(workflowDir, 'workflow-state.json');
        // Ensure directory exists
        if (!fs.existsSync(workflowDir)) {
            fs.mkdirSync(workflowDir, { recursive: true });
        }
    }
    /**
     * Save workflow state
     *
     * DESIGN DECISION: Atomic write (temp + rename)
     * WHY: Prevents corruption if VS Code crashes during write
     */
    async save(machine) {
        const tempFile = `${this.stateFile}.tmp`;
        // Serialize to JSON (pretty for debugging)
        const json = JSON.stringify(machine.toJSON(), null, 2);
        // Write to temp file
        fs.writeFileSync(tempFile, json, 'utf8');
        // Atomic rename
        fs.renameSync(tempFile, this.stateFile);
    }
    /**
     * Load workflow state
     *
     * @returns Workflow state machine or null if no saved state
     */
    async load() {
        if (!fs.existsSync(this.stateFile)) {
            return null;
        }
        try {
            const json = fs.readFileSync(this.stateFile, 'utf8');
            const data = JSON.parse(json);
            return state_machine_1.WorkflowStateMachine.fromJSON(data);
        }
        catch (error) {
            console.error('Failed to load workflow state:', error);
            return null;
        }
    }
    /**
     * Check if saved state exists
     */
    exists() {
        return fs.existsSync(this.stateFile);
    }
    /**
     * Delete saved state
     *
     * DESIGN DECISION: Manual cleanup after workflow complete
     * WHY: Prevents stale state from interfering with new sprints
     */
    async delete() {
        if (fs.existsSync(this.stateFile)) {
            fs.unlinkSync(this.stateFile);
        }
    }
    /**
     * Save workflow snapshot (lightweight alternative)
     *
     * DESIGN DECISION: Separate snapshot file for quick reads
     * WHY: UI can read snapshot without deserializing full state machine
     *
     * @param snapshot - Workflow snapshot
     */
    async saveSnapshot(snapshot) {
        const snapshotFile = path.join(path.dirname(this.stateFile), 'workflow-snapshot.json');
        const tempFile = `${snapshotFile}.tmp`;
        const json = JSON.stringify(snapshot, null, 2);
        fs.writeFileSync(tempFile, json, 'utf8');
        fs.renameSync(tempFile, snapshotFile);
    }
    /**
     * Load workflow snapshot
     *
     * @returns Workflow snapshot or null if not found
     */
    async loadSnapshot() {
        const snapshotFile = path.join(path.dirname(this.stateFile), 'workflow-snapshot.json');
        if (!fs.existsSync(snapshotFile)) {
            return null;
        }
        try {
            const json = fs.readFileSync(snapshotFile, 'utf8');
            return JSON.parse(json);
        }
        catch (error) {
            console.error('Failed to load workflow snapshot:', error);
            return null;
        }
    }
}
exports.WorkflowPersistence = WorkflowPersistence;
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