// tsconfig.json
{
    "compilerOptions": {
        "target": "es5",
        "module": "commonjs",
        "lib": ["dom", "es6", "es2017"],
        "strict": true,
        "esModuleInterop": true,
        "skipLibCheck": true,
        "forceConsistentCasingInFileNames": true,
        "outDir": "./dist",
        "rootDir": "./src",
        "baseUrl": "./",
        "paths": {
            "@components/*": ["src/components/*"],
            "@services/*": ["src/services/*"],
            "@types/*": ["src/types/*"]
        }
    },
    "include": [
        "src/**/*"
    ],
    "exclude": [
        "node_modules",
        "**/*.spec.ts"
    ]
}

// WordPress Types
interface WPPost {
    ID: number;
    post_author: number;
    post_date: string;
    post_content: string;
    post_title: string;
    post_status: 'publish' | 'draft' | 'private';
    post_type: string;
    meta: {
        [key: string]: string | number | boolean;
    };
}

// Custom Post Type Definition
interface CustomPostType extends WPPost {
    custom_fields: {
        field1: string;
        field2: number;
        field3: boolean;
    };
    taxonomies: {
        [key: string]: string[];
    };
}

// API Response Types
interface WPAPIResponse {
    success: boolean;
    data: T;
    message?: string;
}

// REST API Client
class WPAPIClient {
    private baseUrl: string;
    private nonce: string;

    constructor(baseUrl: string, nonce: string) {
        this.baseUrl = baseUrl;
        this.nonce = nonce;
    }

    async getPosts(): Promise<WPAPIResponse<T[]>> {
        try {
            const response = await fetch(`${this.baseUrl}/wp/v2/posts`, {
                headers: {
                    'X-WP-Nonce': this.nonce
                }
            });

            if (!response.ok) {
                throw new Error('Network response was not ok');
            }

            const data = await response.json();
            return {
                success: true,
                data: data as T[]
            };
        } catch (error) {
            return {
                success: false,
                data: [] as T[],
                message: error.message
            };
        }
    }

    async createPost(post: Partial): Promise<WPAPIResponse> {
        try {
            const response = await fetch(`${this.baseUrl}/wp/v2/posts`, {
                method: 'POST',
                headers: {
                    'X-WP-Nonce': this.nonce,
                    'Content-Type': 'application/json'
                },
                body: JSON.stringify(post)
            });

            if (!response.ok) {
                throw new Error('Failed to create post');
            }

            const data = await response.json();
            return {
                success: true,
                data: data as T
            };
        } catch (error) {
            return {
                success: false,
                data: {} as T,
                message: error.message
            };
        }
    }
}

// Custom Gutenberg Block with TypeScript
import { registerBlockType } from '@wordpress/blocks';
import { useBlockProps, RichText } from '@wordpress/block-editor';

interface BlockAttributes {
    content: string;
    alignment: 'left' | 'center' | 'right';
    backgroundColor: string;
}

registerBlockType('my-plugin/custom-block', {
    title: 'Custom Block',
    icon: 'smiley',
    category: 'common',
    attributes: {
        content: {
            type: 'string',
            source: 'html',
            selector: 'p'
        },
        alignment: {
            type: 'string',
            default: 'left'
        },
        backgroundColor: {
            type: 'string',
            default: '#ffffff'
        }
    },

    edit: ({ attributes, setAttributes }) => {
        const blockProps = useBlockProps({
            style: { 
                textAlign: attributes.alignment,
                backgroundColor: attributes.backgroundColor
            }
        });

        return (

); }, save: ({ attributes }) => { const blockProps = useBlockProps.save({ style: { textAlign: attributes.alignment, backgroundColor: attributes.backgroundColor } }); return (

); } });

// State Management System
class WordPressStateManager {
    private state: T;
    private subscribers: Set<(state: T) => void>;
    private static instance: WordPressStateManager;

    private constructor(initialState: T) {
        this.state = new Proxy(initialState, {
            set: (target, property, value) => {
                target[property as keyof T] = value;
                this.notifySubscribers();
                return true;
            }
        });
        this.subscribers = new Set();
    }

    static getInstance(initialState: T): WordPressStateManager {
        if (!WordPressStateManager.instance) {
            WordPressStateManager.instance = new WordPressStateManager(initialState);
        }
        return WordPressStateManager.instance;
    }

    subscribe(callback: (state: T) => void): () => void {
        this.subscribers.add(callback);
        return () => this.subscribers.delete(callback);
    }

    private notifySubscribers(): void {
        this.subscribers.forEach(callback => callback(this.state));
    }

    getState(): T {
        return this.state;
    }

    setState(partialState: Partial): void {
        Object.assign(this.state, partialState);
    }

    // Persistent State Management
    async persistToDatabase(): Promise {
        try {
            await wp.api.request({
                path: '/wp/v2/settings',
                method: 'POST',
                data: { 
                    custom_state: JSON.stringify(this.state)
                }
            });
            return true;
        } catch (error) {
            console.error('State persistence failed:', error);
            return false;
        }
    }

    async loadFromDatabase(): Promise {
        try {
            const response = await wp.api.request({
                path: '/wp/v2/settings'
            });
            if (response.custom_state) {
                this.setState(JSON.parse(response.custom_state));
            }
        } catch (error) {
            console.error('State loading failed:', error);
        }
    }
}

// Form Management System
interface FormField {
    value: string | number | boolean;
    validators: Array<(value: any) => string | null>;
    touched: boolean;
    error: string | null;
}

interface FormState {
    fields: { [key: string]: FormField };
    isValid: boolean;
    isSubmitting: boolean;
}

class TypedFormManager {
    private state: FormState;
    private stateManager: WordPressStateManager;

    constructor(fields: { [key: string]: FormField }) {
        this.state = {
            fields,
            isValid: false,
            isSubmitting: false
        };
        this.stateManager = WordPressStateManager.getInstance(this.state);
    }

    validateField(fieldName: string): void {
        const field = this.state.fields[fieldName];
        let error: string | null = null;

        for (const validator of field.validators) {
            error = validator(field.value);
            if (error) break;
        }

        this.stateManager.setState({
            fields: {
                ...this.state.fields,
                [fieldName]: {
                    ...field,
                    error
                }
            }
        });

        this.validateForm();
    }

    private validateForm(): void {
        const isValid = Object.values(this.state.fields).every(
            field => !field.error && field.touched
        );

        this.stateManager.setState({ isValid });
    }

    async handleSubmit(callback: (data: any) => Promise): Promise {
        this.stateManager.setState({ isSubmitting: true });

        try {
            const formData = Object.entries(this.state.fields).reduce(
                (acc, [key, field]) => ({
                    ...acc,
                    [key]: field.value
                }),
                {}
            );

            await callback(formData);

            // Reset form after successful submission
            this.resetForm();
        } catch (error) {
            console.error('Form submission failed:', error);
            throw error;
        } finally {
            this.stateManager.setState({ isSubmitting: false });
        }
    }

    private resetForm(): void {
        const resetFields = Object.entries(this.state.fields).reduce(
            (acc, [key, field]) => ({
                ...acc,
                [key]: {
                    ...field,
                    value: '',
                    touched: false,
                    error: null
                }
            }),
            {}
        );

        this.stateManager.setState({
            fields: resetFields,
            isValid: false,
            isSubmitting: false
        });
    }
}

// REST API Integration
interface APIEndpoint<T, R> {
    path: string;
    method: 'GET' | 'POST' | 'PUT' | 'DELETE';
    prepare?: (data: T) => any;
    transform?: (response: any) => R;
}

class TypedAPIClient {
    private readonly baseUrl: string;
    private readonly endpoints: Map<string, APIEndpoint<any, any>>;

    constructor(baseUrl: string) {
        this.baseUrl = baseUrl;
        this.endpoints = new Map();
    }

    registerEndpoint<T, R>(
        name: string, 
        endpoint: APIEndpoint<T, R>
    ): void {
        this.endpoints.set(name, endpoint);
    }

    async call<T, R>(
        endpointName: string, 
        data?: T
    ): Promise {
        const endpoint = this.endpoints.get(endpointName);
        if (!endpoint) {
            throw new Error(`Unknown endpoint: ${endpointName}`);
        }

        const preparedData = endpoint.prepare ? 
            endpoint.prepare(data) : data;

        try {
            const response = await fetch(
                `${this.baseUrl}${endpoint.path}`,
                {
                    method: endpoint.method,
                    headers: {
                        'Content-Type': 'application/json',
                        'X-WP-Nonce': wpApiSettings.nonce
                    },
                    body: preparedData ? 
                        JSON.stringify(preparedData) : undefined
                }
            );

            if (!response.ok) {
                throw new Error(`API call failed: ${response.statusText}`);
            }

            const responseData = await response.json();
            return endpoint.transform ? 
                endpoint.transform(responseData) : responseData;
        } catch (error) {
            console.error(`API call to ${endpointName} failed:`, error);
            throw error;
        }
    }
}

// Dependencies and Performance Management
class ModuleLoader {
    private loadedModules: Set = new Set();
    private modulePromises: Map<string, Promise> = new Map();
    private dependencyGraph: Map<string, string[]> = new Map();

    async loadModule(
        moduleName: string, 
        dependencies: string[] = []
    ): Promise {
        if (this.loadedModules.has(moduleName)) {
            return;
        }

        // Register dependencies
        this.dependencyGraph.set(moduleName, dependencies);

        // Load dependencies first
        await Promise.all(
            dependencies.map(dep => this.loadModule(dep))
        );

        // Load the actual module
        if (!this.modulePromises.has(moduleName)) {
            this.modulePromises.set(
                moduleName,
                this.actuallyLoadModule(moduleName)
            );
        }

        await this.modulePromises.get(moduleName);
        this.loadedModules.add(moduleName);
    }

    private async actuallyLoadModule(
        moduleName: string
    ): Promise {
        // Implement actual module loading logic here
        const script = document.createElement('script');
        script.src = `/wp-content/themes/your-theme/dist/${moduleName}.js`;
        script.type = 'module';

        return new Promise((resolve, reject) => {
            script.onload = () => resolve();
            script.onerror = () => reject(
                new Error(`Failed to load ${moduleName}`)
            );
            document.head.appendChild(script);
        });
    }

    getDependencyOrder(): string[] {
        const visited = new Set();
        const order: string[] = [];

        const visit = (moduleName: string) => {
            if (visited.has(moduleName)) return;
            visited.add(moduleName);

            const dependencies = this.dependencyGraph.get(moduleName) || [];
            dependencies.forEach(visit);
            order.push(moduleName);
        };

        Array.from(this.dependencyGraph.keys()).forEach(visit);
        return order;
    }
}

// Performance Monitoring
class PerformanceMonitor {
    private metrics: Map<string, number[]> = new Map();

    startMeasure(name: string): void {
        performance.mark(`${name}-start`);
    }

    endMeasure(name: string): void {
        performance.mark(`${name}-end`);
        performance.measure(
            name,
            `${name}-start`,
            `${name}-end`
        );

        const entries = performance.getEntriesByName(name);
        if (!this.metrics.has(name)) {
            this.metrics.set(name, []);
        }
        this.metrics.get(name)?.push(entries[entries.length - 1].duration);
    }

    getAverageMetric(name: string): number {
        const measurements = this.metrics.get(name) || [];
        if (measurements.length === 0) return 0;

        return measurements.reduce((a, b) => a + b, 0) / measurements.length;
    }

    reportMetrics(): void {
        console.table(
            Array.from(this.metrics.entries()).map(([name, measurements]) => ({
                name,
                average: this.getAverageMetric(name),
                min: Math.min(...measurements),
                max: Math.max(...measurements),
                samples: measurements.length
            }))
        );
    }
}

// Security Management System
class SecurityManager {
    private readonly nonceValidator: NonceValidator;
    private readonly inputSanitizer: InputSanitizer;
    private readonly accessController: AccessController;

    constructor() {
        this.nonceValidator = new NonceValidator();
        this.inputSanitizer = new InputSanitizer();
        this.accessController = new AccessController();
    }

    validateRequest(request: any): boolean {
        return this.nonceValidator.validate(request.nonce) &&
               this.accessController.checkPermissions(request.user);
    }
}

class NonceValidator {
    private readonly nonces: Map<string, number> = new Map();
    
    generate(): string {
        const nonce = crypto.randomBytes(32).toString('hex');
        this.nonces.set(nonce, Date.now());
        return nonce;
    }

    validate(nonce: string): boolean {
        const timestamp = this.nonces.get(nonce);
        if (!timestamp) return false;

        const isValid = Date.now() - timestamp < 3600000; // 1 hour if (!isValid) this.nonces.delete(nonce); return isValid; } } class InputSanitizer { sanitizeHTML(input: string): string { // Use DOMPurify for HTML sanitization return DOMPurify.sanitize(input, { ALLOWED_TAGS: ['p', 'br', 'strong', 'em'], ALLOWED_ATTR: ['href', 'title'] }); } sanitizeSQL(input: string): string { // Escape SQL injection attempts return input.replace(/[\0\x08\x09\x1a\n\r"'\\\%]/g, char => {
            switch (char) {
                case "\0": return "\\0";
                case "\x08": return "\\b";
                case "\x09": return "\\t";
                case "\x1a": return "\\z";
                case "\n": return "\\n";
                case "\r": return "\\r";
                case "\"":
                case "'":
                case "\\":
                case "%": return "\\"+char;
                default: return char;
            }
        });
    }
}

// Testing Framework Integration
import { test, expect } from '@jest/globals';
import { render, screen } from '@testing-library/react';

interface TestCase {
    input: T;
    expected: any;
    description: string;
}

class TestSuite {
    private testCases: TestCase[] = [];
    private setupFn?: () => Promise;
    private teardownFn?: () => Promise;

    addTestCase(testCase: TestCase): void {
        this.testCases.push(testCase);
    }

    beforeAll(fn: () => Promise): void {
        this.setupFn = fn;
    }

    afterAll(fn: () => Promise): void {
        this.teardownFn = fn;
    }

    async runTests(testFn: (input: T) => Promise): Promise {
        if (this.setupFn) await this.setupFn();

        for (const testCase of this.testCases) {
            test(testCase.description, async () => {
                const result = await testFn(testCase.input);
                expect(result).toEqual(testCase.expected);
            });
        }

        if (this.teardownFn) await this.teardownFn();
    }
}

// Example Test Implementation
describe('WordPress Component Tests', () => {
    const testSuite = new TestSuite();

    testSuite.beforeAll(async () => {
        // Setup test environment
        global.wp = {
            api: {
                request: jest.fn()
            }
        };
    });

    testSuite.addTestCase({
        input: { post_title: 'Test Post' },
        expected: { id: 1, post_title: 'Test Post' },
        description: 'should create a new post'
    });

    testSuite.runTests(async (input) => {
        const component = render();
        // Test implementation
        return component.getByTestId('post-title').textContent;
    });
});

// Deployment Manager
class DeploymentManager {
    private readonly config: DeploymentConfig;
    private readonly buildManager: BuildManager;
    private readonly versionManager: VersionManager;

    constructor(config: DeploymentConfig) {
        this.config = config;
        this.buildManager = new BuildManager();
        this.versionManager = new VersionManager();
    }

    async deploy(): Promise {
        // Validate environment
        await this.validateEnvironment();

        // Build process
        const buildResult = await this.buildManager.build();
        if (!buildResult.success) {
            throw new Error(`Build failed: ${buildResult.error}`);
        }

        // Version management
        const version = await this.versionManager.bump();
        
        // Asset optimization
        await this.optimizeAssets();

        // Database updates
        await this.updateDatabase();

        // Cache clearing
        await this.clearCaches();
    }

    private async optimizeAssets(): Promise {
        const optimizer = new AssetOptimizer({
            minifyJS: true,
            minifyCSS: true,
            optimizeImages: true,
            bundleChunking: true
        });

        await optimizer.process(this.config.assetPaths);
    }

    private async clearCaches(): Promise {
        await Promise.all([
            this.clearPageCache(),
            this.clearObjectCache(),
            this.clearCDNCache()
        ]);
    }
}

// Rollback Support
class RollbackManager {
    private readonly backupManager: BackupManager;
    private readonly versionManager: VersionManager;

    async createSnapshot(): Promise {
        return await this.backupManager.snapshot();
    }

    async rollback(snapshotId: string): Promise {
        await this.backupManager.restore(snapshotId);
        await this.versionManager.revert();
    }
}

// Build Process
class BuildManager {
    async build(): Promise {
        try {
            // TypeScript compilation
            await this.compileTypeScript();

            // Webpack bundling
            await this.bundleAssets();

            // Run tests
            await this.runTests();

            return { success: true };
        } catch (error) {
            return { 
                success: false, 
                error: error.message 
            };
        }
    }
}