import { CodeSolverSDK } from 'solver-sdk';

const sdk = await CodeSolverSDK.create({
  baseURL: 'https://api.example.com',
  getAuthToken: async () => getToken()
});

// Projects
const projects = await sdk.projects.getAllProjects();
await sdk.projects.createProject('MyProject');

// Chat with Thinking
const response = await sdk.chat.chat([
  { role: 'user', content: 'explain this code' }
], { thinking: { type: 'enabled', budget_tokens: 10000 } });

// Search
const results = await sdk.search.searchCode({
  projectId,
  query: 'authentication function'
});

// User & Updates
const profile = await sdk.user.getProfile();
const update = await sdk.updates.checkForUpdates({...});

// Local dev
const sdk = await CodeSolverSDK.create({
  baseURL: 'http://localhost:3000',
  getAuthToken: async () => 'your-token'
});

// Production with token refresh + error handling
import { AuthenticationError } from 'solver-sdk';

const sdk = await CodeSolverSDK.create({
  baseURL: 'https://api.example.com',
  getAuthToken: async () => {
    if (isTokenExpired()) {
      await refreshToken();
    }
    return getToken();
  }
});

// All methods throw AuthenticationError on 401
try {
  await sdk.user.getProfile();
} catch (error) {
  if (error instanceof AuthenticationError) {
    await refreshToken();
    // retry
  }
}

// Connect
await sdk.connectWebSocket();

// Subscribe to project
sdk.projectSync.subscribeToProject(projectId);

// Listen for updates
sdk.projectSync.on('sync-progress', (data) => {
  console.log(`Progress: ${data.processedFiles}/${data.totalFiles}`);
});

sdk.projectSync.on('sync-completed', (data) => {
  console.log(`Done: ${data.statistics.totalFiles} files`);
});

import { 
  // Auth errors
  AuthenticationError,    // 401 - token expired/invalid
  ForbiddenError,        // 403 - access denied
  
  // Client errors  
  ValidationError,       // 422 - invalid data
  NotFoundError,        // 404 - resource not found
  ConflictError,        // 409 - data conflict
  BadRequestError,      // 400 - bad request
  
  // Server errors
  InternalServerError,   // 500 - server error
  ServiceUnavailableError, // 503 - service down
  GatewayTimeoutError,   // 504 - timeout
  
  // Special errors
  LimitExceededError,    // 403 - credits limit exceeded
  RateLimitError,        // 429 - too many requests
  NetworkError,          // 0 - network failure
  TimeoutError,          // 408 - request timeout
  DatabaseError          // 400 - database error
} from 'solver-sdk';

try {
  const status = await sdk.credits.getStatus();
  console.log(status.balance);
  
} catch (error) {
  // All errors have common properties:
  console.log(error.statusCode);   // HTTP status code
  console.log(error.errorType);    // Error type string
  console.log(error.requestId);    // For correlation with backend logs
  console.log(error.timestamp);    // When error occurred
  console.log(error.rawResponse);  // Full backend response
}

import { AuthenticationError } from 'solver-sdk';

try {
  const balance = await sdk.credits.getBalance();
} catch (error) {
  if (error instanceof AuthenticationError) {
    // Token expired or invalid
    console.log('Token expired, refreshing...');
    await refreshToken();
    // Retry the request
    return retry();
  }
}

import { CodeSolverSDK } from 'solver-sdk';

const sdk = await CodeSolverSDK.create({ /* ... */ });

// Get detailed limit status
const status = await sdk.user.getLimitStatus();

console.log(`Status: ${status.status}`); // 'ok' | 'warning' | 'critical' | 'blocked' | 'on_demand'
console.log(`Can make requests: ${status.canMakeRequest}`);

if (status.status === 'warning' || status.status === 'critical') {
  console.warn(`Warning: ${status.message}`);
}

if (status.action) {
  console.log(`Recommendation: ${status.action.suggestion}`);
}

import { CodeSolverSDK, LimitExceededError } from 'solver-sdk';

try {
  await sdk.chat.streamChat([
    { role: 'user', content: 'Hello' }
  ]);
} catch (error) {
  if (error instanceof LimitExceededError) {
    console.log('WorkCoins exceeded!');
    console.log(`Message: ${error.message}`); // 'WorkCoins исчерпаны. Купите тариф...'
    console.log(`Blocked: ${error.isBlocked()}`); // true/false
    
    // Action recommendation
    if (error.action) {
      console.log(`Action: ${error.action.type}`); // 'upgrade' | 'enable_overage'
      console.log(`Suggestion: ${error.action.suggestion}`);
      console.log(`URL: ${error.action.url}`);
    }
    
    // Balance details
    if (error.balance) {
      console.log(`Used: ${error.balance.percentUsed}%`);
      console.log(`Credits: ${error.balance.creditsUsed}/${error.balance.creditsLimit}`);
    }
  }
}

import { CodeSolverSDK, RateLimitError } from 'solver-sdk';

try {
  // Making multiple requests rapidly
  for (let i = 0; i < 100; i++) {
    await sdk.user.getProfile();
  }
} catch (error) {
  if (error instanceof RateLimitError) {
    console.log('Rate limit exceeded!');
    console.log(`Wait ${error.retryAfter} seconds`);
    console.log(`Retry at: ${error.retryAt}`);
    console.log(`Time remaining: ${error.getRetryDelayMs()}ms`);
    
    // Wait and retry
    await new Promise(resolve => setTimeout(resolve, error.getRetryDelayMs()));
    // ... retry request
  }
}

// Check before making expensive operations
async function sendChatMessage(message: string) {
  // 1. Check limit status first
  const status = await sdk.user.getLimitStatus();
  
  if (!status.canMakeRequest) {
    console.error('Cannot make request:', status.message);
    return;
  }
  
  if (status.status === 'warning') {
    console.warn('Low on tokens:', status.message);
  }
  
  // 2. Make the request
  try {
    await sdk.chat.streamChat([
      { role: 'user', content: message }
    ]);
  } catch (error) {
    if (error instanceof LimitExceededError) {
      // Handle limit error
    } else if (error instanceof RateLimitError) {
      // Handle rate limit
    }
  }
}

const balance = await sdk.credits.getBalance();

console.log(`WorkCoins limit: ${balance.creditsLimit}`);
console.log(`WorkCoins used: ${balance.creditsUsed}`);
console.log(`WorkCoins remaining: ${balance.creditsRemaining}`);
console.log(`Usage: ${balance.percentUsed}%`);

if (balance.bonusCredits) {
  console.log(`Bonus WorkCoins: ${balance.bonusCredits}`);
}

if (balance.overageEnabled) {
  console.log(`Overage WorkCoins used: ${balance.overageCreditsUsed}/${balance.overageLimit}`);
}

const status = await sdk.credits.getStatus();

console.log(`Status: ${status.status}`); // 'ok' | 'warning' | 'critical' | 'depleted'
console.log(`Can make request: ${status.canMakeRequest}`);
console.log(`Message: ${status.message}`);

if (status.action) {
  console.log(`Action: ${status.action.type}`); // 'info' | 'upgrade' | 'enable_overage'
  console.log(`Suggestion: ${status.action.suggestion}`);
  console.log(`URL: ${status.action.url}`);
}

// Estimate before making a request
const estimate = await sdk.credits.estimate(
  50000,    // tokens (technical parameter for estimation)
  'haiku',  // model: 'haiku' | 'sonnet' | 'auto'
  'code_generation' // operation type
);

console.log(`Estimated WorkCoins: ${estimate.estimatedCredits}`);
console.log(`Confidence: ${estimate.confidence}`); // 'low' | 'medium' | 'high'
console.log(`Breakdown:`, estimate.breakdown);

// Get overage config
const config = await sdk.credits.getOverageConfig();
console.log(`Enabled: ${config.enabled}`);
console.log(`Limit: ${config.limitCredits} WorkCoins`);
console.log(`Price: ₽${config.pricePerCreditRub} per WorkCoin`);

// Enable/disable overage
await sdk.credits.toggleOverage(true);

// Update overage limit
await sdk.credits.updateOverageLimit(1000);

// Get overage stats for current month
const stats = await sdk.credits.getOverageStats();
console.log(`Total WorkCoins used: ${stats.totalCreditsUsed}`);
console.log(`Total cost: ₽${stats.totalCostRub}`);
console.log(`Usage count: ${stats.usageCount}`);
console.log(`Avg per operation: ${stats.avgCreditsPerOperation}`);

import { CodeSolverSDK, CreditsStatus } from 'solver-sdk';

try {
  // Check before making request
  const status = await sdk.credits.getStatus();
  if (!status.canMakeRequest) {
    console.error('No WorkCoins available');
    return;
  }

  // Make AI request
  await sdk.chat.chat([...]);
} catch (error) {
  if (error.response?.data?.error === 'credits_limit_exceeded') {
    console.error('WorkCoins exhausted. Please upgrade or enable overage.');
  } else if (error.response?.data?.error === 'overage_limit_exceeded') {
    console.error('Overage limit reached.');
  }
}

import {
  ChatMessage,
  ChatOptions,
  Project,
  ProjectState,
  SearchResult,
  UserProfile,
  LimitStatus,
  LimitExceededError,
  RateLimitError
} from 'solver-sdk';

const sdk = await CodeSolverSDK.create({
  debug: 'verbose',  // silent | error | warn | info | debug | verbose
  webSocket: { debug: true }
});

// ✅ Main indexing method
await sdk.deltaManager.syncEncryptedChunks(projectId, chunks, rootHash, {
  batchSize: 50,
  onProgress: (current, total) => console.log(`${current}/${total}`)
});

// Check sync status
const state = await sdk.projects.getProjectState(projectId, clientRootHash);
if (state.syncRequired) {
  // Needs sync
}

// Cancel ongoing sync
await sdk.deltaManager.cancelSync(projectId);

// Инвалидировать файл при изменении
const result = await sdk.deltaManager.invalidateFile(projectId, {
  filePath: 'src/app.tsx',
  reason: 'file_changed'
});

console.log(`Invalidated ${result.chunksInvalidated} chunks`);
console.log(`Cache invalidated: ${result.cacheInvalidated}`);

// Отправить новые chunks после инвалидации
await sdk.deltaManager.syncEncryptedChunks(projectId, newChunks, rootHash);

// Always check on project open
const recovery = await sdk.projects.getRecoveryStatus(projectId);
if (recovery.needsRecovery) {
  const { processedFiles, totalFiles, percentage } = recovery.progress;
  
  // Show dialog: "Continue (67%) — 480/642 files" or "Start Fresh"
  await sdk.projects.resumeSync(projectId);  // Continue
  // OR
  await sdk.projects.cancelRecovery(projectId);  // Start over
}

interface ProjectState {
  projectId: string;
  merkleRootHash: string | null;
  totalFiles: number;              // For UI display
  indexingStatus: 'pending' | 'in-progress' | 'complete' | 'failed';
  syncRequired?: boolean;          // Compare with client hash
}

interface SyncProgressEvent {
  projectId: string;
  progress: number;                // 0-100
  processedFiles: number;          // 450
  totalFiles: number;              // 722
  stage: 'receiving_chunks' | 'processing_chunks' | 'creating_embeddings' | 'finalizing';
}

interface RecoveryInfo {
  needsRecovery: boolean;
  progress: {
    processedFiles: number;
    totalFiles: number;
    percentage: number;            // 0-100
  };
  canResume: boolean;
}

interface CreditsStatus {
  status: 'ok' | 'warning' | 'critical' | 'depleted';
  balance: CreditsBalance;
  canMakeRequest: boolean;
  message: string;
  action?: CreditsAction;
}

interface CreditsBalance {
  creditsLimit: number;            // Monthly credits limit
  creditsUsed: number;             // Total credits used
  creditsRemaining: number;        // Credits remaining
  percentUsed: number;             // Usage percentage (0-100)
  
  bonusCredits?: number;           // Bonus credits available
  bonusCreditsUsed?: number;       // Bonus credits used
  bonusCreditsRemaining?: number;  // Bonus credits remaining
  
  overageEnabled: boolean;         // Is auto-renewal enabled
  overageCreditsUsed?: number;     // Auto-renewal credits used
  overageLimit?: number;           // Auto-renewal limit
  overageRemaining?: number;       // Auto-renewal credits remaining
  
  resetDate?: Date;                // Monthly reset date
}

interface CreditsAction {
  type: 'info' | 'upgrade' | 'enable_overage';
  suggestion: string;              // User-facing recommendation
  url: string;                     // Action URL (e.g. '/dashboard#billing')
  options?: string[];              // Available options ['enable_overage', 'upgrade']
}

const state = await sdk.projects.getProjectState(projectId);
console.log(state.totalFiles); // Should be > 0
// If 0: update backend to latest version

// 1. Check connection
console.log(sdk.isWebSocketConnected); // should be true

// 2. Verify subscription
sdk.projectSync.subscribeToProject(projectId);

// 3. Ensure OAuth token (production)
const sdk = await CodeSolverSDK.create({
  getAuthToken: () => authManager.getAccessToken()
});

// 4. Fallback to HTTP polling
const status = await sdk.projects.getIndexingStatus(projectId);

const recovery = await sdk.projects.getRecoveryStatus(projectId);
if (recovery.needsRecovery) {
  // Option 1: Resume
  await sdk.projects.resumeSync(projectId);
  
  // Option 2: Cancel and restart
  await sdk.projects.cancelRecovery(projectId);
}

getAllProjects(): Promise<Project[]>
getProjects(): Promise<Project[]>
getProject(projectId: string): Promise<Project>
createProject(name: string, data?: any, options?: ProjectOptions): Promise<Project>
findOrCreateProject(name: string): Promise<Project>
deleteProject(projectId: string): Promise<void>
getReadyProjects(): Promise<Project[]>
getProjectState(projectId: string, clientRootHash?: string): Promise<ProjectState>
getProjectStatus(projectId: string): Promise<any>
getIndexingStatus(projectId: string): Promise<any>
cancelIndexing(projectId: string): Promise<boolean>
clearIndexingError(projectId: string): Promise<boolean>
getRecoveryStatus(projectId: string): Promise<RecoveryInfo>
resumeSync(projectId: string, options?: any): Promise<any>
cancelRecovery(projectId: string): Promise<void>
initializeDeltaSync(projectId: string, params: any): Promise<any>
resetIndexing(projectId: string): Promise<any>
restartIndexing(projectId: string): Promise<any>
getFilePathMapping(projectId: string): Promise<any>

initSync(projectId: string, request: SyncInitRequest): Promise<any>
uploadChunkBatch(projectId: string, chunks: any[]): Promise<any>
uploadChunksWithRetry(projectId: string, chunks: any[], options?: any): Promise<any>
finalizeSync(projectId: string): Promise<SyncResult>
getSyncStatus(projectId: string): Promise<SyncStatus>
cancelSync(projectId: string): Promise<{ success: boolean; message?: string }>
cleanupFiles(projectId: string, activeFiles: string[]): Promise<any>

chat(messages: ChatMessage[], options?: ChatOptions): Promise<ChatResponse>
chatCompletion(messages: ChatMessage[], options?: ChatOptions): Promise<ChatResponse>
chatWithRegionFailover(messages: ChatMessage[], options?: ChatOptions): Promise<ChatResponse>
streamChat(messages: ChatMessage[], options?: ChatStreamOptions): AsyncGenerator<ChatStreamChunk>
streamPrompt(prompt: string, options?: ChatStreamOptions): AsyncGenerator<ChatStreamChunk>
sendContinuation(requestId: string, messages: ChatMessage[]): AsyncGenerator<ChatStreamChunk>
sendPromptWithRegionFailover(prompt: string, options?: ChatOptions): Promise<string>
checkAvailability(): Promise<boolean>
cancelRequest(requestId: string): Promise<void>
getStreamsStats(): Promise<any>
cleanupStaleStreams(timeoutMs?: number): Promise<any>
cancelUserStreams(reason?: string): Promise<number>

searchCode(projectIdOrParams: string | SearchCodeParams, params?: SearchCodeParams): Promise<SearchResult[]>
searchFunctions(projectIdOrParams: string | SearchFunctionsParams, params?: SearchFunctionsParams): Promise<FunctionSearchResult>
semanticSearch(projectId: string, params: SearchCodeParams): Promise<SearchResult[]>
getFunctionStats(projectId: string): Promise<{ stats: { totalFunctions: number } }>

getSchemas(): Promise<ToolsResponse>
findToolByName(name: string): Promise<ToolSchema | null>
getToolsStats(): Promise<{ total: number; categories: Record<string, number>; mostUsed?: string[] }>
validateToolSchema(tool: ToolSchema): boolean
createToolSchema(name: string, description: string, properties: any, required?: string[]): ToolSchema

getProfile(): Promise<UserProfile>
getLimitStatus(): Promise<LimitStatus>
checkAvailability(): Promise<boolean>

revokeToken(token: string): Promise<{ ok: boolean }>
logout(): Promise<{ ok: boolean }>

getAllModels(): Promise<any[]>
getModels(): Promise<any[]>
getAvailableModels(): Promise<any[]>
getProviderModels(providerId: string): Promise<ProviderModels>
getModelInfo(modelId: string): Promise<any>

checkForUpdates(options: UpdateCheckOptions): Promise<UpdateResponse>
getChangelog(version: string, locale: string): Promise<string>
sendStats(event: UpdateStatsEvent): Promise<void>
getLatestVersion(channel?: string): Promise<LatestVersionInfo>
checkAvailability(): Promise<boolean>

connectWebSocket(): Promise<void>
disconnectWebSocket(): void
isWebSocketConnected: boolean
projectSync.subscribeToProject(projectId: string): void
projectSync.unsubscribeFromProject(projectId: string): void
projectSync.on('sync-status-update', callback): void
projectSync.on('sync-progress', callback): void
projectSync.on('sync-completed', callback): void
projectSync.on('sync-error', callback): void
projectSync.off(event: string, callback): void

checkHealth(): Promise<boolean>
version: string
baseURL: string