export interface ConnectionConfig {
  id: string;
  name: string;
  host: string;
  port: number;
  user: string;
  password: string;
  database: string;
  ssl_mode?: string;
  color?: string;
}

export interface QueryResult {
  columns: string[];
  types: string[];
  rows: unknown[][];
  row_count: number;
  execution_time_ms: number;
}

export interface PaginatedQueryResult extends QueryResult {
  total_rows: number;
  page: number;
  page_size: number;
}

export interface SchemaObject {
  name: string;
  object_type: string;
  schema: string;
}

export interface ColumnInfo {
  name: string;
  data_type: string;
  is_nullable: boolean;
  column_default: string | null;
  ordinal_position: number;
  character_maximum_length: number | null;
  is_primary_key: boolean;
}

export interface ConstraintInfo {
  name: string;
  constraint_type: string;
  columns: string[];
}

export interface IndexInfo {
  name: string;
  definition: string;
  is_unique: boolean;
  is_primary: boolean;
}

export interface HistoryEntry {
  id: string;
  connection_id: string;
  connection_name: string;
  database: string;
  sql: string;
  status: string;
  error_message?: string;
  row_count?: number;
  execution_time_ms: number;
  executed_at: string;
}

export interface ExplainNode {
  "Node Type": string;
  "Relation Name"?: string;
  "Schema"?: string;
  "Alias"?: string;
  "Startup Cost": number;
  "Total Cost": number;
  "Plan Rows": number;
  "Plan Width": number;
  "Actual Startup Time"?: number;
  "Actual Total Time"?: number;
  "Actual Rows"?: number;
  "Actual Loops"?: number;
  "Shared Hit Blocks"?: number;
  "Shared Read Blocks"?: number;
  "Filter"?: string;
  "Join Type"?: string;
  "Index Name"?: string;
  "Index Cond"?: string;
  "Hash Cond"?: string;
  "Sort Key"?: string[];
  Plans?: ExplainNode[];
  [key: string]: unknown;
}

export interface ExplainResult {
  Plan: ExplainNode;
  "Planning Time": number;
  "Execution Time": number;
}

export type TabType = "query" | "table" | "structure";

export interface Tab {
  id: string;
  type: TabType;
  title: string;
  connectionId: string;
  schema?: string;
  table?: string;
  sql?: string;
}