Form Controls

/**
 * Bootstrap date picker directive for single date selection
 */
@Directive({
  selector: '[bsDatepicker]'
})
class BsDatepickerDirective implements OnInit, OnDestroy {
  /** Configuration options */
  @Input() bsConfig: Partial<BsDatepickerConfig>;
  /** Selected date value */
  @Input() bsValue: Date;
  /** Minimum selectable date */
  @Input() minDate: Date;
  /** Maximum selectable date */
  @Input() maxDate: Date;
  /** Custom CSS classes for specific dates */
  @Input() dateCustomClasses: DatepickerDateCustomClasses[];
  /** Days of week to disable (0-6, Sunday-Saturday) */
  @Input() daysDisabled: number[];
  /** Specific dates to disable */
  @Input() datesDisabled: Date[];
  /** Datepicker placement */
  @Input() placement: 'top' | 'bottom' | 'left' | 'right' = 'bottom';
  /** Event triggers */
  @Input() triggers: string = 'click';
  /** Container for datepicker */
  @Input() container: string = 'body';
  /** Disable the datepicker */
  @Input() isDisabled: boolean = false;

  /** Event emitted when datepicker is shown */
  @Output() onShown: EventEmitter<BsDatepickerDirective>;
  /** Event emitted when datepicker is hidden */
  @Output() onHidden: EventEmitter<BsDatepickerDirective>;
  /** Event emitted when date value changes */
  @Output() bsValueChange: EventEmitter<Date>;

  /** Show the datepicker */
  show(): void;
  /** Hide the datepicker */
  hide(): void;
  /** Toggle datepicker visibility */
  toggle(): void;
  /** Set date value */
  setConfig(): void;
}

/**
 * Inline datepicker directive (always visible)
 */
@Directive({
  selector: '[bsDatepickerInline]'
})
class BsDatepickerInlineDirective extends BsDatepickerDirective {}

/**
 * Date range picker directive for selecting date ranges
 */
@Directive({
  selector: '[bsDaterangepicker]'
})
class BsDaterangepickerDirective implements OnInit, OnDestroy {
  /** Configuration options */
  @Input() bsConfig: Partial<BsDaterangepickerConfig>;
  /** Selected date range */
  @Input() bsValue: Date[];
  /** Minimum selectable date */
  @Input() minDate: Date;
  /** Maximum selectable date */
  @Input() maxDate: Date;
  /** Custom CSS classes for specific dates */
  @Input() dateCustomClasses: DatepickerDateCustomClasses[];
  /** Days to disable */
  @Input() daysDisabled: number[];
  /** Specific dates to disable */
  @Input() datesDisabled: Date[];
  /** Placement relative to trigger */
  @Input() placement: 'top' | 'bottom' | 'left' | 'right' = 'bottom';
  /** Event triggers */
  @Input() triggers: string = 'click';
  /** Container for datepicker */
  @Input() container: string = 'body';
  /** Disable the datepicker */
  @Input() isDisabled: boolean = false;

  /** Event emitted when shown */
  @Output() onShown: EventEmitter<BsDaterangepickerDirective>;
  /** Event emitted when hidden */
  @Output() onHidden: EventEmitter<BsDaterangepickerDirective>;
  /** Event emitted when date range changes */
  @Output() bsValueChange: EventEmitter<Date[]>;
}

/**
 * Configuration interface for datepicker
 */
interface BsDatepickerConfig {
  /** Container CSS class */
  containerClass: string;
  /** Custom CSS class */
  customClass: string;
  /** Date input format */
  dateInputFormat: string;
  /** Use UTC dates */
  useUtc: boolean;
  /** Return focus to trigger after selection */
  returnFocusToInput: boolean;
  /** Show week numbers */
  showWeekNumbers: boolean;
  /** First day of week (0-6) */
  startingDayOfWeek: number;
  /** Adaptive position */
  adaptivePosition: boolean;
  /** Show today button */
  showTodayButton: boolean;
  /** Show clear button */
  showClearButton: boolean;
  /** Clear button label */
  clearButtonLabel: string;
  /** Today button label */
  todayButtonLabel: string;
  /** Clear position */
  clearPosition: string;
  /** Today position */
  todayPosition: string;
  /** Range separator for date ranges */
  rangeSeparator: string;
  /** Select week */
  selectWeek: boolean;
  /** Select from other month */
  selectFromOtherMonth: boolean;
  /** Display one month */
  displayOneMonthRange: boolean;
  /** Display months */
  displayMonths: number;
}

/**
 * Date custom classes interface
 */
interface DatepickerDateCustomClasses {
  /** Target date */
  date: Date;
  /** CSS classes to apply */
  classes: string[];
}

/**
 * View modes for datepicker
 */
type BsDatepickerViewMode = 'day' | 'month' | 'year';

/**
 * Localization service for datepicker
 */
@Injectable()
class BsLocaleService {
  /** Current locale */
  currentLocale: string;

  /** Use specified locale */
  use(locale: string): void;
  /** Get current locale data */
  getCurrentLocale(): string;
  /** Get locale data */
  getLocaleData(locale: string): any;
}

/**
 * Angular module for datepicker functionality
 */
@NgModule({
  declarations: [
    BsDatepickerDirective,
    BsDatepickerInlineDirective,
    BsDaterangepickerDirective,
    BsDaterangepickerInlineDirective,
    BsDatepickerInputDirective,
    BsDaterangepickerInputDirective
  ],
  exports: [
    BsDatepickerDirective,
    BsDatepickerInlineDirective,
    BsDaterangepickerDirective,
    BsDaterangepickerInlineDirective,
    BsDatepickerInputDirective,
    BsDaterangepickerInputDirective
  ],
  providers: [BsLocaleService]
})
class BsDatepickerModule {}

import { BsDatepickerModule, BsDatepickerConfig, BsLocaleService } from 'ngx-bootstrap/datepicker';
import { defineLocale } from 'ngx-bootstrap/chronos';
import { esLocale } from 'ngx-bootstrap/locale';

@Component({
  template: `
    <!-- Single date picker -->
    <input 
      type="text" 
      class="form-control" 
      bsDatepicker 
      [bsValue]="selectedDate"
      [bsConfig]="datePickerConfig"
      (bsValueChange)="onDateChange($event)"
      placeholder="Select date">

    <!-- Date range picker -->
    <input 
      type="text" 
      class="form-control" 
      bsDaterangepicker 
      [bsValue]="dateRange"
      [minDate]="minDate"
      [maxDate]="maxDate"
      (bsValueChange)="onRangeChange($event)"
      placeholder="Select date range">

    <!-- Inline datepicker -->
    <div 
      bsDatepickerInline 
      [bsValue]="selectedDate"
      (bsValueChange)="onDateChange($event)">
    </div>
  `,
  imports: [BsDatepickerModule]
})
export class MyComponent {
  selectedDate = new Date();
  dateRange: Date[] = [];
  minDate = new Date();
  maxDate = new Date();

  datePickerConfig: Partial<BsDatepickerConfig> = {
    showWeekNumbers: true,
    dateInputFormat: 'YYYY-MM-DD',
    containerClass: 'theme-dark-blue'
  };

  constructor(private localeService: BsLocaleService) {
    // Set locale
    defineLocale('es', esLocale);
    this.localeService.use('es');
    
    // Set date constraints
    this.maxDate.setDate(this.maxDate.getDate() + 7);
  }

  onDateChange(date: Date) {
    this.selectedDate = date;
  }

  onRangeChange(range: Date[]) {
    this.dateRange = range;
  }
}

/**
 * Time selection component
 */
@Component({
  selector: 'timepicker'
})
class TimepickerComponent implements ControlValueAccessor, OnInit {
  /** Hours step interval */
  @Input() hourStep: number = 1;
  /** Minutes step interval */
  @Input() minuteStep: number = 5;
  /** Seconds step interval */
  @Input() secondsStep: number = 10;
  /** Make inputs readonly */
  @Input() readonlyInput: boolean = false;
  /** Disable the component */
  @Input() disabled: boolean = false;
  /** Enable mousewheel support */
  @Input() mousewheel: boolean = true;
  /** Enable arrow key support */
  @Input() arrowkeys: boolean = true;
  /** Show spinner buttons */
  @Input() showSpinners: boolean = true;
  /** Show seconds input */
  @Input() showSeconds: boolean = false;
  /** Show minutes input */
  @Input() showMinutes: boolean = true;
  /** Show AM/PM selector */
  @Input() showMeridian: boolean = true;
  /** AM/PM labels */
  @Input() meridians: string[] = ['AM', 'PM'];
  /** Minimum time */
  @Input() min: Date;
  /** Maximum time */
  @Input() max: Date;
  /** Placeholder for hours */
  @Input() hoursPlaceholder: string = 'HH';
  /** Placeholder for minutes */
  @Input() minutesPlaceholder: string = 'MM';
  /** Placeholder for seconds */
  @Input() secondsPlaceholder: string = 'SS';
  /** Allow empty time values */
  @Input() allowEmptyTime: boolean = false;

  /** Increment hours */
  incrementHours(): void;
  /** Decrement hours */
  decrementHours(): void;
  /** Increment minutes */
  incrementMinutes(): void;
  /** Decrement minutes */
  decrementMinutes(): void;
  /** Increment seconds */
  incrementSeconds(): void;
  /** Decrement seconds */
  decrementSeconds(): void;
  /** Toggle meridian (AM/PM) */
  toggleMeridian(): void;
}

/**
 * Global configuration for timepicker
 */
@Injectable()
class TimepickerConfig {
  /** Default hours step */
  hourStep: number = 1;
  /** Default minutes step */
  minuteStep: number = 5;
  /** Default seconds step */
  secondsStep: number = 10;
  /** Default meridian display */
  showMeridian: boolean = true;
  /** Default meridian labels */
  meridians: string[] = ['AM', 'PM'];
  /** Default readonly state */
  readonlyInput: boolean = false;
  /** Default disabled state */
  disabled: boolean = false;
  /** Default mousewheel support */
  mousewheel: boolean = true;
  /** Default arrow key support */
  arrowkeys: boolean = true;
  /** Default spinner display */
  showSpinners: boolean = true;
  /** Default seconds display */
  showSeconds: boolean = false;
  /** Default minutes display */
  showMinutes: boolean = true;
  /** Default empty time handling */
  allowEmptyTime: boolean = false;
  /** Default minimum time */
  min?: Date;
  /** Default maximum time */
  max?: Date;
  /** Default hours placeholder */
  hoursPlaceholder: string = 'HH';
  /** Default minutes placeholder */
  minutesPlaceholder: string = 'MM';
  /** Default seconds placeholder */
  secondsPlaceholder: string = 'SS';
  /** Default hours aria label */
  ariaLabelHours: string = 'hours';
  /** Default minutes aria label */
  ariaLabelMinutes: string = 'minutes';
  /** Default seconds aria label */
  ariaLabelSeconds: string = 'seconds';
}

/**
 * Angular module for timepicker functionality
 */
@NgModule({
  declarations: [TimepickerComponent],
  exports: [TimepickerComponent]
})
class TimepickerModule {}

import { TimepickerModule, TimepickerConfig } from 'ngx-bootstrap/timepicker';

@Component({
  template: `
    <timepicker 
      [(ngModel)]="selectedTime"
      [hourStep]="1"
      [minuteStep]="15"
      [showMeridian]="true"
      [showSeconds]="false"
      [readonlyInput]="false"
      [disabled]="isDisabled">
    </timepicker>

    <timepicker 
      [(ngModel)]="time24"
      [showMeridian]="false"
      [showSeconds]="true"
      [min]="minTime"
      [max]="maxTime">
    </timepicker>
  `,
  imports: [TimepickerModule]
})
export class MyComponent {
  selectedTime = new Date();
  time24 = new Date();
  isDisabled = false;
  minTime = new Date();
  maxTime = new Date();

  constructor(timepickerConfig: TimepickerConfig) {
    // Global configuration
    timepickerConfig.showMeridian = false;
    timepickerConfig.showSeconds = true;
    
    // Set time constraints
    this.minTime.setHours(9, 0, 0);
    this.maxTime.setHours(17, 30, 0);
  }
}

/**
 * Typeahead directive for auto-complete functionality
 */
@Directive({
  selector: '[typeahead]'
})
class TypeaheadDirective implements OnInit, OnDestroy {
  /** Data source for suggestions */
  @Input() typeahead: any;
  /** Minimum characters to trigger search */
  @Input() typeaheadMinLength: number = 1;
  /** Wait time before triggering search */
  @Input() typeaheadWaitMs: number = 0;
  /** Maximum number of options to display */
  @Input() typeaheadOptionsLimit: number = 20;
  /** Custom option template */
  @Input() typeaheadOptionField: string;
  /** Async loading indicator */
  @Input() typeaheadAsync: boolean;
  /** Latinize characters for matching */
  @Input() typeaheadLatinize: boolean = true;
  /** Single words matching */
  @Input() typeaheadSingleWords: boolean = true;
  /** Word delimiters */
  @Input() typeaheadWordDelimiters: string = ' ';
  /** Phrase delimiters */
  @Input() typeaheadPhraseDelimiters: string = '\'"';
  /** Loading text */
  @Input() typeaheadLoadingText: string = 'Loading...';
  /** No results text */
  @Input() typeaheadNoResultsText: string = 'No Results Found';
  /** Hide results on blur */
  @Input() typeaheadHideResultsOnBlur: boolean = true;
  /** Cancel request on focus lost */
  @Input() typeaheadCancelRequestOnFocusLost: boolean = false;
  /** Select first item */
  @Input() typeaheadSelectFirstItem: boolean = true;
  /** Scroll to active option */
  @Input() typeaheadScrollable: boolean = false;
  /** Scroll height */
  @Input() typeaheadOptionsInScrollableView: number = 5;
  /** Container for dropdown */
  @Input() container: string;
  /** Dropdown up */
  @Input() dropup: boolean = false;

  /** Event emitted when loading starts */
  @Output() typeaheadLoading: EventEmitter<boolean> = new EventEmitter();
  /** Event emitted when no results found */
  @Output() typeaheadNoResults: EventEmitter<boolean> = new EventEmitter();
  /** Event emitted when option is selected */
  @Output() typeaheadOnSelect: EventEmitter<TypeaheadMatch> = new EventEmitter();
  /** Event emitted when preview changes */
  @Output() typeaheadOnPreview: EventEmitter<TypeaheadMatch> = new EventEmitter();
  /** Event emitted when blur occurs */
  @Output() typeaheadOnBlur: EventEmitter<any> = new EventEmitter();

  /** Change active option */
  changeModel(match: TypeaheadMatch): void;
  /** Get active option */
  getActive(): TypeaheadMatch;
  /** Select active option */
  selectActiveMatch(): void;
  /** Select match */
  selectMatch(value: TypeaheadMatch): void;
  /** Show matches */
  show(): void;
  /** Hide matches */
  hide(): void;
}

/**
 * Typeahead match result
 */
class TypeaheadMatch {
  constructor(
    public item: any,
    public value?: string,
    public header?: boolean
  ) {}

  /** Check if option is header */
  isHeader(): boolean;
  /** String representation */
  toString(): string;
}

/**
 * Typeahead configuration options
 */
class TypeaheadOptions {
  /** Placement of dropdown */
  placement: string;
  /** Animation enabled */
  animation: boolean;
  /** Typeahead container */
  typeaheadRef: any;
}

/**
 * Global configuration for typeahead
 */
@Injectable()
class TypeaheadConfig {
  /** Default hide results on blur */
  hideResultsOnBlur: boolean = true;
  /** Default cancel request on focus lost */
  cancelRequestOnFocusLost: boolean = false;
  /** Default select first item */
  selectFirstItem: boolean = true;
  /** Default minimum length */
  minLength: number = 1;
  /** Default wait time */
  waitMs: number = 0;
}

/**
 * Utility functions for typeahead
 */
interface TypeaheadUtils {
  /** Escape regex special characters */
  escapeRegexp(text: string): string;
  /** Get value from nested object property */
  getValueFromObject(object: any, path: string): string;
  /** Tokenize text for matching */
  tokenize(text: string, wordRegexDelimiters?: string, phraseRegexDelimiters?: string): string[];
  /** Convert text to latin characters */
  latinize(text: string): string;
}

/** Character mapping for latinization */
declare const latinMap: { [key: string]: string };

/**
 * Template context interfaces
 */
interface TypeaheadOptionItemContext {
  /** Match object */
  $implicit: TypeaheadMatch;
  /** Match index */
  index: number;
}

interface TypeaheadOptionListContext {
  /** All matches */
  $implicit: TypeaheadMatch[];
  /** Query string */
  query: string;
}

/**
 * Angular module for typeahead functionality
 */
@NgModule({
  declarations: [
    TypeaheadDirective,
    TypeaheadContainerComponent
  ],
  exports: [TypeaheadDirective]
})
class TypeaheadModule {}

import { TypeaheadModule } from 'ngx-bootstrap/typeahead';
import { Observable, of } from 'rxjs';
import { map, mergeMap } from 'rxjs/operators';

@Component({
  template: `
    <!-- Static data source -->
    <input 
      type="text" 
      class="form-control"
      [(ngModel)]="selectedState"
      [typeahead]="states"
      placeholder="Type to search states">

    <!-- Async data source -->
    <input 
      type="text" 
      class="form-control"
      [(ngModel)]="selectedUser"
      [typeahead]="asyncUsers"
      typeaheadOptionField="name"
      [typeaheadMinLength]="2"
      [typeaheadWaitMs]="300"
      (typeaheadOnSelect)="onUserSelect($event)"
      placeholder="Search users">

    <!-- Custom template -->
    <input 
      type="text" 
      class="form-control"
      [(ngModel)]="selectedProduct"
      [typeahead]="products"
      typeaheadOptionField="name"
      [typeaheadItemTemplate]="customTemplate"
      placeholder="Search products">

    <ng-template #customTemplate let-model="item" let-index="index">
      <div>
        <strong>{{model.name}}</strong> - ${{model.price}}
      </div>
    </ng-template>
  `,
  imports: [TypeaheadModule]
})
export class MyComponent {
  selectedState: string;
  selectedUser: string;
  selectedProduct: string;

  states = ['Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California'];
  
  products = [
    { name: 'Laptop', price: 999 },
    { name: 'Mouse', price: 25 },
    { name: 'Keyboard', price: 75 }
  ];

  asyncUsers = new Observable((observer: any) => {
    // Simulate API call
    observer.next([
      { id: 1, name: 'John Doe', email: 'john@example.com' },
      { id: 2, name: 'Jane Smith', email: 'jane@example.com' }
    ]);
  });

  onUserSelect(event: any) {
    console.log('Selected user:', event.item);
  }
}

/**
 * Star rating component
 */
@Component({
  selector: 'rating'
})
class RatingComponent implements ControlValueAccessor, OnInit {
  /** Maximum rating value */
  @Input() max: number = 5;
  /** Current rating value */
  @Input() rate: number = 0;
  /** Read-only mode */
  @Input() readonly: boolean = false;
  /** Custom titles for rating values */
  @Input() titles: string[] = [];
  /** Enable/disable rating */
  @Input() disabled: boolean = false;
  /** Custom template for rating display */
  @Input() customTemplate: TemplateRef<any>;

  /** Event emitted when rating changes */
  @Output() onHover: EventEmitter<number> = new EventEmitter();
  /** Event emitted when mouse leaves */
  @Output() onLeave: EventEmitter<number> = new EventEmitter();

  /** Rating range array */
  range: number[] = [];
  /** Current hover value */
  preValue: number;

  /** Enter rating item */
  enter(value: number): void;
  /** Reset to original value */
  reset(): void;
  /** Select rating value */
  rate(value: number): void;
}

/**
 * Global configuration for rating
 */
@Injectable()
class RatingConfig {
  /** Default maximum rating */
  max: number = 5;
  /** Default readonly state */
  readonly: boolean = false;
  /** Default disabled state */
  disabled: boolean = false;
}

/**
 * Angular module for rating functionality
 */
@NgModule({
  declarations: [RatingComponent],
  exports: [RatingComponent]
})
class RatingModule {}

import { RatingModule } from 'ngx-bootstrap/rating';

@Component({
  template: `
    <!-- Basic rating -->
    <rating 
      [(ngModel)]="currentRate" 
      [max]="maxRating"
      [readonly]="false"
      (onHover)="onRatingHover($event)"
      (onLeave)="onRatingLeave($event)">
    </rating>

    <!-- Custom titles -->
    <rating 
      [(ngModel)]="productRating" 
      [titles]="ratingTitles"
      [disabled]="isDisabled">
    </rating>

    <!-- Readonly display -->
    <rating 
      [ngModel]="averageRating" 
      [readonly]="true"
      [max]="5">
    </rating>
  `,
  imports: [RatingModule]
})
export class MyComponent {
  currentRate = 3;
  maxRating = 10;
  productRating = 4;
  averageRating = 4.5;
  isDisabled = false;

  ratingTitles = ['Poor', 'Fair', 'Good', 'Very Good', 'Excellent'];

  onRatingHover(rating: number) {
    console.log('Hovering over rating:', rating);
  }

  onRatingLeave(rating: number) {
    console.log('Left rating:', rating);
  }
}

/**
 * Directive for checkbox-like button behavior
 */
@Directive({
  selector: '[btnCheckbox]'
})
class ButtonCheckboxDirective implements ControlValueAccessor, OnInit {
  /** Button active state */
  @Input() btnCheckbox: boolean;
  /** Uncheckable button */
  @Input() uncheckable: boolean = true;
  /** True value for checkbox */
  @Input() trueValue: any = true;
  /** False value for checkbox */
  @Input() falseValue: any = false;

  /** Toggle button state */
  toggle(): void;
}

/**
 * Directive for radio button behavior
 */
@Directive({
  selector: '[btnRadio]'
})
class ButtonRadioDirective implements ControlValueAccessor, OnInit {
  /** Radio button value */
  @Input() btnRadio: any;
  /** Uncheckable radio */
  @Input() uncheckable: boolean = false;
  /** Radio group value */
  @Input() value: any;

  /** Set button state */
  onClick(): void;
}

/**
 * Group directive for radio buttons
 */
@Directive({
  selector: '[btnRadioGroup]'
})
class ButtonRadioGroupDirective implements ControlValueAccessor {
  /** Radio group value */
  value: any;

  /** Write value */
  writeValue(value: any): void;
}

/**
 * Angular module for button controls
 */
@NgModule({
  declarations: [
    ButtonCheckboxDirective,
    ButtonRadioDirective,
    ButtonRadioGroupDirective
  ],
  exports: [
    ButtonCheckboxDirective,
    ButtonRadioDirective,
    ButtonRadioGroupDirective
  ]
})
class ButtonsModule {}

import { ButtonsModule } from 'ngx-bootstrap/buttons';

@Component({
  template: `
    <!-- Checkbox buttons -->
    <div class="btn-group" role="group">
      <button 
        type="button" 
        class="btn btn-primary"
        [(ngModel)]="checkboxModel.left"
        btnCheckbox>
        Left
      </button>
      <button 
        type="button" 
        class="btn btn-primary"
        [(ngModel)]="checkboxModel.right"
        btnCheckbox>
        Right
      </button>
    </div>

    <!-- Radio buttons -->
    <div class="btn-group" role="group" [(ngModel)]="radioModel" btnRadioGroup>
      <button 
        type="button" 
        class="btn btn-success"
        btnRadio="Left">
        Left
      </button>
      <button 
        type="button" 
        class="btn btn-success"
        btnRadio="Middle">
        Middle
      </button>
      <button 
        type="button" 
        class="btn btn-success"
        btnRadio="Right">
        Right
      </button>
    </div>
  `,
  imports: [ButtonsModule]
})
export class MyComponent {
  checkboxModel = { left: false, right: false };
  radioModel = 'Middle';
}