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import { spread } from '@open-wc/lit-helpers';
import {
FieldConfig,
TextFieldConfig,
TextareaFieldConfig,
SelectFieldConfig,
CheckboxFieldConfig,
MessageEditorFieldConfig,
KeyValueFieldConfig,
ArrayFieldConfig,
MediaFieldConfig,
TemplateEditorFieldConfig
} from '../flow/types';
import { Attachment } from '../interfaces';
import { DEFAULT_MEDIA_ENDPOINT } from '../utils';
/**
* FieldRenderer provides a consistent way to render field configurations
* into web components across different contexts (NodeEditor, ArrayEditor, etc.)
*/
export class FieldRenderer {
/**
* Renders a field based on its configuration
* @param fieldName - The name of the field
* @param config - The field configuration
* @param value - The current value of the field
* @param context - Additional context for rendering
* @returns A TemplateResult for the rendered field
*/
static renderField(
fieldName: string,
config: FieldConfig,
value: any,
context: FieldRenderContext = {}
): TemplateResult {
/*const {
errors = [],
onChange,
showLabel = true,
flavor,
extraClasses = '',
style = ''
} = context;*/
switch (config.type) {
case 'text':
return FieldRenderer.renderTextInput(fieldName, config, value, context);
case 'textarea':
return FieldRenderer.renderTextarea(
fieldName,
config as TextareaFieldConfig,
value,
context
);
case 'select':
return FieldRenderer.renderSelect(
fieldName,
config as SelectFieldConfig,
value,
context
);
case 'checkbox':
return FieldRenderer.renderCheckbox(
fieldName,
config as CheckboxFieldConfig,
value,
context
);
case 'key-value':
return FieldRenderer.renderKeyValue(
fieldName,
config as KeyValueFieldConfig,
value,
context
);
case 'array':
return FieldRenderer.renderArray(
fieldName,
config as ArrayFieldConfig,
value,
context
);
case 'message-editor':
return FieldRenderer.renderMessageEditor(
fieldName,
config as MessageEditorFieldConfig,
value,
context
);
case 'media':
return FieldRenderer.renderMedia(
fieldName,
config as MediaFieldConfig,
value,
context
);
case 'template-editor':
return FieldRenderer.renderTemplateEditor(
fieldName,
config as TemplateEditorFieldConfig,
value,
context
);
default:
return html`<div>Unsupported field type: ${(config as any).type}</div>`;
}
}
private static renderTextInput(
fieldName: string,
config: TextFieldConfig,
value: any,
context: FieldRenderContext
): TemplateResult {
const {
errors = [],
onChange,
showLabel = true,
extraClasses,
style
} = context;
// Resolve placeholder (supports static string or dynamic function)
const placeholder =
typeof config.placeholder === 'function'
? config.placeholder(context.formData || {})
: config.placeholder || '';
// If field supports expression evaluation, use temba-completion
if (config.evaluated) {
return html`<temba-rich-edit
name="${fieldName}"
label="${showLabel ? config.label : ''}"
?required="${config.required}"
.errors="${errors}"
.value="${value || ''}"
placeholder="${placeholder}"
session
flavor="${config.flavor || 'default'}"
.helpText="${config.helpText || ''}"
class="${extraClasses}"
style="${style}"
@change="${onChange || (() => {})}"
></temba-rich-edit>`;
}
return html`<temba-textinput
name="${fieldName}"
label="${showLabel ? config.label : ''}"
?required="${config.required}"
.errors="${errors}"
.value="${value || ''}"
placeholder="${placeholder}"
.helpText="${config.helpText || ''}"
flavor="${config.flavor || 'default'}"
class="${extraClasses}"
style="${style}"
@input="${onChange || (() => {})}"
></temba-textinput>`;
}
private static renderTextarea(
fieldName: string,
config: TextareaFieldConfig,
value: any,
context: FieldRenderContext
): TemplateResult {
const {
errors = [],
onChange,
showLabel = true,
extraClasses,
style
} = context;
const minHeightStyle = config.minHeight
? `--textarea-min-height: ${config.minHeight}px;`
: '';
const combinedStyle = `${minHeightStyle}${style}`;
// If field supports expression evaluation, use temba-rich-edit
if (config.evaluated) {
return html`<temba-rich-edit
name="${fieldName}"
label="${showLabel ? config.label : ''}"
?required="${config.required}"
.errors="${errors}"
.value="${value || ''}"
placeholder="${config.placeholder || ''}"
textarea
session
.helpText="${config.helpText || ''}"
class="${extraClasses}"
style="${combinedStyle}"
@change="${onChange || (() => {})}"
></temba-rich-edit>`;
}
return html`<temba-textinput
name="${fieldName}"
label="${showLabel ? config.label : ''}"
?required="${config.required}"
.errors="${errors}"
.value="${value || ''}"
placeholder="${config.placeholder || ''}"
textarea
.rows="${config.rows || 3}"
.helpText="${config.helpText || ''}"
class="${extraClasses}"
style="${combinedStyle}"
@input="${onChange || (() => {})}"
></temba-textinput>`;
}
private static renderSelect(
fieldName: string,
config: SelectFieldConfig,
value: any,
context: FieldRenderContext
): TemplateResult {
const {
errors = [],
onChange,
showLabel = true,
flavor,
extraClasses,
style
} = context;
// Get options - use dynamic options if available, otherwise use static options
const optionsToRender = config.getDynamicOptions
? config.getDynamicOptions()
: config.options;
return html`<temba-select
name="${fieldName}"
label="${showLabel ? config.label : ''}"
?required="${config.required}"
.errors="${errors}"
.values=${value}
?multi="${config.multi}"
?searchable="${config.searchable}"
?tags="${config.tags}"
?emails="${config.emails}"
expressions="${config.expressions || ''}"
?clearable="${config.clearable || false}"
placeholder="${config.placeholder || ''}"
maxItems="${config.maxItems || 0}"
valueKey="${config.valueKey || 'value'}"
nameKey="${config.nameKey || 'name'}"
endpoint="${config.endpoint || ''}"
queryParam="${config.queryParam || ''}"
.helpText="${config.helpText || ''}"
flavor="${flavor || config.flavor || 'small'}"
class="${extraClasses}"
style="${style}"
.getName=${config.getName}
.shouldExclude=${config.shouldExclude}
.createArbitraryOption=${config.createArbitraryOption}
?allowCreate="${config.allowCreate || false}"
@change="${onChange || (() => {})}"
>
${optionsToRender?.map((option: any) => {
if (typeof option === 'string') {
return html`<temba-option
name="${option}"
value="${option}"
></temba-option>`;
} else {
return html`<temba-option ${spread(option)}></temba-option>`;
}
})}
</temba-select>`;
}
private static renderCheckbox(
fieldName: string,
config: CheckboxFieldConfig,
value: any,
context: FieldRenderContext
): TemplateResult {
const {
errors = [],
onChange,
extraClasses,
style,
formData = {}
} = context;
// Handle dynamic labels
const label =
typeof config.label === 'function'
? config.label(formData)
: config.label;
const helpText =
typeof config.helpText === 'function'
? config.helpText(formData)
: config.helpText;
// Build custom style including labelPadding
const customStyle = config.labelPadding
? `--checkbox-padding: ${config.labelPadding}; ${style || ''}`
: style || '';
return html`<div class="form-field">
<temba-checkbox
name="${fieldName}"
label="${label}"
.helpText="${helpText || ''}"
?required="${config.required}"
.errors="${errors}"
?checked="${value || false}"
size="${config.size || 1.2}"
animateChange="${config.animateChange || 'pulse'}"
class="${extraClasses}"
style="${customStyle}"
@change="${onChange || (() => {})}"
></temba-checkbox>
${errors.length
? html`<div class="field-errors">${errors.join(', ')}</div>`
: ''}
</div>`;
}
private static renderKeyValue(
fieldName: string,
config: KeyValueFieldConfig,
value: any,
context: FieldRenderContext
): TemplateResult {
const {
errors = [],
onChange,
showLabel = true,
extraClasses,
style
} = context;
return html`<div class="form-field">
${showLabel ? html`<label>${config.label}</label>` : ''}
<temba-key-value-editor
name="${fieldName}"
.value="${value || []}"
.sortable="${config.sortable}"
.keyPlaceholder="${config.keyPlaceholder || 'Key'}"
.valuePlaceholder="${config.valuePlaceholder || 'Value'}"
.minRows="${config.minRows || 0}"
?readOnlyKeys="${config.readOnlyKeys}"
class="${extraClasses}"
style="${style}"
@change="${onChange || (() => {})}"
></temba-key-value-editor>
${errors.length
? html`<div class="field-errors">${errors.join(', ')}</div>`
: ''}
</div>`;
}
private static renderArray(
fieldName: string,
config: ArrayFieldConfig,
value: any,
context: FieldRenderContext
): TemplateResult {
const {
errors = [],
onChange,
showLabel = true,
extraClasses,
style
} = context;
return html`<div class="form-field">
${config.helpText
? html`<div style="color: #666; font-size: 13px; margin-bottom: 14px;">
${config.helpText}
</div>`
: ''}
<temba-array-editor
name="${fieldName}"
.label="${showLabel ? config.label : ''}"
.value="${value || []}"
.itemConfig="${config.itemConfig}"
.sortable="${config.sortable}"
.itemLabel="${config.itemLabel || 'Item'}"
.minItems="${config.minItems || 0}"
.maxItems="${config.maxItems || 0}"
?maintainEmptyItem="${config.maintainEmptyItem !== false}"
.onItemChange="${config.onItemChange}"
.isEmptyItemFn="${config.isEmptyItem}"
.createEmptyItemFn="${config.createEmptyItem}"
class="${extraClasses}"
style="${style}"
@change="${onChange || (() => {})}"
></temba-array-editor>
${errors.length
? html`<div class="field-errors">${errors.join(', ')}</div>`
: ''}
</div>`;
}
private static urlToAttachments(url: string): Attachment[] {
if (!url || !url.trim()) return [];
const filename = url.split('/').pop() || 'recording';
const ext = filename.split('.').pop()?.toLowerCase() || '';
const contentTypes: Record<string, string> = {
mp3: 'audio/mpeg',
wav: 'audio/wav',
ogg: 'audio/ogg',
m4a: 'audio/mp4'
};
return [
{
uuid: '',
content_type: contentTypes[ext] || 'audio/mpeg',
url,
filename,
size: 0,
error: ''
}
];
}
private static renderMedia(
fieldName: string,
config: MediaFieldConfig,
value: any,
context: FieldRenderContext
): TemplateResult {
const { onChange, showLabel = true } = context;
const endpoint = config.endpoint || DEFAULT_MEDIA_ENDPOINT;
const attachments = FieldRenderer.urlToAttachments(value);
return html`
<div>
${showLabel && config.label
? html`<label
style="margin-bottom: 5px; margin-left: 4px; display: block; font-weight: 400; font-size: var(--label-size); letter-spacing: 0.05em; line-height: normal; color: var(--color-label, #777);"
>${config.label}</label
>`
: ''}
<temba-media-picker
name="${fieldName}"
accept="${config.accept || ''}"
endpoint="${endpoint}"
max="1"
.attachments="${attachments}"
@change="${onChange || (() => {})}"
></temba-media-picker>
</div>
`;
}
private static renderMessageEditor(
fieldName: string,
config: MessageEditorFieldConfig,
value: any,
context: FieldRenderContext
): TemplateResult {
const {
errors = [],
onChange,
showLabel = true,
extraClasses,
style,
additionalData = {}
} = context;
return html`<temba-message-editor
name="${fieldName}"
label="${showLabel ? config.label : ''}"
?required="${config.required}"
.errors="${errors}"
.value="${value || ''}"
.attachments="${additionalData.attachments || []}"
placeholder="${config.placeholder || ''}"
.helpText="${config.helpText || ''}"
?autogrow="${config.autogrow}"
?gsm="${config.gsm}"
?disableCompletion="${config.disableCompletion}"
session
counter="${config.counter || ''}"
accept="${config.accept || ''}"
endpoint="${config.endpoint || ''}"
max-attachments="${config.maxAttachments || 3}"
minHeight="${config.minHeight || 92}"
class="${extraClasses}"
style="${style}"
@change="${onChange || (() => {})}"
></temba-message-editor>`;
}
private static renderTemplateEditor(
_fieldName: string,
config: TemplateEditorFieldConfig,
value: any,
context: FieldRenderContext
): TemplateResult {
const { onChange, additionalData = {} } = context;
const templateUuid = value?.uuid || '';
const variables = JSON.stringify(additionalData.template_variables || []);
return html`<temba-template-editor
url="${config.endpoint || '/api/internal/templates.json'}"
template="${templateUuid}"
variables="${variables}"
session
@temba-context-changed="${onChange || (() => {})}"
@temba-content-changed="${onChange || (() => {})}"
></temba-template-editor>`;
}
}
export interface FieldRenderContext {
/** Array of error messages for the field */
errors?: string[];
/** Change event handler */
onChange?: (event: Event) => void;
/** Whether to show the field label */
showLabel?: boolean;
/** Flavor for components that support it (like temba-select) */
flavor?: string;
/** Additional CSS classes to apply */
extraClasses?: string;
/** Additional CSS styles to apply */
style?: string;
/** Additional data needed for specific field types */
additionalData?: Record<string, any>;
/** Form data for dynamic field configurations */
formData?: Record<string, any>;
}
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