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import { TemplateResult, html, css, LitElement, PropertyValues } from 'lit';
import { CustomEventType } from '../interfaces';
import { MediaPicker } from './MediaPicker';
import { getClasses } from '../utils';
import { FieldElement } from './FieldElement';
interface Component {
name: string;
type: string;
content: string;
variables: { [key: string]: number };
}
interface Translation {
locale: string;
status: string;
channel: { uuid: string; name: string };
components: Component[];
variables: { type: string }[];
}
interface Template {
created_on: string;
modified_on: string;
name: string;
uuid: string;
base_translation: Translation;
}
export class TemplateEditor extends FieldElement {
static shadowRootOptions = {
...LitElement.shadowRootOptions,
delegatesFocus: true
};
static get styles() {
return css`
.component {
background: #fff;
border: 1px solid var(--color-widget-border);
border-radius: var(--curvature);
padding: 1em;
margin-top: 1em;
}
.content {
}
.picker {
margin-bottom: 0.5em;
display: block;
}
.param {
display: flex;
margin-bottom: 0.5em;
align-items: center;
}
label {
margin-right: 0.5em;
}
.content span {
margin-right: 0.25em;
}
.error-message {
padding-left: 0.5em;
padding-bottom: 1em;
}
.variable {
display: inline-block;
margin: 0.25em 0em;
margin-right: 0.25em;
}
.button-wrapper {
background: #f9f9f9;
border-radius: var(--curvature);
padding: 0.5em;
display: flex;
flex-direction: column;
}
.button-header {
font-weight: normal;
margin-left: 0.25em;
margin-bottom: -0.5em;
font-size: 0.9em;
color: #777;
}
.buttons {
display: flex;
align-items: center;
flex-wrap: wrap;
margin-bottom: 1em;
}
.button {
background: #fff;
padding: 0.3em 1em;
border: 1px solid #e6e6e6;
border-radius: var(--curvature);
min-height: 23px;
display: flex;
flex-direction: row;
align-items: center;
margin-right: 0.5em;
margin-top: 0.5em;
align-items: center;
}
.button .content {
margin-bottom: 0;
}
.button .display {
margin-right: 0.5em;
background: #f9f9f9;
padding: 0.25em 1em;
border-radius: var(--curvature);
}
.variable {
--temba-textinput-padding: 5px 5px;
--temba-textinput-font-size: 0.9em;
line-height: initial;
}
.template {
background: #fff;
border-radius: var(--curvature);
border: 1px solid var(--color-widget-border);
padding: 1em;
line-height: 2.2em;
max-height: 50vh;
overflow-y: auto;
overflow-x: hidden;
padding-bottom: 0;
}
.label {
font-size: 0.9em;
color: #777;
margin-left: 0.25em;
}
`;
}
@property({ type: String })
url: string;
// initial template uuid
@property({ type: String })
template: string;
@property({ type: Object })
selectedTemplate: Template;
// initial variables, not reflected back
@property({ type: Array })
variables: string[];
@property({ type: Array })
currentVariables: string[];
@property({ type: Object, attribute: false })
translation: Translation;
@property({ type: Boolean })
translating: boolean;
@property({ type: Boolean })
session = false;
@property({ type: String, attribute: 'template-warning' })
templateWarning: string;
pickersLoading: { [key: number]: boolean } = {};
textInputAttachments: { [index: number]: boolean } = {};
public willUpdate(changes: PropertyValues): void {
super.willUpdate(changes);
if (changes.has('template')) {
this.textInputAttachments = {};
this.currentVariables = this.variables || [];
// check if our variables should be a textinput
if (this.currentVariables.length > 0) {
this.currentVariables.forEach((variable, index) => {
const split = variable.split(':');
if (split.length > 1) {
// we have a generary content type
if (split[0].indexOf('/') === -1) {
this.textInputAttachments[index] = true;
}
}
});
}
}
}
private handleTemplateChanged(event: CustomEvent) {
const prev = this.selectedTemplate;
this.selectedTemplate = (event.target as any).values[0] as Template;
if (prev) {
this.currentVariables = [];
this.textInputAttachments = {};
}
if (this.selectedTemplate) {
this.translation = this.selectedTemplate.base_translation;
if (this.translation) {
this.variables = new Array(
(this.translation.variables || []).length
).fill('');
} else {
this.variables = [];
}
} else {
this.translation = null;
this.variables = [];
}
this.fireCustomEvent(CustomEventType.ContextChanged, {
template: this.selectedTemplate,
translation: this.translation,
variables: this.currentVariables
});
}
private handleAttachmentLoading(event: CustomEvent) {
const media = event.target as MediaPicker;
const index = parseInt(media.getAttribute('index'));
this.pickersLoading[index] = event.detail.loading;
this.requestUpdate();
}
private handleAttachmentsChanged(event: CustomEvent) {
const media = event.target as MediaPicker;
const index = parseInt(media.getAttribute('index'));
if (media.attachments.length === 0) {
this.currentVariables[index] = '';
} else {
const attachment = media.attachments[0];
if (attachment.url && attachment.content_type) {
this.currentVariables[index] =
`${attachment.content_type}:${attachment.url}`;
} else {
this.currentVariables[index] = ``;
}
}
this.fireContentChange();
this.requestUpdate('currentVariables');
}
private handleVariableChanged(event: InputEvent) {
const target = event.target as HTMLInputElement;
const variableIndex = parseInt(target.getAttribute('index'));
const prefix = target.getAttribute('prefix') || '';
// add our prefix if we have a value
let value = target.value;
if (value) {
value = prefix + value;
}
this.currentVariables[variableIndex] = value;
this.fireContentChange();
}
private fireContentChange() {
this.fireCustomEvent(CustomEventType.ContentChanged, {
template: this.selectedTemplate,
translation: this.translation,
variables: this.currentVariables
});
}
private renderVariables(component: Component) {
// create a regex match based on the variable names
const variableRegex = new RegExp(
`{{(${Object.keys(component.variables || []).join('|')})}}`,
'g'
);
let variables = null;
let parts = [];
if (component.content && component.content.trim().length > 0) {
parts = component.content?.split(variableRegex) || [];
}
const currVariables = this.currentVariables || [];
if (parts.length > 0) {
variables = parts.map((part, index) => {
if (index % 2 === 0) {
return html`<span class="text">${part}</span>`;
}
const variableIndex = component.variables[part];
return html`<temba-completion
class="variable"
type="text"
?session=${this.session}
value=${variableIndex < currVariables.length
? currVariables[variableIndex]
: null}
@keyup=${this.handleVariableChanged}
name="${component.name}"
index="${variableIndex}"
placeholder="{{${part}}}"
></temba-completion>`;
});
} else {
variables = Object.values(component.variables).map((variableIndex) => {
const variableSpec = this.translation.variables[variableIndex];
if (
variableSpec.type === 'image' ||
variableSpec.type === 'document' ||
variableSpec.type === 'audio' ||
variableSpec.type === 'video'
) {
let attachments = [];
if (this.currentVariables[variableIndex]) {
const parts = this.currentVariables[variableIndex].split(':');
const content_type = parts[0];
const url = parts.slice(1).join(':');
attachments = [{ url, content_type }];
}
const loading = this.pickersLoading[variableIndex];
const prefix = variableSpec.type + ':';
let value =
variableIndex < currVariables.length
? currVariables[variableIndex]
: null;
if (value && value.startsWith(prefix)) {
value = value.slice(prefix.length);
}
return html`
${this.textInputAttachments[variableIndex]
? html` <div class="label">
${variableSpec.type.charAt(0).toUpperCase() +
variableSpec.type.slice(1)}
URL
</div>
<div
style="display:flex;align-items:center;margin-bottom:1em;"
>
<temba-completion
style="flex-grow:1; margin-right:1em;"
?session=${this.session}
prefix="${prefix}"
index=${variableIndex}
value=${value}
@keyup=${this.handleVariableChanged}
></temba-completion>
<temba-icon
name="close"
clickable
@click=${() => {
this.textInputAttachments[variableIndex] = false;
this.currentVariables[variableIndex] = '';
this.requestUpdate();
}}
>
</temba-icon>
<div></div>
</div>`
: html`
<div
class=${getClasses({ loading })}
style="
display: flex;
align-items: center;
border-radius: var(--curvature);
margin-bottom: 0.5em;
${attachments.length === 0 && !loading
? `background-color:rgba(0,0,0,.04);`
: ``}"
>
<temba-media-picker
accept="${variableSpec.type === 'document'
? 'application/pdf'
: variableSpec.type + '/*'}"
max="1"
index=${variableIndex}
icon="attachment_${variableSpec.type}"
attachments=${JSON.stringify(attachments)}
@temba-loading=${this.handleAttachmentLoading.bind(this)}
@change=${this.handleAttachmentsChanged.bind(this)}
></temba-media-picker>
<div style="flex-grow:1">
${attachments.length == 0 && !loading
? html`Attach ${variableSpec.type} to continue`
: ''}
</div>
<temba-icon
clickable
name="edit"
@click=${() => {
this.currentVariables[variableIndex] = '';
this.textInputAttachments[variableIndex] = true;
this.requestUpdate();
}}
style="margin-right:1em"
></temba-icon>
</div>
`}
`;
}
});
}
return html`<div class="content">${variables}</div> `;
}
public renderComponents(components: Component[]): TemplateResult {
const nonButtons = components
.filter((comp) => !comp.type.startsWith('button/'))
.map(
(component) =>
html`<div class="${component['name']}">
${this.renderVariables(component)}
</div>`
);
const buttonComponents = components.filter((comp) =>
comp.type.startsWith('button/')
);
const buttons =
buttonComponents.length > 0 ? this.renderButtons(buttonComponents) : null;
return html`<div class="main">${nonButtons}</div>
<div class="buttons">
${buttons}
<div></div>
</div>`;
}
public renderButtons(components): TemplateResult {
const buttons = components.map((component) => {
if (component.display) {
return html`
<div class="button">
<div class="display">${component.display}</div>
${this.renderVariables(component)}
</div>
`;
} else {
return html`
<div class="button">${this.renderVariables(component)}</div>
`;
}
});
return html`<div class="button-wrapper">
<div class="button-header">Template Buttons</div>
<div class="buttons">${buttons}</div>
</div>`;
}
public renderWidget(): TemplateResult {
let content = null;
if (this.translation) {
content = this.renderComponents(this.translation.components);
} else if (this.selectedTemplate) {
content = html`<div class="error-message">
This template currently has no approved translations.
</div>`;
}
return html`
<div>
<temba-select
searchable
?clearable=${!this.translating}
?disabled=${this.translating}
valuekey="uuid"
class="picker"
value="${this.template}"
endpoint="${this.url}"
shouldExclude=${(template) => template.status !== 'approved'}
placeholder="Select a template"
@temba-content-changed=${this.swallowEvent}
@change=${this.handleTemplateChanged}
>
</temba-select>
${this.templateWarning && this.selectedTemplate
? html`<temba-alert
level="warning"
style="margin-bottom: 0.5em; display: block;"
>${this.templateWarning}</temba-alert
>`
: null}
${content ? html` <div class="template">${content}</div>` : null}
</div>
`;
}
}
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