<script>
import BaseComponent from 'primevue/basecomponent';
import { useStyle } from 'primevue/usestyle';

const styles = `
@layer primevue {
    .p-timeline {
        display: flex;
        flex-grow: 1;
        flex-direction: column;
    }
    
    .p-timeline-left .p-timeline-event-opposite {
        text-align: right;
    }
    
    .p-timeline-left .p-timeline-event-content {
        text-align: left;
    }
    
    .p-timeline-right .p-timeline-event {
        flex-direction: row-reverse;
    }
    
    .p-timeline-right .p-timeline-event-opposite {
        text-align: left;
    }
    
    .p-timeline-right .p-timeline-event-content {
        text-align: right;
    }
    
    .p-timeline-vertical.p-timeline-alternate .p-timeline-event:nth-child(even) {
        flex-direction: row-reverse;
    }
    
    .p-timeline-vertical.p-timeline-alternate .p-timeline-event:nth-child(odd) .p-timeline-event-opposite {
        text-align: right;
    }
    
    .p-timeline-vertical.p-timeline-alternate .p-timeline-event:nth-child(odd) .p-timeline-event-content {
        text-align: left;
    }
    
    .p-timeline-vertical.p-timeline-alternate .p-timeline-event:nth-child(even) .p-timeline-event-opposite {
        text-align: left;
    }
    
    .p-timeline-vertical.p-timeline-alternate .p-timeline-event:nth-child(even) .p-timeline-event-content {
        text-align: right;
    }
    
    .p-timeline-event {
        display: flex;
        position: relative;
        min-height: 70px;
    }
    
    .p-timeline-event:last-child {
        min-height: 0;
    }
    
    .p-timeline-event-opposite {
        flex: 1;
        padding: 0 1rem;
    }
    
    .p-timeline-event-content {
        flex: 1;
        padding: 0 1rem;
    }
    
    .p-timeline-event-separator {
        flex: 0;
        display: flex;
        align-items: center;
        flex-direction: column;
    }
    
    .p-timeline-event-marker {
        display: flex;
        align-self: baseline;
    }
    
    .p-timeline-event-connector {
        flex-grow: 1;
    }
    
    .p-timeline-horizontal {
        flex-direction: row;
    }
    
    .p-timeline-horizontal .p-timeline-event {
        flex-direction: column;
        flex: 1;
    }
    
    .p-timeline-horizontal .p-timeline-event:last-child {
        flex: 0;
    }
    
    .p-timeline-horizontal .p-timeline-event-separator {
        flex-direction: row;
    }
    
    .p-timeline-horizontal .p-timeline-event-connector {
        width: 100%;
    }
    
    .p-timeline-bottom .p-timeline-event {
        flex-direction: column-reverse;
    }
    
    .p-timeline-horizontal.p-timeline-alternate .p-timeline-event:nth-child(even) {
        flex-direction: column-reverse;
    }
}
`;

const classes = {
    root: ({ props }) => ['p-timeline p-component', 'p-timeline-' + props.align, 'p-timeline-' + props.layout],
    event: 'p-timeline-event',
    opposite: 'p-timeline-event-opposite',
    separator: 'p-timeline-event-separator',
    marker: 'p-timeline-event-marker',
    connector: 'p-timeline-event-connector',
    content: 'p-timeline-event-content'
};

const { load: loadStyle } = useStyle(styles, { name: 'timeline', manual: true });

export default {
    name: 'BaseTimeline',
    extends: BaseComponent,
    props: {
        value: null,
        align: {
            mode: String,
            default: 'left'
        },
        layout: {
            mode: String,
            default: 'vertical'
        },
        dataKey: null
    },
    css: {
        classes,
        loadStyle
    },
    provide() {
        return {
            $parentInstance: this
        };
    }
};
</script>
