feat(app): added paginator logic + emitters

abedzantout · abedzantout · commit 7c90ee84ddd8 · 2019-09-17T14:18:24.000+03:00
diff --git a/pages/index.tsx b/pages/index.tsx
@@ -17,11 +17,17 @@ type Props = {
     total: number;
     skip: number;
     limit: number;
+    page?: number;
 }
 
 const cards = (entries) => entries.map((entry, index) => (<Card info={entry} key={index}/>));
 
+const handlePaginationChange = (event) => {
+    console.log(event)
+};
+
 const IndexPage: NextPage = (props: Props) => {
+    const page = !!props.page ? props.page : 1;
     const entries = props.entries;
     const tags = props.tags || [];
     const total = props.total;
@@ -41,7 +47,7 @@ const IndexPage: NextPage = (props: Props) => {
                         </div>
                     </div>
                     <div className="pagination">
-                        <Paginator range={range} skip={skip}/>
+                        <Paginator handlePaginationChange={handlePaginationChange} range={range} skip={skip}/>
                     </div>
                 </div>
                 <div className="sidenav">
@@ -68,11 +74,12 @@ const IndexPage: NextPage = (props: Props) => {
     )
 };
 
-IndexPage.getInitialProps = async ({req}) => {
+IndexPage.getInitialProps = async ({req, query}) => {
+    const {page} = query;
     const {entries, total, skip, limit} = await getBlogPostEntries({limit: 1});
     const allTags = entries.map(entry => entry.tags);
     const tags = Array.from(new Set(allTags.flat(1)));
-    return {entries, tags, total, skip, limit};
+    return {page, entries, tags, total, skip, limit};
 };
 
 export default IndexPage;
diff --git a/shared/components/paginator/index.tsx b/shared/components/paginator/index.tsx
@@ -1,27 +1,36 @@
-import React, { FunctionComponent, Fragment } from 'react';
-import Link from 'next/link';
+import React, { FunctionComponent, Fragment, useState } from 'react';
 
 type Props = {
     skip?: number;
     range: number[];
+    handlePaginationChange: Function;
 }
-const Paginator: FunctionComponent<Props> = ({skip, range}) => {
+const Paginator: FunctionComponent<Props> = ({skip, range, handlePaginationChange}) => {
     skip = !!skip ? skip : 0;
-    console.log(skip);
-    console.log(range);
+
+    const [page, setPageNumber] = useState(1);
+
+    handlePaginationChange(page);
+
     return (
         <Fragment>
             <div className="paginator">
-                {range.length > 1 ? <span className="previous">{'<'}</span> : null}
+                {range.length > 1 ?
+                    <span className="previous"
+                          onClick={() => page <= 1 ? null : setPageNumber(page - 1)}>{'<'}</span> : null}
                 {range.map((num, index) => {
-                    return (<span className="page-number" key={index}>{num}</span>)
+                    return (<span className={`page-number ${num === page ? 'selected' : ''}`}
+                                  key={index} onClick={() => setPageNumber(num)}>{num}</span>)
                 })}
-                {range.length > 1 ? <span className="next">{'>'}</span> : null}
+                {range.length > 1 ? <span className="next"
+                                          onClick={() => page >= range[range.length - 1] ? null
+                                              : setPageNumber(page + 1)}>{'>'}</span> : null}
             </div>
             <style jsx>{`
                 .paginator {display: flex; flex-flow: row nowrap; justify-content: center;};
                  span { margin: 0 1rem; };
                  span:hover { cursor: pointer };
+                 .page-number.selected {};
             `}</style>
         </Fragment>
     )
