From bac8731e17e0a61d319a292bdd8f3f86603b6488 Mon Sep 17 00:00:00 2001
From: Michael Weimann <mail@michael-weimann.eu>
Date: Sun, 16 Jan 2022 16:36:54 +0100
Subject: [PATCH] add pagination

---
 src/components/Paginator.vue | 49 ++++++++++++++++++++++++++++++++++
 src/store/search.js          | 30 ++++++++++++++++++---
 src/views/Search.vue         | 51 ++++++++++++++++++++++++++++++++++--
 3 files changed, 124 insertions(+), 6 deletions(-)
 create mode 100644 src/components/Paginator.vue

diff --git a/src/components/Paginator.vue b/src/components/Paginator.vue
new file mode 100644
index 0000000..31d14ca
--- /dev/null
+++ b/src/components/Paginator.vue
@@ -0,0 +1,49 @@
+<!--
+SPDX-FileCopyrightText: WTF Kooperative eG <https://wtf-eg.de/>
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+-->
+
+<template>
+  <ul class="pagination">
+    <li
+      class="page-item"
+        :class="{ active: page === current }"
+      v-for="page in pages"
+      :key="page"
+    >
+      <span
+        class="page-link pointer"
+        @click="onPageClicked(page)"
+      >
+        {{ page }}
+      </span>
+    </li>
+  </ul>
+</template>
+<script>
+
+export default {
+  name: 'Paginator',
+  props: {
+    page: Number,
+    current: Number,
+    pages: Number
+  },
+  methods: {
+    onPageClicked(page) {
+      if (page == this.current) {
+        return
+      }
+
+      this.$emit('page', page)
+    }
+  }
+}
+
+</script>
+<style>
+.pointer {
+  cursor: pointer;
+}
+</style>
diff --git a/src/store/search.js b/src/store/search.js
index b383fef..2a5b674 100644
--- a/src/store/search.js
+++ b/src/store/search.js
@@ -12,8 +12,10 @@ export default {
       profiles: [],
       error: false,
       errorMessage: '',
+      pages: 1,
       query: {
-        search: ''
+        search: '',
+        page: 1
       }
     }
   },
@@ -40,11 +42,17 @@ export default {
       state.errorMessage = errorMessage
     },
     setQuerySearch(state, search) {
-      state.query.search = search
+      state.query = {...state.query, search}
+    },
+    setPages(state, pages) {
+      state.pages = pages
+    },
+    setQueryPage(state, page) {
+      state.query = {...state.query, page}
     }
   },
   actions: {
-    async search({state, commit, rootState}) {
+    async search({state, commit, rootState, dispatch}) {
       if (state.searching) {
         return
       }
@@ -60,11 +68,13 @@ export default {
       commit('setErrorMessage', '')
 
       const url = new URL(`${window.ki.apiUrl}/users/profiles`)
-      
+
       if (state.query.search) {
         url.searchParams.append('search', state.query.search)
       }
 
+      url.searchParams.append('page', state.query.page)
+
       const headers = {
         Authorization: `Bearer ${rootState.token}`,
       }
@@ -81,8 +91,19 @@ export default {
         return
       }
 
+      console.log(response.ok)
+      console.log(response.status)
+      console.log(state.query.page)
+
       clearTimeout(timeoutId)
 
+      if (!response.ok && response.status === 404 && state.query.page != 1) {
+        commit('setQueryPage', 1)
+        commit('setSearching', false)
+        await dispatch('search')
+        return
+      }
+
       if (!response.ok) {
         commit('setError', true)
         commit('clearProfiles')
@@ -93,6 +114,7 @@ export default {
 
       const responseData = await response.json()
       commit('setProfiles', responseData.profiles)
+      commit('setPages', responseData.pages)
       commit('setSearching', false)
       commit('hideSpinner')
     }
diff --git a/src/views/Search.vue b/src/views/Search.vue
index ae36c63..fef58ec 100644
--- a/src/views/Search.vue
+++ b/src/views/Search.vue
@@ -53,12 +53,26 @@ SPDX-License-Identifier: AGPL-3.0-or-later
         <p v-if="searchText !== ''">Probiere eine andere Suche.</p>
       </div>
       <div v-else-if="showResults">
+        <div class="d-flex justify-content-around">
+          <Paginator 
+            :pages="pages" 
+            :current="currentPage"
+            @page="handlePageSelected"
+          />
+        </div>
         <SearchResult
           v-for="profile in profiles"
           :key="profile.user_id"
           class="mb-3"
           :profile="profile"
         />
+        <div class="d-flex justify-content-around">
+          <Paginator 
+            :pages="pages" 
+            :current="currentPage"
+            @page="handlePageSelected"
+          />
+        </div>
       </div>
     </div>
   </div>
@@ -67,21 +81,29 @@ SPDX-License-Identifier: AGPL-3.0-or-later
 <script>
 import { mapState } from 'vuex'
 
+import Paginator from '@/components/Paginator'
 import SearchResult from '@/components/SearchResult'
 import Spinner from '@/components/Spinner'
 
 export default {
   name: 'Search',
   components: {
+    Paginator,
     SearchResult,
     Spinner,
   },
+  data() {
+    return {
+      textChanged: false
+    }
+  },
   computed: {
     ...mapState({
       searching: state => state.search.searching,
       profiles: state => state.search.profiles,
       error: state => state.search.error,
       showSpinner: state => state.search.showSpinner,
+      pages: state => state.search.pages,
     }),
       searchText: {
         get() {
@@ -89,6 +111,15 @@ export default {
         },
         set(text) {
           this.$store.commit('search/setQuerySearch', text)
+          this.textChanged = true
+        }
+      },
+      currentPage: {
+        get() {
+          return this.$store.state.search.query.page
+        },
+        set(page) {
+          this.$store.commit('search/setQueryPage', page)
         }
       },
       showNoResults() {
@@ -109,21 +140,37 @@ export default {
   },
   methods: {
     handleSubmit() {
-      this.$router.push({ query: { query: this.searchText }})
+      if (this.textChanged === true) {
+        this.$store.commit('search/setQueryPage', 1)
+      }
+      this.pushState()
       this.$store.dispatch('search/search')
     },
     focusSearchText() {
       this.$nextTick(() => {
         this.$refs.searchTextInput.focus()
       })
+    },
+    handlePageSelected(page) {
+      this.currentPage = page
+      this.pushState()
+      this.$store.dispatch('search/search')
+    },
+    pushState() {
+      this.$router.push({ query: { query: this.searchText, page: this.currentPage }})
     }
   },
   created() {
-    if (this.$route.query.query !== undefined) {
+    if (this.$route.query.query) {
       this.searchText = this.$route.query.query
       this.$store.commit('search/clearProfiles')
     }
 
+    if (this.$route.query.page) {
+      this.currentPage = parseInt(this.$route.query.page, 10)
+      this.$store.commit('search/clearProfiles')
+    }
+
     this.$store.dispatch('search/search')
   }
 };