feat: SLA reports store (#9185)

- Added sla reports actions, getters and mutations.

app/javascript/dashboard/store/modules/SLAReports.js

@@ -0,0 +1,99 @@
+import * as MutationHelpers from 'shared/helpers/vuex/mutationHelpers';
+import types from '../mutation-types';
+import SLAReportsAPI from '../../api/slaReports';
+
+export const state = {
+  records: [],
+  metrics: {
+    numberOfSLABreaches: 0,
+    hitRate: '0%',
+  },
+  uiFlags: {
+    isFetching: false,
+    isFetchingMetrics: false,
+  },
+  meta: {
+    count: 0,
+    currentPage: 1,
+  },
+};
+
+export const getters = {
+  getAll(_state) {
+    return _state.records;
+  },
+  getMeta(_state) {
+    return _state.meta;
+  },
+  getMetrics(_state) {
+    return _state.metrics;
+  },
+  getUIFlags(_state) {
+    return _state.uiFlags;
+  },
+};
+
+export const actions = {
+  get: async function getResponses({ commit }, params) {
+    commit(types.SET_SLA_REPORTS_UI_FLAG, { isFetching: true });
+    try {
+      const response = await SLAReportsAPI.get(params);
+      const { payload, meta } = response.data;
+
+      commit(types.SET_SLA_REPORTS, payload);
+      commit(types.SET_SLA_REPORTS_META, meta);
+    } catch (error) {
+      throw new Error(error);
+    } finally {
+      commit(types.SET_SLA_REPORTS_UI_FLAG, { isFetching: false });
+    }
+  },
+  getMetrics: async function getMetrics({ commit }, params) {
+    commit(types.SET_SLA_REPORTS_UI_FLAG, { isFetchingMetrics: true });
+    try {
+      const response = await SLAReportsAPI.getMetrics(params);
+      commit(types.SET_SLA_REPORTS_METRICS, response.data);
+    } catch (error) {
+      // Ignore error
+    } finally {
+      commit(types.SET_SLA_REPORTS_UI_FLAG, { isFetchingMetrics: false });
+    }
+  },
+};
+
+export const mutations = {
+  [types.SET_SLA_REPORTS_UI_FLAG](_state, data) {
+    _state.uiFlags = {
+      ..._state.uiFlags,
+      ...data,
+    };
+  },
+
+  [types.SET_SLA_REPORTS]: MutationHelpers.set,
+  [types.SET_SLA_REPORTS_METRICS](
+    _state,
+    { number_of_sla_breaches: numberOfSLABreaches, hit_rate: hitRate }
+  ) {
+    _state.metrics = {
+      numberOfSLABreaches,
+      hitRate,
+    };
+  },
+  [types.SET_SLA_REPORTS_META](
+    _state,
+    { total_applied_slas: totalAppliedSLAs, current_page: currentPage }
+  ) {
+    _state.meta = {
+      count: totalAppliedSLAs,
+      currentPage,
+    };
+  },
+};
+
+export default {
+  namespaced: true,
+  state,
+  getters,
+  actions,
+  mutations,
+};