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import Vue from 'vue';
import pick from 'lodash/pick';
import { slugify } from '~/lib/utils/text_utility';
import * as types from './mutation_types';
import { normalizeMetric, normalizeQueryResult } from './utils';
import { BACKOFF_TIMEOUT } from '../../lib/utils/common_utils';
import { metricStates } from '../constants';
import httpStatusCodes from '~/lib/utils/http_status';
const normalizePanelMetrics = (metrics, defaultLabel) =>
metrics.map(metric => ({
...normalizeMetric(metric),
label: metric.label || defaultLabel,
}));
/**
* Locate and return a metric in the dashboard by its id
* as generated by `uniqMetricsId()`.
* @param {String} metricId Unique id in the dashboard
* @param {Object} dashboard Full dashboard object
*/
const findMetricInDashboard = (metricId, dashboard) => {
let res = null;
dashboard.panel_groups.forEach(group => {
group.panels.forEach(panel => {
panel.metrics.forEach(metric => {
if (metric.metric_id === metricId) {
res = metric;
}
});
});
});
return res;
};
/**
* Set a new state for a metric.
*
* Initally metric data is not populated, so `Vue.set` is
* used to add new properties to the metric.
*
* @param {Object} metric - Metric object as defined in the dashboard
* @param {Object} state - New state
* @param {Array|null} state.result - Array of results
* @param {String} state.error - Error code from metricStates
* @param {Boolean} state.loading - True if the metric is loading
*/
const setMetricState = (metric, { result = null, loading = false, state = null }) => {
Vue.set(metric, 'result', result);
Vue.set(metric, 'loading', loading);
Vue.set(metric, 'state', state);
};
/**
* Maps a backened error state to a `metricStates` constant
* @param {Object} error - Error from backend response
*/
const emptyStateFromError = error => {
if (!error) {
return metricStates.UNKNOWN_ERROR;
}
// Special error responses
if (error.message === BACKOFF_TIMEOUT) {
return metricStates.TIMEOUT;
}
// Axios error responses
const { response } = error;
if (response && response.status === httpStatusCodes.SERVICE_UNAVAILABLE) {
return metricStates.CONNECTION_FAILED;
} else if (response && response.status === httpStatusCodes.BAD_REQUEST) {
// Note: "error.response.data.error" may contain Prometheus error information
return metricStates.BAD_QUERY;
}
return metricStates.UNKNOWN_ERROR;
};
export default {
/**
* Dashboard panels structure and global state
*/
[types.REQUEST_METRICS_DATA](state) {
state.emptyState = 'loading';
state.showEmptyState = true;
},
[types.RECEIVE_METRICS_DATA_SUCCESS](state, dashboard) {
state.dashboard = {
...dashboard,
panel_groups: dashboard.panel_groups.map((group, i) => {
const key = `${slugify(group.group || 'default')}-${i}`;
let { panels = [] } = group;
// each panel has metric information that needs to be normalized
panels = panels.map(panel => ({
...panel,
metrics: normalizePanelMetrics(panel.metrics, panel.y_label),
}));
return {
...group,
panels,
key,
};
}),
};
if (!state.dashboard.panel_groups.length) {
state.emptyState = 'noData';
}
},
[types.RECEIVE_METRICS_DATA_FAILURE](state, error) {
state.emptyState = error ? 'unableToConnect' : 'noData';
state.showEmptyState = true;
},
/**
* Deployments and environments
*/
[types.RECEIVE_DEPLOYMENTS_DATA_SUCCESS](state, deployments) {
state.deploymentData = deployments;
},
[types.RECEIVE_DEPLOYMENTS_DATA_FAILURE](state) {
state.deploymentData = [];
},
[types.REQUEST_ENVIRONMENTS_DATA](state) {
state.environmentsLoading = true;
},
[types.RECEIVE_ENVIRONMENTS_DATA_SUCCESS](state, environments) {
state.environmentsLoading = false;
state.environments = environments;
},
[types.RECEIVE_ENVIRONMENTS_DATA_FAILURE](state) {
state.environmentsLoading = false;
state.environments = [];
},
/**
* Individual panel/metric results
*/
[types.REQUEST_METRIC_RESULT](state, { metricId }) {
const metric = findMetricInDashboard(metricId, state.dashboard);
setMetricState(metric, {
loading: true,
state: metricStates.LOADING,
});
},
[types.RECEIVE_METRIC_RESULT_SUCCESS](state, { metricId, result }) {
if (!metricId) {
return;
}
state.showEmptyState = false;
const metric = findMetricInDashboard(metricId, state.dashboard);
if (!result || result.length === 0) {
setMetricState(metric, {
state: metricStates.NO_DATA,
});
} else {
const normalizedResults = result.map(normalizeQueryResult);
setMetricState(metric, {
result: Object.freeze(normalizedResults),
state: metricStates.OK,
});
}
},
[types.RECEIVE_METRIC_RESULT_FAILURE](state, { metricId, error }) {
if (!metricId) {
return;
}
const metric = findMetricInDashboard(metricId, state.dashboard);
setMetricState(metric, {
state: emptyStateFromError(error),
});
},
[types.SET_ENDPOINTS](state, endpoints = {}) {
const endpointKeys = [
'metricsEndpoint',
'deploymentsEndpoint',
'dashboardEndpoint',
'dashboardsEndpoint',
'currentDashboard',
'projectPath',
'logsPath',
];
Object.entries(pick(endpoints, endpointKeys)).forEach(([key, value]) => {
state[key] = value;
});
},
[types.SET_TIME_RANGE](state, timeRange) {
state.timeRange = timeRange;
},
[types.SET_GETTING_STARTED_EMPTY_STATE](state) {
state.emptyState = 'gettingStarted';
},
[types.SET_NO_DATA_EMPTY_STATE](state) {
state.showEmptyState = true;
state.emptyState = 'noData';
},
[types.SET_ALL_DASHBOARDS](state, dashboards) {
state.allDashboards = dashboards || [];
},
[types.SET_SHOW_ERROR_BANNER](state, enabled) {
state.showErrorBanner = enabled;
},
[types.SET_PANEL_GROUP_METRICS](state, payload) {
const panelGroup = state.dashboard.panel_groups.find(pg => payload.key === pg.key);
panelGroup.panels = payload.panels;
},
[types.SET_ENVIRONMENTS_FILTER](state, searchTerm) {
state.environmentsSearchTerm = searchTerm;
},
};
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