PLT-6408 Framework for job server (#6404)

* Added initial job server

* Added job server to be ran as part of platform

* Added test job to the enterprise repo

* Fixed job server not loading license

* Renamed job package to jobs

* Fixed TE not being buildable

* Added JobStatus table to database

* Changed fields used by JobStatus

* Added APIs to query job status

* Added config change listener to server

* Added option to run job server from Makefile

* Added ability to enable/disable jobs from config

* Commented out placeholder for search indexing job

* Fixed govet

* Removed debug messages and fixed job api init message

model/client4.go

@@ -254,6 +254,10 @@ func (c *Client4) GetOpenGraphRoute() string {
 	return fmt.Sprintf("/opengraph")
 }
 
+func (c *Client4) GetJobsRoute() string {
+	return fmt.Sprintf("/jobs")
+}
+
 func (c *Client4) DoApiGet(url string, etag string) (*http.Response, *AppError) {
 	return c.DoApiRequest(http.MethodGet, c.ApiUrl+url, "", etag)
 }
@@ -2638,3 +2642,25 @@ func (c *Client4) OpenGraph(url string) (map[string]string, *Response) {
 		return MapFromJson(r.Body), BuildResponse(r)
 	}
 }
+
+// Jobs Section
+
+// GetJobStatus gets the status of a single job.
+func (c *Client4) GetJobStatus(id string) (*JobStatus, *Response) {
+	if r, err := c.DoApiGet(c.GetJobsRoute()+fmt.Sprintf("/%v/status", id), ""); err != nil {
+		return nil, &Response{StatusCode: r.StatusCode, Error: err}
+	} else {
+		defer closeBody(r)
+		return JobStatusFromJson(r.Body), BuildResponse(r)
+	}
+}
+
+// GetJobStatusesByType gets the status of all jobs of a given type, sorted with the job that most recently started first.
+func (c *Client4) GetJobStatusesByType(jobType string, page int, perPage int) ([]*JobStatus, *Response) {
+	if r, err := c.DoApiGet(c.GetJobsRoute()+fmt.Sprintf("/type/%v/statuses?page=%v&per_page=%v", jobType, page, perPage), ""); err != nil {
+		return nil, &Response{StatusCode: r.StatusCode, Error: err}
+	} else {
+		defer closeBody(r)
+		return JobStatusesFromJson(r.Body), BuildResponse(r)
+	}
+}