/
report.go
225 lines (177 loc) · 5.2 KB
/
report.go
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package api
import (
"net/http"
"strconv"
"strings"
"github.com/bojand/ghz/web/model"
"github.com/labstack/echo"
)
// ReportDatabase interface for encapsulating database access.
type ReportDatabase interface {
CountReports() (uint, error)
CountReportsForProject(uint) (uint, error)
FindReportByID(uint) (*model.Report, error)
FindPreviousReport(uint) (*model.Report, error)
DeleteReport(*model.Report) error
DeleteReportBulk([]uint) (int, error)
ListReports(limit, page uint, sortField, order string) ([]*model.Report, error)
ListReportsForProject(pid, limit, page uint, sortField, order string) ([]*model.Report, error)
}
// The ReportAPI provides handlers for managing reports.
type ReportAPI struct {
DB ReportDatabase
}
// ReportList response
type ReportList struct {
Total uint `json:"total"`
Data []*model.Report `json:"data"`
}
// DeleteReportBulkRequest is the request to delete bulk reports
type DeleteReportBulkRequest struct {
IDs []uint `json:"ids"`
}
// ListReportsForProject lists reports for a project
func (api *ReportAPI) ListReportsForProject(ctx echo.Context) error {
var projectID uint64
var err error
pid := ctx.Param("pid")
if pid == "" {
return echo.NewHTTPError(http.StatusNotFound, "")
}
if projectID, err = strconv.ParseUint(pid, 10, 32); err != nil {
return echo.NewHTTPError(http.StatusNotFound, err.Error())
}
return api.listReports(true, uint(projectID), ctx)
}
// ListReportsAll gets a list of all reports
func (api *ReportAPI) ListReportsAll(ctx echo.Context) error {
return api.listReports(false, 0, ctx)
}
func (api *ReportAPI) listReports(forProject bool, projectID uint, ctx echo.Context) error {
var page uint64
var sort, order string
var err error
if page, err = strconv.ParseUint(ctx.QueryParam("page"), 10, 32); err != nil {
page = 0
}
if sort = ctx.QueryParam("sort"); sort == "" {
sort = "id"
}
if order = ctx.QueryParam("order"); order == "" {
order = "desc"
}
sort = strings.ToLower(sort)
order = strings.ToLower(order)
limit := uint(20)
countCh := make(chan uint, 1)
dataCh := make(chan []*model.Report, 1)
errCh := make(chan error, 2)
defer close(errCh)
go func() {
var count uint
if forProject {
count, err = api.DB.CountReportsForProject(projectID)
} else {
count, err = api.DB.CountReports()
}
errCh <- err
countCh <- count
close(countCh)
}()
go func() {
var reports []*model.Report
var err error
if forProject {
reports, err = api.DB.ListReportsForProject(uint(projectID), limit, uint(page), sort, order)
} else {
reports, err = api.DB.ListReports(limit, uint(page), sort, order)
}
errCh <- err
dataCh <- reports
close(dataCh)
}()
count, data, err1, err2 := <-countCh, <-dataCh, <-errCh, <-errCh
if err1 != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Bad Request: "+err1.Error())
}
if err2 != nil {
return echo.NewHTTPError(http.StatusInternalServerError, "Bad Request: "+err2.Error())
}
rl := &ReportList{Total: count, Data: data}
return ctx.JSON(http.StatusOK, rl)
}
// GetReport gets a report
func (api *ReportAPI) GetReport(ctx echo.Context) error {
var id uint64
var report *model.Report
var err error
if id, err = getReportID(ctx); err != nil {
return err
}
if report, err = api.DB.FindReportByID(uint(id)); err != nil {
return echo.NewHTTPError(http.StatusNotFound, err.Error())
}
return ctx.JSON(http.StatusOK, report)
}
// DeleteReport deletes a report
func (api *ReportAPI) DeleteReport(ctx echo.Context) error {
var id uint64
var report *model.Report
var err error
if id, err = getReportID(ctx); err != nil {
return err
}
if report, err = api.DB.FindReportByID(uint(id)); err != nil {
return echo.NewHTTPError(http.StatusNotFound, err.Error())
}
err = api.DB.DeleteReport(report)
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, err.Error())
}
return ctx.JSON(http.StatusOK, report)
}
// DeleteReportBulk deletes bulk reports
func (api *ReportAPI) DeleteReportBulk(ctx echo.Context) error {
del := new(DeleteReportBulkRequest)
var err error
if err := ctx.Bind(del); err != nil {
return echo.NewHTTPError(http.StatusBadRequest, err.Error())
}
if ctx.Echo().Validator != nil {
if err := ctx.Validate(del); err != nil {
return echo.NewHTTPError(http.StatusBadRequest, err.Error())
}
}
n, err := api.DB.DeleteReportBulk(del.IDs)
if err != nil {
return echo.NewHTTPError(http.StatusBadRequest, err.Error())
}
m := make(map[string]int)
m["deleted"] = n
return ctx.JSON(http.StatusOK, m)
}
// GetPreviousReport gets a previous report
func (api *ReportAPI) GetPreviousReport(ctx echo.Context) error {
var id uint64
var report *model.Report
var err error
if id, err = getReportID(ctx); err != nil {
return err
}
if report, err = api.DB.FindPreviousReport(uint(id)); err != nil {
return echo.NewHTTPError(http.StatusNotFound, err.Error())
}
return ctx.JSON(http.StatusOK, report)
}
func getReportID(ctx echo.Context) (uint64, error) {
var id uint64
var err error
rid := ctx.Param("rid")
if rid == "" {
return 0, echo.NewHTTPError(http.StatusNotFound, "")
}
if id, err = strconv.ParseUint(rid, 10, 32); err != nil {
return 0, echo.NewHTTPError(http.StatusNotFound, err.Error())
}
return id, err
}