[API] extend StopWatch (#9196)

* squash api-stopwatch

* fix prepair logic! + add Tests

* fix lint

* more robust time compare

* delete responce 202 -> 204

* change http responce in test too

routers/api/v1/repo/issue_stopwatch.go

@@ -0,0 +1,216 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package repo
+
+import (
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/context"
+)
+
+// StartIssueStopwatch creates a stopwatch for the given issue.
+func StartIssueStopwatch(ctx *context.APIContext) {
+	// swagger:operation POST /repos/{owner}/{repo}/issues/{index}/stopwatch/start issue issueStartStopWatch
+	// ---
+	// summary: Start stopwatch on an issue.
+	// consumes:
+	// - application/json
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: owner
+	//   in: path
+	//   description: owner of the repo
+	//   type: string
+	//   required: true
+	// - name: repo
+	//   in: path
+	//   description: name of the repo
+	//   type: string
+	//   required: true
+	// - name: index
+	//   in: path
+	//   description: index of the issue to create the stopwatch on
+	//   type: integer
+	//   format: int64
+	//   required: true
+	// responses:
+	//   "201":
+	//     "$ref": "#/responses/empty"
+	//   "403":
+	//     description: Not repo writer, user does not have rights to toggle stopwatch
+	//   "404":
+	//     description: Issue not found
+	//   "409":
+	//     description: Cannot start a stopwatch again if it already exists
+	issue, err := prepareIssueStopwatch(ctx, false)
+	if err != nil {
+		return
+	}
+
+	if err := models.CreateOrStopIssueStopwatch(ctx.User, issue); err != nil {
+		ctx.Error(500, "CreateOrStopIssueStopwatch", err)
+		return
+	}
+
+	ctx.Status(201)
+}
+
+// StopIssueStopwatch stops a stopwatch for the given issue.
+func StopIssueStopwatch(ctx *context.APIContext) {
+	// swagger:operation POST /repos/{owner}/{repo}/issues/{index}/stopwatch/stop issue issueStopStopWatch
+	// ---
+	// summary: Stop an issue's existing stopwatch.
+	// consumes:
+	// - application/json
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: owner
+	//   in: path
+	//   description: owner of the repo
+	//   type: string
+	//   required: true
+	// - name: repo
+	//   in: path
+	//   description: name of the repo
+	//   type: string
+	//   required: true
+	// - name: index
+	//   in: path
+	//   description: index of the issue to stop the stopwatch on
+	//   type: integer
+	//   format: int64
+	//   required: true
+	// responses:
+	//   "201":
+	//     "$ref": "#/responses/empty"
+	//   "403":
+	//     description: Not repo writer, user does not have rights to toggle stopwatch
+	//   "404":
+	//     description: Issue not found
+	//   "409":
+	//     description:  Cannot stop a non existent stopwatch
+	issue, err := prepareIssueStopwatch(ctx, true)
+	if err != nil {
+		return
+	}
+
+	if err := models.CreateOrStopIssueStopwatch(ctx.User, issue); err != nil {
+		ctx.Error(500, "CreateOrStopIssueStopwatch", err)
+		return
+	}
+
+	ctx.Status(201)
+}
+
+// DeleteIssueStopwatch delete a specific stopwatch
+func DeleteIssueStopwatch(ctx *context.APIContext) {
+	// swagger:operation DELETE /repos/{owner}/{repo}/issues/{index}/stopwatch/delete issue issueDeleteStopWatch
+	// ---
+	// summary: Delete an issue's existing stopwatch.
+	// consumes:
+	// - application/json
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: owner
+	//   in: path
+	//   description: owner of the repo
+	//   type: string
+	//   required: true
+	// - name: repo
+	//   in: path
+	//   description: name of the repo
+	//   type: string
+	//   required: true
+	// - name: index
+	//   in: path
+	//   description: index of the issue to stop the stopwatch on
+	//   type: integer
+	//   format: int64
+	//   required: true
+	// responses:
+	//   "204":
+	//     "$ref": "#/responses/empty"
+	//   "403":
+	//     description: Not repo writer, user does not have rights to toggle stopwatch
+	//   "404":
+	//     description: Issue not found
+	//   "409":
+	//     description:  Cannot cancel a non existent stopwatch
+	issue, err := prepareIssueStopwatch(ctx, true)
+	if err != nil {
+		return
+	}
+
+	if err := models.CancelStopwatch(ctx.User, issue); err != nil {
+		ctx.Error(500, "CancelStopwatch", err)
+		return
+	}
+
+	ctx.Status(204)
+}
+
+func prepareIssueStopwatch(ctx *context.APIContext, shouldExist bool) (*models.Issue, error) {
+	issue, err := models.GetIssueByIndex(ctx.Repo.Repository.ID, ctx.ParamsInt64(":index"))
+	if err != nil {
+		if models.IsErrIssueNotExist(err) {
+			ctx.NotFound()
+		} else {
+			ctx.Error(500, "GetIssueByIndex", err)
+		}
+
+		return nil, err
+	}
+
+	if !ctx.Repo.CanWrite(models.UnitTypeIssues) {
+		ctx.Status(403)
+		return nil, err
+	}
+
+	if !ctx.Repo.CanUseTimetracker(issue, ctx.User) {
+		ctx.Status(403)
+		return nil, err
+	}
+
+	if models.StopwatchExists(ctx.User.ID, issue.ID) != shouldExist {
+		if shouldExist {
+			ctx.Error(409, "StopwatchExists", "cannot stop/cancel a non existent stopwatch")
+		} else {
+			ctx.Error(409, "StopwatchExists", "cannot start a stopwatch again if it already exists")
+		}
+		return nil, err
+	}
+
+	return issue, nil
+}
+
+// GetStopwatches get all stopwatches
+func GetStopwatches(ctx *context.APIContext) {
+	// swagger:operation GET /user/stopwatches user userGetStopWatches
+	// ---
+	// summary: Get list of all existing stopwatches
+	// consumes:
+	// - application/json
+	// produces:
+	// - application/json
+	// responses:
+	//   "200":
+	//     "$ref": "#/responses/StopWatchList"
+
+	sws, err := models.GetUserStopwatches(ctx.User.ID)
+	if err != nil {
+		ctx.Error(500, "GetUserStopwatches", err)
+		return
+	}
+
+	apiSWs, err := sws.APIFormat()
+	if err != nil {
+		ctx.Error(500, "APIFormat", err)
+		return
+	}
+
+	ctx.JSON(200, apiSWs)
+}