✨ Able to get own poll answer & poll answer percentage

pkg/internal/http/api/index.go

@@ -71,6 +71,7 @@ func MapAPIs(app *fiber.App, baseURL string) {
 			polls.Put("/:pollId", updatePoll)
 			polls.Delete("/:pollId", deletePoll)
 			polls.Post("/:pollId/answer", answerPoll)
+			polls.Get("/:pollId/answer", getMyPollAnswer)
 		}
 
 		subscriptions := api.Group("/subscriptions").Name("Subscriptions API")

pkg/internal/http/api/polls_api.go

@@ -12,6 +12,22 @@ import (
 	"github.com/gofiber/fiber/v2"
 )
 
+func getMyPollAnswer(c *fiber.Ctx) error {
+	if err := sec.EnsureAuthenticated(c); err != nil {
+		return err
+	}
+	user := c.Locals("user").(authm.Account)
+
+	pollId, _ := c.ParamsInt("pollId")
+
+	var answer models.PollAnswer
+	if err := database.C.Where("poll_id = ? AND account_id = ?", pollId, user.ID).First(&answer).Error; err != nil {
+		return fiber.NewError(fiber.StatusNotFound, err.Error())
+	}
+
+	return c.JSON(answer)
+}
+
 func getPoll(c *fiber.Ctx) error {
 	pollId, _ := c.ParamsInt("pollId")
 

pkg/internal/models/polls.go

@@ -20,6 +20,7 @@ type Poll struct {
 type PollMetric struct {
 	TotalAnswer         int64              `json:"total_answer"`
 	ByOptions           map[string]int64   `json:"by_options"`
+	ByOptionsPercentage map[string]float64 `json:"by_options_percentage"`
 }
 
 type PollOption struct {

pkg/internal/services/polls.go

@@ -49,8 +49,14 @@ func GetPollMetric(poll models.Poll) models.PollMetric {
 		byOptions[answer.Answer]++
 	}
 
+	byOptionsPercentage := make(map[string]float64)
+	for _, option := range poll.Options {
+		byOptionsPercentage[option.ID] = float64(byOptions[option.ID]) / float64(len(answers))
+	}
+
 	return models.PollMetric{
 		TotalAnswer:         int64(len(answers)),
 		ByOptions:           byOptions,
+		ByOptionsPercentage: byOptionsPercentage,
 	}
 }