package http

import (
	"apps/internal/fibonacci"
	"fmt"
	"net/http"

	"github.com/chenjiandongx/ginprom"
	"github.com/gin-gonic/gin"
	"github.com/prometheus/client_golang/prometheus/promhttp"
)

func StartServer() error {
	r := gin.Default()

	r.Use(ginprom.PromMiddleware(nil))

	r.GET("/fibonacci", CalculateFibonacci)
	r.GET("/metrics", gin.WrapH(promhttp.Handler()))

	return r.Run() // listen and serve on 0.0.0.0:8080
}

func CalculateFibonacci(c *gin.Context) {

	numberstr := c.Query("number")

	result, err := fibonacci.FibonacciFromString(numberstr)

	if err != nil {
		c.AbortWithStatus(http.StatusBadRequest)

		return
	}

	c.JSON(200, gin.H{
		"result": fmt.Sprint(result),
	})
}