package main

import (
	"log"
	"net/http"

	"github.com/gin-contrib/cors"
	"github.com/gin-gonic/gin"
)

type RelayRequest struct {
	SolverTimes SolverTimes `json:"solvers"`
	Events      []Event     `json:"events"`
}

func main() {
	r := gin.Default()
	r.Use(cors.Default())

	r.POST("/relay", func(c *gin.Context) {
		var req RelayRequest
		if c.BindJSON(&req) == nil {
			log.Println(req)

			participants := []Solver{}
			for s := range req.SolverTimes {
				participants = append(participants, s)
			}

			if len(participants) == 0 {
				c.JSON(http.StatusBadRequest, gin.H{
					"error": "list of participants is empty",
				})
				return
			}

			if len(participants) > 4 {
				c.JSON(http.StatusBadRequest, gin.H{
					"error": "too many participants",
				})
				return
			}

			if len(req.Events) > 11 {
				c.JSON(http.StatusBadRequest, gin.H{
					"error": "too many events",
				})
				return
			}

			assignment := Assign(participants, req.SolverTimes, req.Events)
			log.Println(assignment)
			c.JSON(http.StatusOK, gin.H{
				"response": assignment,
			})
		}
	})

	r.Run("0.0.0.0:1308") // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")
}