package controllers

import (
	"fmt"
	"html"
	"log"
	"net/http"
	"smt/models"
	"strings"

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

type SafeInput struct {
	SafeId   int    `db:"SafeId" json:"safeId"`
	SafeName string `db:"SafeName" json:"safeName"`
}

// GetSafesHandler provides a list of all safes that a user has access to
func GetSafesHandler(c *gin.Context) {
	var UserId int
	if val, ok := c.Get("user-id"); !ok {
		c.JSON(http.StatusBadRequest, gin.H{"error": "error determining user"})
		return
	} else {
		UserId = val.(int)
	}

	safes, err := models.SafeListAllowed(UserId)

	if err != nil {
		errString := fmt.Sprintf("error retrieving safes : '%s'", err)
		log.Printf("GetSafesHandler %s\n", errString)
		c.JSON(http.StatusBadRequest, gin.H{"error": errString})
		return
	}

	c.JSON(http.StatusOK, gin.H{"message": "success", "data": safes})
}

// GetAllSafesHandler provides an admin user a list of all safes that exist in the database
func GetAllSafesHandler(c *gin.Context) {
	safes, err := models.SafeList()

	if err != nil {
		errString := fmt.Sprintf("error retrieving safes : '%s'", err)
		log.Printf("GetSafesHandler %s\n", errString)
		c.JSON(http.StatusBadRequest, gin.H{"error": errString})
		return
	}

	c.JSON(http.StatusOK, gin.H{"message": "success", "data": safes})
}

func AddSafeHandler(c *gin.Context) {
	var input SafeInput

	if err := c.ShouldBindJSON(&input); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	if len(input.SafeName) == 0 {
		c.JSON(http.StatusBadRequest, gin.H{"error": "no safe name specified"})
		return
	}

	s := models.Safe{SafeId: input.SafeId, SafeName: input.SafeName}

	//remove leading/trailing spaces in safe name
	s.SafeName = html.EscapeString(strings.TrimSpace(s.SafeName))

	// Check if safe already exists
	testSafe, _ := models.SafeGetByName(s.SafeName)
	log.Printf("AddSafeHandler checking if safe '%s' already exists\n", s.SafeName)

	if (models.Safe{} == testSafe) {
		log.Printf("AddSafeHandler confirmed no existing safe name\n")
	} else {
		errorString := fmt.Sprintf("attempt to register conflicting safe '%s'", s.SafeName)
		log.Printf("Register error : '%s'\n", errorString)
		c.JSON(http.StatusBadRequest, gin.H{"error": errorString})
		return
	}

	_, err := s.SafeAdd()

	if err != nil {
		errString := fmt.Sprintf("error creating safe : '%s'", err)
		log.Printf("AddSafeHandler %s\n", errString)
		c.JSON(http.StatusBadRequest, gin.H{"error": errString})
		return
	}

	c.JSON(http.StatusOK, gin.H{"message": "safe creation success", "data": s})
}

func DeleteSafeHandler(c *gin.Context) {
	var input SafeInput

	if err := c.ShouldBindJSON(&input); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}

	// Input validation
	if input.SafeId == 0 && len(input.SafeName) == 0 {
		c.JSON(http.StatusBadRequest, gin.H{"error": "no safe name or id specified"})
		return
	}

	s := models.Safe{SafeId: input.SafeId, SafeName: input.SafeName}

	//remove leading/trailing spaces in safe name
	s.SafeName = html.EscapeString(strings.TrimSpace(s.SafeName))

	// Confirm safe exists
	testSafe, _ := models.SafeGetByName(s.SafeName)
	log.Printf("DeleteSafeHandler confirming group '%s' exists\n", s.SafeName)
	if (models.Safe{} == testSafe) {
		errString := fmt.Sprintf("attempt to delete non-existing safe '%s'", s.SafeName)
		log.Printf("DeleteSafeHandler %s\n", errString)
		c.JSON(http.StatusBadRequest, gin.H{"error": errString})
		return
	} else {
		err := s.SafeDelete()

		if err != nil {
			errString := fmt.Sprintf("error deleting safe : '%s'", err)
			log.Printf("DeleteSafeHandler %s\n", errString)
			c.JSON(http.StatusBadRequest, gin.H{"error": errString})
			return
		}

		c.JSON(http.StatusOK, gin.H{"message": "safe deletion success"})
	}
}