package register

import (
	"git.linuxforward.com/byom/byom-onboard/internal/common/jwt"
	"git.linuxforward.com/byom/byom-onboard/internal/common/models"
	"git.linuxforward.com/byom/byom-onboard/internal/platform/database"
	"git.linuxforward.com/byom/byom-onboard/internal/platform/mailer"
	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
)

type Handler struct {
	mailer *mailer.Mailer
	db     *database.Database
	jwt    *jwt.JWTClient
}

func NewHandler(mailerClient *mailer.Mailer, db *database.Database, jwt *jwt.JWTClient) *Handler {
	return &Handler{
		mailer: mailerClient,
		db:     db,
		jwt:    jwt,
	}
}

func (h *Handler) Register(c *gin.Context) {
	var req models.User
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(400, gin.H{"error": err.Error()})
		return
	}

	// Generate email token
	token, err := h.jwt.GenerateEmailVerificationToken(req.Email)
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}

	req.Token = token
	req.Status = false

	// Save registration details to database
	if err := h.db.RegisterUser(&req); err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}

	// Send email
	if err := h.mailer.SendVerifyEmail(req.Email, token, req.Plan); err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}

	c.JSON(200, gin.H{"message": "Registration initiated successfully"})
}

func (h *Handler) CheckEmail(c *gin.Context) {
	var req models.User
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(400, gin.H{"error": err.Error()})
		return
	}

	// Generate email token
	token, err := h.jwt.GenerateEmailVerificationToken(req.Email)
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}

	req.ID = uuid.New().String()

	req.Token = token
	req.Status = false

	// Save registration details to database
	if err := h.db.RegisterUser(&req); err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}

	// Send email
	if err := h.mailer.SendVerifyEmail(req.Email, token, req.Plan); err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}

	c.JSON(200, gin.H{"message": "Email sent successfully"})
}

func (h *Handler) ValidateEmail(c *gin.Context) {
	token := c.Query("token")

	result, err := h.jwt.VerifyEmailToken(token)
	if err != nil {
		c.JSON(400, gin.H{"error": err.Error()})
		return
	}

	err = h.db.ChangeSubscriptionStatus(result)
	if err != nil {
		c.JSON(500, gin.H{"error": err.Error()})
		return
	}

	c.JSON(200, result)
}