package handler

import (
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
	"github.com/warmbly/warmbly/internal/api/middleware"
	"github.com/warmbly/warmbly/internal/errx"
	"github.com/warmbly/warmbly/internal/models"
)

// OnboardingOAuthStartRequest starts an OAuth round trip for a Gmail or Outlook account.
type OnboardingOAuthStartRequest struct {
	Provider string `json:"provider"`
}

// OnboardingOAuthFinishRequest carries the authorization code + state back from the provider.
type OnboardingOAuthFinishRequest struct {
	Code  string `json:"code"`
	State string `json:"state"`
}

// OnboardingSMTPIMAPRequest connects an SMTP/IMAP mailbox in a single call.
type OnboardingSMTPIMAPRequest struct {
	Email string          `json:"email"`
	Name  string          `json:"name"`
	SMTP  *models.Service `json:"smtp"`
	IMAP  *models.Service `json:"imap"`
}

func (h *Handler) StartEmailOAuth(c *gin.Context) {
	userID := middleware.GetUserID(c)
	orgID := middleware.GetOrganizationID(c)

	var req OnboardingOAuthStartRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		errx.Handle(c, errx.ErrInvalid)
		return
	}

	resp, xerr := h.EmailService.OAuthStart(c.Request.Context(), userID, orgID, models.InboxProvider(req.Provider))
	if xerr != nil {
		errx.Handle(c, xerr)
		return
	}

	c.JSON(http.StatusOK, resp)
}

func (h *Handler) FinishEmailOAuth(c *gin.Context) {
	userIDStr := middleware.GetUserID(c)

	var req OnboardingOAuthFinishRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		errx.Handle(c, errx.ErrInvalid)
		return
	}

	acc, xerr := h.EmailService.OAuthFinish(c.Request.Context(), userIDStr, req.Code, req.State)
	if xerr != nil {
		errx.Handle(c, xerr)
		return
	}

	if userID, err := uuid.Parse(userIDStr); err == nil {
		h.AuditService.LogAction(c.Request.Context(), userID, models.AuditActionCreate, models.AuditEntityEmailAccount, &acc.ID, c.ClientIP(), c.Request.UserAgent(), map[string]string{
			"provider": acc.Provider,
			"email":    acc.Email,
		}, nil)
	}

	c.JSON(http.StatusCreated, acc)
}

func (h *Handler) ConnectEmailSMTPIMAP(c *gin.Context) {
	userIDStr := middleware.GetUserID(c)
	orgID := middleware.GetOrganizationID(c)

	var req OnboardingSMTPIMAPRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		errx.Handle(c, errx.ErrInvalid)
		return
	}

	acc, xerr := h.EmailService.OnboardSMTPIMAP(c.Request.Context(), userIDStr, orgID, &models.NewSMTPIMAPAccount{
		Email: req.Email,
		Name:  req.Name,
		SMTP:  req.SMTP,
		IMAP:  req.IMAP,
	})
	if xerr != nil {
		errx.Handle(c, xerr)
		return
	}

	if userID, err := uuid.Parse(userIDStr); err == nil {
		h.AuditService.LogAction(c.Request.Context(), userID, models.AuditActionCreate, models.AuditEntityEmailAccount, &acc.ID, c.ClientIP(), c.Request.UserAgent(), map[string]string{
			"provider": "smtp_imap",
			"email":    acc.Email,
		}, nil)
	}

	c.JSON(http.StatusCreated, acc)
}