package inbox

import (
	"net/http"
	"strconv"

	"github.com/gin-gonic/gin"
	"senlinai-agent/backend/internal/auth"
)

type Handler struct {
	service *Service
}

func NewHandler(service *Service) *Handler {
	return &Handler{service: service}
}

func (h *Handler) Register(router gin.IRouter) {
	router.POST("/projects/:projectID/inbox", h.capture)
	router.POST("/inbox/:id/analyze", h.analyze)
	router.POST("/inbox/:id/confirm", h.confirm)
}

func (h *Handler) capture(c *gin.Context) {
	userID, ok := auth.CurrentUserID(c)
	if !ok {
		c.JSON(http.StatusUnauthorized, gin.H{"error": "missing current user"})
		return
	}
	projectID, err := strconv.ParseUint(c.Param("projectID"), 10, 64)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid project id"})
		return
	}
	var input struct {
		SourceType string `json:"source_type"`
		Title      string `json:"title"`
		Body       string `json:"body"`
	}
	if err := c.ShouldBindJSON(&input); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid request"})
		return
	}
	item, err := h.service.Capture(CaptureInput{ProjectID: uint(projectID), UserID: userID, SourceType: input.SourceType, Title: input.Title, Body: input.Body})
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusCreated, item)
}

func (h *Handler) analyze(c *gin.Context) {
	userID, ok := auth.CurrentUserID(c)
	if !ok {
		c.JSON(http.StatusUnauthorized, gin.H{"error": "missing current user"})
		return
	}
	itemID, err := strconv.ParseUint(c.Param("id"), 10, 64)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid inbox id"})
		return
	}
	suggestions, err := h.service.Analyze(uint(itemID), userID)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, gin.H{"suggestions": suggestions})
}

func (h *Handler) confirm(c *gin.Context) {
	itemID, err := strconv.ParseUint(c.Param("id"), 10, 64)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid inbox id"})
		return
	}
	var input struct {
		Suggestions []Suggestion `json:"suggestions"`
	}
	if err := c.ShouldBindJSON(&input); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid request"})
		return
	}
	if err := h.service.Confirm(uint(itemID), input.Suggestions); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	c.Status(http.StatusNoContent)
}