package handler

import (
	"errors"
	"net/http"
	"strconv"

	"github.com/gin-gonic/gin"
	"github.com/google/uuid"

	"github.com/yuxingu/digital-psychology/apps/api/internal/middleware"
	"github.com/yuxingu/digital-psychology/apps/api/internal/service/admin"
	"github.com/yuxingu/digital-psychology/apps/api/pkg/response"
)

func (h *AdminHandler) registerQualityFeedback(authed *gin.RouterGroup) {
	authed.GET("/ask/feedback", middleware.RequireAdminPermission(h.Svc, admin.PermAskRead), h.ListAskFeedback)
	authed.POST("/ask/threads/:id/feedback", middleware.RequireAdminPermission(h.Svc, admin.PermAskFeedbackWrite), h.CreateAskFeedback)
}

func (h *AdminHandler) ListAskFeedback(c *gin.Context) {
	limit, _ := strconv.Atoi(c.DefaultQuery("limit", "20"))
	offset, _ := strconv.Atoi(c.DefaultQuery("offset", "0"))
	items, err := h.Svc.ListQualityFeedback(c.Request.Context(), limit, offset)
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50025, "list feedback failed")
		return
	}
	response.OK(c, gin.H{"items": items})
}

func (h *AdminHandler) CreateAskFeedback(c *gin.Context) {
	adminID, ok := middleware.AdminIDFromContext(c)
	if !ok {
		response.Fail(c, http.StatusUnauthorized, 40102, "admin session invalid")
		return
	}
	threadID, err := uuid.Parse(c.Param("id"))
	if err != nil {
		response.Fail(c, http.StatusBadRequest, 40002, "invalid thread id")
		return
	}
	var body struct {
		Rating    int     `json:"rating"`
		Tag       string  `json:"tag"`
		Note      string  `json:"note"`
		MessageID *string `json:"message_id"`
	}
	if err := c.ShouldBindJSON(&body); err != nil {
		response.Fail(c, http.StatusBadRequest, 40000, "invalid body")
		return
	}
	var msgID *uuid.UUID
	if body.MessageID != nil && *body.MessageID != "" {
		id, err := uuid.Parse(*body.MessageID)
		if err != nil {
			response.Fail(c, http.StatusBadRequest, 40002, "invalid message_id")
			return
		}
		msgID = &id
	}
	row, err := h.Svc.CreateQualityFeedback(c.Request.Context(), adminID, threadID, msgID, body.Rating, body.Tag, body.Note)
	if errors.Is(err, admin.ErrBadFeedbackRating) || errors.Is(err, admin.ErrBadFeedbackTag) || errors.Is(err, admin.ErrFeedbackNoteLong) {
		response.Fail(c, http.StatusBadRequest, 40000, err.Error())
		return
	}
	if errors.Is(err, admin.ErrAskThreadNotFound) {
		response.Fail(c, http.StatusNotFound, 40402, "ask thread not found")
		return
	}
	if errors.Is(err, admin.ErrMessageNotInThread) {
		response.Fail(c, http.StatusBadRequest, 40030, "message not in thread")
		return
	}
	if err != nil {
		response.Fail(c, http.StatusInternalServerError, 50026, "create feedback failed")
		return
	}
	response.OK(c, row)
}