package handler

import (
	"net/http"

	"giter.top/smart/internal/iam/service"
	"github.com/gin-gonic/gin"
)

type DeptHandler struct {
	svc service.DeptService
}

func NewDeptHandler(svc service.DeptService) *DeptHandler {
	return &DeptHandler{svc: svc}
}

func (h *DeptHandler) Tree(c *gin.Context) {
	tid := headerTenantID(c)
	keyword := c.Query("keyword")
	var leaderID *string
	if s := c.Query("leader_id"); s != "" {
		leaderID = &s
	}
	tree, err := h.svc.Tree(c.Request.Context(), tid, keyword, leaderID)
	if err != nil {
		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, tree)
}

func (h *DeptHandler) Create(c *gin.Context) {
	tid := headerTenantID(c)
	var req service.CreateDeptRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	d, err := h.svc.Create(c.Request.Context(), tid, &req)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusCreated, d)
}

func (h *DeptHandler) Update(c *gin.Context) {
	tid := headerTenantID(c)
	id := c.Param("id")
	if id == "" {
		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid id"})
		return
	}
	var req service.UpdateDeptRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	d, err := h.svc.Update(c.Request.Context(), tid, id, &req)
	if err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, d)
}

func (h *DeptHandler) Delete(c *gin.Context) {
	tid := headerTenantID(c)
	var ids []string
	if err := c.ShouldBindJSON(&ids); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	if err := h.svc.Delete(c.Request.Context(), tid, ids); err != nil {
		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
		return
	}
	c.Status(http.StatusNoContent)
}

func (h *DeptHandler) Get(c *gin.Context) {
	tid := headerTenantID(c)
	id := c.Param("id")
	if id == "" {
		c.JSON(http.StatusBadRequest, gin.H{"error": "invalid id"})
		return
	}
	d, err := h.svc.Get(c.Request.Context(), tid, id)
	if err != nil {
		c.JSON(http.StatusNotFound, gin.H{"error": err.Error()})
		return
	}
	c.JSON(http.StatusOK, d)
}