package api

import (
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/tcs-iptv/tcs/internal/httpx"
	"github.com/tcs-iptv/tcs/internal/model"
	"github.com/tcs-iptv/tcs/internal/service"
)

// AdminHandler 用户管理/组织管理 API 处理器（系统管理模块补足）。
type AdminHandler struct {
	admin *service.AdminService
}

// NewAdminHandler 创建用户/组织管理 API 处理器。
func NewAdminHandler(admin *service.AdminService) *AdminHandler {
	return &AdminHandler{admin: admin}
}

// Register 注册管理路由（应挂载在监管主体权限组下）。
func (h *AdminHandler) Register(rg *gin.RouterGroup) {
	// 组织管理
	rg.POST("/admin/orgs", h.createOrg)
	rg.PUT("/admin/orgs/:id", h.updateOrg)
	rg.GET("/admin/orgs", h.listOrgs)
	rg.GET("/admin/orgs/:id", h.getOrg)
	rg.POST("/admin/orgs/:id/disable", h.disableOrg)
	// 用户管理
	rg.POST("/admin/users", h.createUser)
	rg.PUT("/admin/users/:id", h.updateUser)
	rg.GET("/admin/users", h.listUsers)
	rg.GET("/admin/users/:id", h.getUser)
	rg.POST("/admin/users/:id/disable", h.disableUser)
	rg.POST("/admin/users/:id/reset-key", h.resetAPIKey)
}

// ---- 组织管理 handlers ----

func (h *AdminHandler) createOrg(c *gin.Context) {
	var org model.Organization
	if err := c.ShouldBindJSON(&org); err != nil {
		httpx.Error(c, http.StatusBadRequest, "INVALID_REQUEST", err.Error())
		return
	}
	result, err := h.admin.CreateOrg(org)
	if err != nil {
		httpx.Error(c, http.StatusBadRequest, "CREATE_ORG_FAILED", err.Error())
		return
	}
	httpx.Created(c, result)
}

func (h *AdminHandler) updateOrg(c *gin.Context) {
	orgID := c.Param("id")
	var updates model.Organization
	if err := c.ShouldBindJSON(&updates); err != nil {
		httpx.Error(c, http.StatusBadRequest, "INVALID_REQUEST", err.Error())
		return
	}
	result, err := h.admin.UpdateOrg(orgID, updates)
	if err != nil {
		httpx.Error(c, http.StatusBadRequest, "UPDATE_ORG_FAILED", err.Error())
		return
	}
	httpx.OK(c, result)
}

func (h *AdminHandler) getOrg(c *gin.Context) {
	orgID := c.Param("id")
	org, err := h.admin.GetOrg(orgID)
	if err != nil {
		httpx.Error(c, http.StatusNotFound, "NOT_FOUND", err.Error())
		return
	}
	httpx.OK(c, org)
}

func (h *AdminHandler) listOrgs(c *gin.Context) {
	orgType := c.Query("type")
	orgs := h.admin.ListOrgs(orgType)
	httpx.OK(c, orgs)
}

func (h *AdminHandler) disableOrg(c *gin.Context) {
	orgID := c.Param("id")
	if err := h.admin.DisableOrg(orgID); err != nil {
		httpx.Error(c, http.StatusBadRequest, "DISABLE_ORG_FAILED", err.Error())
		return
	}
	httpx.OK(c, gin.H{"status": "disabled"})
}

// ---- 用户管理 handlers ----

func (h *AdminHandler) createUser(c *gin.Context) {
	var user model.User
	if err := c.ShouldBindJSON(&user); err != nil {
		httpx.Error(c, http.StatusBadRequest, "INVALID_REQUEST", err.Error())
		return
	}
	result, err := h.admin.CreateUser(user)
	if err != nil {
		httpx.Error(c, http.StatusBadRequest, "CREATE_USER_FAILED", err.Error())
		return
	}
	httpx.Created(c, result)
}

func (h *AdminHandler) updateUser(c *gin.Context) {
	userID := c.Param("id")
	var updates model.User
	if err := c.ShouldBindJSON(&updates); err != nil {
		httpx.Error(c, http.StatusBadRequest, "INVALID_REQUEST", err.Error())
		return
	}
	result, err := h.admin.UpdateUser(userID, updates)
	if err != nil {
		httpx.Error(c, http.StatusBadRequest, "UPDATE_USER_FAILED", err.Error())
		return
	}
	httpx.OK(c, result)
}

func (h *AdminHandler) getUser(c *gin.Context) {
	userID := c.Param("id")
	user, err := h.admin.GetUser(userID)
	if err != nil {
		httpx.Error(c, http.StatusNotFound, "NOT_FOUND", err.Error())
		return
	}
	httpx.OK(c, user)
}

func (h *AdminHandler) listUsers(c *gin.Context) {
	orgID := c.Query("org_id")
	role := c.Query("role")
	users := h.admin.ListUsers(orgID, role)
	httpx.OK(c, users)
}

func (h *AdminHandler) disableUser(c *gin.Context) {
	userID := c.Param("id")
	if err := h.admin.DisableUser(userID); err != nil {
		httpx.Error(c, http.StatusBadRequest, "DISABLE_USER_FAILED", err.Error())
		return
	}
	httpx.OK(c, gin.H{"status": "disabled"})
}

func (h *AdminHandler) resetAPIKey(c *gin.Context) {
	userID := c.Param("id")
	user, err := h.admin.ResetAPIKey(userID)
	if err != nil {
		httpx.Error(c, http.StatusBadRequest, "RESET_KEY_FAILED", err.Error())
		return
	}
	httpx.OK(c, user)
}