package api

import (
	"net/http"

	"github.com/gin-gonic/gin"

	"oci-portal/internal/oci"
)

// swag 解析 @Success 里的 oci.ReservedIP 需要本文件持有该包导入
var _ = oci.ReservedIP{}

// ---- 保留公网 IP ----

// @Summary  保留 IP 列表
// @Tags     网络
// @Param    id path int true "配置 ID"
// @Param    region query string false "区域,空为主区域"
// @Param    compartmentId query string false "区间 OCID,空为生效区间"
// @Success  200 {array} oci.ReservedIP
// @Security BearerAuth
// @Router   /api/v1/oci-configs/{id}/reserved-ips [get]
func (h *ociConfigHandler) listReservedIPs(c *gin.Context) {
	id, ok := pathID(c)
	if !ok {
		return
	}
	ips, err := h.svc.ReservedIPs(c.Request.Context(), id, c.Query("region"), c.Query("compartmentId"))
	if err != nil {
		respondError(c, err)
		return
	}
	c.JSON(http.StatusOK, ips)
}

// @Summary  创建保留 IP
// @Tags     网络
// @Param    id path int true "配置 ID"
// @Param    body body object true "请求体:region、compartmentId、displayName"
// @Success  201 {object} oci.ReservedIP
// @Security BearerAuth
// @Router   /api/v1/oci-configs/{id}/reserved-ips [post]
func (h *ociConfigHandler) createReservedIP(c *gin.Context) {
	id, ok := pathID(c)
	if !ok {
		return
	}
	var req struct {
		Region        string `json:"region"`
		CompartmentID string `json:"compartmentId"`
		DisplayName   string `json:"displayName"`
	}
	_ = c.ShouldBindJSON(&req)
	ip, err := h.svc.CreateReservedIP(c.Request.Context(), id, req.Region, req.CompartmentID, req.DisplayName)
	if err != nil {
		respondError(c, err)
		return
	}
	c.JSON(http.StatusCreated, ip)
}

// @Summary  绑定/解绑保留 IP
// @Description vnicId 非空时绑到该网卡,否则绑 instanceId 主网卡(两者都空为解绑);目标已有公网 IP 时自动释放/解绑
// @Tags     网络
// @Param    id path int true "配置 ID"
// @Param    publicIpId path string true "保留 IP OCID"
// @Param    body body object true "请求体:region、instanceId、vnicId"
// @Success  204 "绑定成功"
// @Security BearerAuth
// @Router   /api/v1/oci-configs/{id}/reserved-ips/{publicIpId} [put]
func (h *ociConfigHandler) assignReservedIP(c *gin.Context) {
	id, ok := pathID(c)
	if !ok {
		return
	}
	var req struct {
		Region     string `json:"region"`
		InstanceID string `json:"instanceId"`
		VnicID     string `json:"vnicId"`
	}
	_ = c.ShouldBindJSON(&req)
	err := h.svc.AssignReservedIP(c.Request.Context(), id, req.Region, c.Param("publicIpId"), req.InstanceID, req.VnicID)
	if err != nil {
		respondError(c, err)
		return
	}
	c.Status(http.StatusNoContent)
}

// @Summary  删除保留 IP
// @Tags     网络
// @Param    id path int true "配置 ID"
// @Param    publicIpId path string true "保留 IP OCID"
// @Param    region query string false "区域"
// @Success  204 "删除成功"
// @Security BearerAuth
// @Router   /api/v1/oci-configs/{id}/reserved-ips/{publicIpId} [delete]
func (h *ociConfigHandler) deleteReservedIP(c *gin.Context) {
	id, ok := pathID(c)
	if !ok {
		return
	}
	err := h.svc.DeleteReservedIP(c.Request.Context(), id, c.Query("region"), c.Param("publicIpId"))
	if err != nil {
		respondError(c, err)
		return
	}
	c.Status(http.StatusNoContent)
}