package controllers

import (
	"context"
	"opsxloki/dto"
	"opsxloki/models"
	"opsxloki/services"
	"opsxloki/utils"
	"time"

	"github.com/gin-gonic/gin"
)

func (ctrl *ClusterController) Namespaces(c *gin.Context) {
	id, err := utils.IntParam(c, "id")
	if err != nil {
		utils.BadRequest(c, "ID 无效")
		return
	}
	cluster, err := ctrl.service.Get(uint(id))
	if err != nil {
		utils.NotFound(c, "集群不存在")
		return
	}
	ctx, cancel := context.WithTimeout(c.Request.Context(), 12*time.Second)
	defer cancel()
	items, err := services.ListClusterNamespaces(ctx, cluster)
	if err != nil {
		utils.Error(c, 400, err.Error())
		return
	}
	utils.Success(c, gin.H{"namespaces": items})
}

func (ctrl *ClusterController) Deployments(c *gin.Context) {
	id, err := utils.IntParam(c, "id")
	if err != nil {
		utils.BadRequest(c, "ID 无效")
		return
	}
	cluster, err := ctrl.service.Get(uint(id))
	if err != nil {
		utils.NotFound(c, "集群不存在")
		return
	}
	ctx, cancel := context.WithTimeout(c.Request.Context(), 12*time.Second)
	defer cancel()
	items, err := services.ListClusterDeployments(ctx, cluster, c.Param("namespace"))
	if err != nil {
		utils.Error(c, 400, err.Error())
		return
	}
	utils.Success(c, gin.H{"deployments": items})
}

type ClusterController struct {
	service *services.ClusterService
}

func NewClusterController() *ClusterController {
	return &ClusterController{service: services.NewClusterService()}
}

func (ctrl *ClusterController) Create(c *gin.Context) {
	var req dto.CreateClusterRequest
	if !utils.BindAndValidate(c, &req) {
		return
	}
	if req.ConfigType == "" {
		req.ConfigType = "kubeconfig"
	}
	if req.ConfigType == "kubeconfig" && req.KubeConfig == "" {
		utils.BadRequest(c, "请填写 kubeconfig 内容")
		return
	}
	if req.ConfigType == "token" && (req.APIServer == "" || req.Token == "") {
		utils.BadRequest(c, "Token 接入方式需要填写 API Server 和 Token")
		return
	}

	cluster, err := ctrl.service.Create(req.Name, req.Description, req.ConfigType, req.APIServer, req.KubeConfig, req.Token, req.Context)
	if err != nil {
		utils.Error(c, 400, err.Error())
		return
	}
	utils.Success(c, models.SanitizedJSON(cluster))
}

func (ctrl *ClusterController) Get(c *gin.Context) {
	id, err := utils.IntParam(c, "id")
	if err != nil {
		utils.BadRequest(c, "ID 无效")
		return
	}
	cluster, err := ctrl.service.Get(uint(id))
	if err != nil {
		utils.NotFound(c, "集群不存在")
		return
	}
	utils.Success(c, models.SanitizedJSON(cluster))
}

func (ctrl *ClusterController) List(c *gin.Context) {
	page, pageSize := utils.Pagination(c)
	clusters, total, err := ctrl.service.List(page, pageSize)
	if err != nil {
		utils.Error(c, 500, err.Error())
		return
	}
	utils.Success(c, utils.PageData{
		List: models.SanitizedJSON(clusters), Total: total, Page: page, PageSize: pageSize,
	})
}

func (ctrl *ClusterController) Update(c *gin.Context) {
	id, err := utils.IntParam(c, "id")
	if err != nil {
		utils.BadRequest(c, "ID 无效")
		return
	}
	var updates map[string]interface{}
	if !utils.BindAndValidate(c, &updates) {
		return
	}
	if err := ctrl.service.Update(uint(id), updates); err != nil {
		utils.Error(c, 400, err.Error())
		return
	}
	utils.Success(c, gin.H{"message": "更新成功"})
}

func (ctrl *ClusterController) Delete(c *gin.Context) {
	id, err := utils.IntParam(c, "id")
	if err != nil {
		utils.BadRequest(c, "ID 无效")
		return
	}
	if err := ctrl.service.Delete(uint(id)); err != nil {
		utils.Error(c, 400, err.Error())
		return
	}
	utils.Success(c, gin.H{"message": "删除成功"})
}

func (ctrl *ClusterController) Validate(c *gin.Context) {
	id, err := utils.IntParam(c, "id")
	if err != nil {
		utils.BadRequest(c, "ID 无效")
		return
	}
	go ctrl.service.Validate(uint(id))
	utils.Success(c, gin.H{"message": "已开始验证连接"})
}

func (ctrl *ClusterController) GetInfo(c *gin.Context) {
	id, err := utils.IntParam(c, "id")
	if err != nil {
		utils.BadRequest(c, "ID 无效")
		return
	}
	cluster, err := ctrl.service.Get(uint(id))
	if err != nil {
		utils.NotFound(c, "集群不存在")
		return
	}
	info, err := services.GetClusterInfo(c.Request.Context(), cluster)
	if err != nil {
		utils.Error(c, 400, err.Error())
		return
	}
	utils.Success(c, info)
}