package utils

import (
	"errors"
	"go-admin/common/actions"
	"net/http"

	"github.com/go-admin-team/go-admin-core/sdk/config"

	"github.com/go-admin-team/go-admin-core/sdk/service"
	v1 "github.com/prometheus/client_golang/api/prometheus/v1"

	"github.com/ClickHouse/clickhouse-go/v2/lib/driver"
	"github.com/gin-gonic/gin"
	"github.com/gin-gonic/gin/binding"
	"gorm.io/gorm"

	"github.com/go-admin-team/go-admin-core/logger"
	"github.com/go-admin-team/go-admin-core/sdk/api"
)

type OtApi struct {
	api.Api
	OlapConn driver.Conn
	ChOrm    *gorm.DB
	Prome    v1.API
}

type OtService struct {
	service.Service
	OlapConn       driver.Conn
	ChOrm          *gorm.DB
	DataPermission actions.DataPermission
	Prome          v1.API
}

func (e *OtApi) Init(c *gin.Context, req any, svc *OtService) error {
	if err := e.MakeContext(c).MakeDB().Errors; err != nil {
		e.Error(http.StatusInternalServerError, err, err.Error())
		return err
	}
	if err := e.Bind(req).Errors; err != nil {
		e.Error(http.StatusBadRequest, err, err.Error())
		return err
	}
	if err := e.MakeService(svc).Errors; err != nil {
		e.Error(http.StatusInternalServerError, err, err.Error())
		return err
	}
	svc.DataPermission = *actions.GetPermissionFromContext(c)
	return nil
}

func (e *OtApi) Handle() error {
	return nil
}

func (e *OtApi) MakeService(c *OtService) *OtApi {
	c.Log = e.Logger
	c.Orm = e.Orm
	if c.Orm != nil {
		c.Orm.WithContext(e.Context.Request.Context())
	}
	c.OlapConn = e.OlapConn
	c.ChOrm = e.ChOrm
	if c.ChOrm != nil {
		c.ChOrm.WithContext(e.Context.Request.Context())
	}
	c.Prome = e.Prome
	return e
}

func (e *OtApi) MakeDB() *OtApi {
	e.MakeOrm()
	OlapConn, err := getOlapDriver(e.Context)
	if err != nil {
		e.Logger.Error(http.StatusInternalServerError, err, "olap数据库连接获取失败")
		e.AddError(err)
	}
	e.OlapConn = OlapConn
	if e.ChOrm, err = getChOrm(e.Context); err != nil {
		e.Logger.Error(http.StatusInternalServerError, err, "olap数据库ORM获取失败")
		e.AddError(err)
	}
	if e.Prome, err = getPrometheus(e.Context); err != nil {
		e.Logger.Error(http.StatusInternalServerError, err, "prometheus api获取失败")
		e.AddError(err)
	}
	return e
}

func (e *OtApi) AddError(err error) {
	e.Api.AddError(err)
}

// MakeContext 设置http上下文
func (e *OtApi) MakeContext(c *gin.Context) *OtApi {
	e.Api.MakeContext(c)
	return e
}

// GetLogger 获取上下文提供的日志
func (e OtApi) GetLogger() *logger.Helper {
	return e.Api.GetLogger()
}

// Bind 参数校验
func (e *OtApi) Bind(d interface{}, bindings ...binding.Binding) *OtApi {
	e.Api.Bind(d, bindings...)
	return e
}

// GetOrm 获取Orm DB
func (e OtApi) GetOrm() (*gorm.DB, error) {
	return e.Api.GetOrm()
}

// MakeOrm 设置Orm DB
func (e *OtApi) MakeOrm() *OtApi {
	e.Api.MakeOrm()
	return e
}

// Error 通常错误数据处理
func (e OtApi) Error(code int, err error, msg string) {
	if config.ApplicationConfig.Mode == "dev" {
		e.Api.Error(code, err, msg)
	} else {
		e.Api.Error(code, nil, "网络异常，请稍后重试")
	}
}

// OK 通常成功数据处理
func (e OtApi) OK(data interface{}, msg string) {
	e.Api.OK(data, msg)
}

// PageOK 分页数据处理
func (e OtApi) PageOK(result interface{}, count int, pageIndex int, pageSize int, msg string) {
	e.Api.PageOK(result, count, pageIndex, pageSize, msg)
}

// Custom 兼容函数
func (e OtApi) Custom(data gin.H) {
	e.Api.Custom(data)
}

func (e OtApi) Translate(form, to interface{}) {
	e.Api.Translate(form, to)
}

// getAcceptLanguage 获取当前语言
func (e *OtApi) getAcceptLanguage() string {
	return ""
}

func getOlapDriver(c *gin.Context) (driver.Conn, error) {
	ap, exist := c.Get("olapdb")
	if !exist {
		return nil, errors.New("olapdb connect not exist")
	}
	switch t := ap.(type) {
	case driver.Conn:
		//新增操作
		return t, nil
	default:
		return nil, errors.New("olap connect not exist")
	}
}

func getChOrm(c *gin.Context) (*gorm.DB, error) {
	orm, exist := c.Get("chorm")
	if !exist {
		return nil, errors.New("clickhouse orm 获取失败")
	}
	switch t := orm.(type) {
	case *gorm.DB:
		return t, nil
	default:
		return nil, errors.New("clickhouse orm 获取成功，但类型错误")
	}
}

func getPrometheus(c *gin.Context) (v1.API, error) {
	prome, exist := c.Get("prome")
	if !exist {
		return nil, errors.New("prometheus api 获取失败")
	}

	switch t := prome.(type) {
	case v1.API:
		return t, nil
	default:
		return nil, errors.New("prometheus api 获取成功，但类型错误")
	}
}