package gateway

import (
	"git.sxidc.com/go-framework/baize/framework/core/api"
	"git.sxidc.com/go-tools/utils/http_client"
	"net/http"
)

type FormHeadersFunc func(c *api.Context) (map[string]string, error)
type FormBodyFunc func(c *api.Context) (any, error)
type FormQueryParamsFunc func(c *api.Context) (map[string]string, error)
type FormPathParamsFunc func(c *api.Context) (map[string]string, error)

func DefaultFormHeadersFunc(c *api.Context) (map[string]string, error) {
	return c.GetHeaders(), nil
}

func DefaultFormBodyFunc(c *api.Context) (any, error) {
	return c.ReadBody()
}

func DefaultFormQueryParamsFunc(c *api.Context) (map[string]string, error) {
	return c.GetAllQueryParams(), nil
}

func DefaultFormPathParamsFunc(c *api.Context) (map[string]string, error) {
	return c.GetAllPathParams(), nil
}

type BuilderRequest interface {
	HttpMethod() string
	RequestUrl() string
	Request(c *api.Context, request *http_client.Request) error
	Response() *http_client.Response
}

type PostRequest struct {
	Url     string
	Headers FormHeadersFunc
	Body    FormBodyFunc

	response *http_client.Response
}

func (req *PostRequest) HttpMethod() string {
	return http.MethodPost
}

func (req *PostRequest) RequestUrl() string {
	return req.Url
}

func (req *PostRequest) Request(c *api.Context, request *http_client.Request) error {
	if req.Headers == nil {
		req.Headers = DefaultFormHeadersFunc
	}

	if req.Body == nil {
		req.Body = DefaultFormBodyFunc
	}

	headers, err := req.Headers(c)
	if err != nil {
		return err
	}

	body, err := req.Body(c)
	if err != nil {
		return err
	}

	response, err := request.Post(req.Url, body,
		http_client.WithRequestHeaders(headers))
	if err != nil {
		return err
	}

	req.response = response

	return nil
}

func (req *PostRequest) Response() *http_client.Response {
	return req.response
}

type DeleteRequest struct {
	Url         string
	Headers     FormHeadersFunc
	PathParams  FormPathParamsFunc
	QueryParams FormQueryParamsFunc

	response *http_client.Response
}

func (req *DeleteRequest) HttpMethod() string {
	return http.MethodDelete
}

func (req *DeleteRequest) RequestUrl() string {
	return req.Url
}

func (req *DeleteRequest) Request(c *api.Context, request *http_client.Request) error {
	if req.Headers == nil {
		req.Headers = DefaultFormHeadersFunc
	}

	if req.QueryParams == nil {
		req.QueryParams = DefaultFormQueryParamsFunc
	}

	if req.PathParams == nil {
		req.PathParams = DefaultFormPathParamsFunc
	}

	headers, err := req.Headers(c)
	if err != nil {
		return err
	}

	queryParams, err := req.QueryParams(c)
	if err != nil {
		return err
	}

	pathParams, err := req.PathParams(c)
	if err != nil {
		return err
	}

	response, err := request.Delete(req.Url,
		http_client.WithRequestHeaders(headers),
		http_client.WithRequestPathParams(pathParams),
		http_client.WithRequestQueryParams(queryParams))
	if err != nil {
		return err
	}

	req.response = response

	return nil
}

func (req *DeleteRequest) Response() *http_client.Response {
	return req.response
}

type PutRequest struct {
	Url     string
	Headers FormHeadersFunc
	Body    FormBodyFunc

	response *http_client.Response
}

func (req *PutRequest) HttpMethod() string {
	return http.MethodPut
}

func (req *PutRequest) RequestUrl() string {
	return req.Url
}

func (req *PutRequest) Request(c *api.Context, request *http_client.Request) error {
	if req.Headers == nil {
		req.Headers = DefaultFormHeadersFunc
	}

	if req.Body == nil {
		req.Body = DefaultFormBodyFunc
	}

	headers, err := req.Headers(c)
	if err != nil {
		return err
	}

	body, err := req.Body(c)
	if err != nil {
		return err
	}

	response, err := request.Put(req.Url, body,
		http_client.WithRequestHeaders(headers))
	if err != nil {
		return err
	}

	req.response = response

	return nil
}

func (req *PutRequest) Response() *http_client.Response {
	return req.response
}

type GetRequest struct {
	Url         string
	Headers     FormHeadersFunc
	PathParams  FormPathParamsFunc
	QueryParams FormQueryParamsFunc

	response *http_client.Response
}

func (req *GetRequest) HttpMethod() string {
	return http.MethodGet
}

func (req *GetRequest) RequestUrl() string {
	return req.Url
}

func (req *GetRequest) Request(c *api.Context, request *http_client.Request) error {
	if req.Headers == nil {
		req.Headers = DefaultFormHeadersFunc
	}

	if req.QueryParams == nil {
		req.QueryParams = DefaultFormQueryParamsFunc
	}

	if req.PathParams == nil {
		req.PathParams = DefaultFormPathParamsFunc
	}

	headers, err := req.Headers(c)
	if err != nil {
		return err
	}

	queryParams, err := req.QueryParams(c)
	if err != nil {
		return err
	}

	pathParams, err := req.PathParams(c)
	if err != nil {
		return err
	}

	response, err := request.Get(req.Url,
		http_client.WithRequestHeaders(headers),
		http_client.WithRequestPathParams(pathParams),
		http_client.WithRequestQueryParams(queryParams))
	if err != nil {
		return err
	}

	req.response = response

	return nil
}

func (req *GetRequest) Response() *http_client.Response {
	return req.response
}