package handler

import (
	"fmt"
	"github.com/fastenhealth/fasten-onprem/backend/pkg"
	"github.com/fastenhealth/fasten-onprem/backend/pkg/config"
	"github.com/fastenhealth/fasten-onprem/backend/pkg/database"
	"github.com/fastenhealth/fasten-onprem/backend/pkg/models"
	"github.com/fastenhealth/fasten-sources/clients/factory"
	sourcePkg "github.com/fastenhealth/fasten-sources/pkg"
	"github.com/gin-gonic/gin"
	"github.com/sirupsen/logrus"
	"net/http"
	"net/url"
	"strings"
)

/*
These Endpoints are only available when Fasten is deployed with allow_unsafe_endpoints enabled.
*/

func UnsafeRequestSource(c *gin.Context) {
	logger := c.MustGet(pkg.ContextKeyTypeLogger).(*logrus.Entry)
	appConfig := c.MustGet(pkg.ContextKeyTypeConfig).(config.Interface)
	databaseRepo := c.MustGet(pkg.ContextKeyTypeDatabase).(database.DatabaseRepository)

	//safety check incase this function is called in another way
	if !appConfig.GetBool("web.allow_unsafe_endpoints") {
		c.JSON(http.StatusServiceUnavailable, gin.H{"success": false})
		return
	}

	//!!!!!!INSECURE!!!!!!S
	//We're setting the username to a user provided value, this is insecure, but required for calling databaseRepo fns
	c.Set("AUTH_USERNAME", c.Param("username"))

	foundSource, err := databaseRepo.GetSource(c, c.Param("sourceId"))
	if err != nil {
		logger.Errorf("An error occurred while finding source credential: %v", err)
		c.JSON(http.StatusInternalServerError, gin.H{"success": false, "error": err.Error()})
		return
	}

	if foundSource == nil {
		logger.Errorf("Did not source credentials for %s", c.Param("sourceType"))
		c.JSON(http.StatusNotFound, gin.H{"success": false, "error": err.Error()})
		return
	}

	client, err := factory.GetSourceClient(sourcePkg.GetFastenLighthouseEnv(), foundSource.SourceType, c, logger, foundSource)
	if err != nil {
		logger.Errorf("Could not initialize source client %v", err)
		c.JSON(http.StatusInternalServerError, gin.H{"success": false, "error": err.Error()})
		return
	}
	//TODO: if source has been updated, we should save the access/refresh token.
	//if updatedSource != nil {
	//	logger.Warnf("TODO: source credential has been updated, we should store it in the database: %v", updatedSource)
	//	//	err := databaseRepo.CreateSource(c, updatedSource)
	//	//	if err != nil {
	//	//		logger.Errorf("An error occurred while updating source credential %v", err)
	//	//		c.JSON(http.StatusInternalServerError, gin.H{"success": false, "error": err.Error()})
	//	//		return
	//	//	}
	//}

	var resp map[string]interface{}

	parsedUrl, err := url.Parse(strings.TrimSuffix(c.Param("path"), "/"))
	if err != nil {
		logger.Errorf("Error parsing request, %v", err)
		c.JSON(http.StatusInternalServerError, gin.H{"success": false, "error": err.Error()})
		return
	}
	//make sure we include all query string parameters with the raw request.
	parsedUrl.RawQuery = c.Request.URL.Query().Encode()

	_, err = client.GetRequest(parsedUrl.String(), &resp)
	if err != nil {
		logger.Errorf("Error making raw request, %v", err)
		c.JSON(http.StatusInternalServerError, gin.H{"success": false, "error": err.Error(), "data": resp})
		return
	}

	//update source incase the access token/refresh token has been updated
	sourceCredential := client.GetSourceCredential()
	sourceCredentialConcrete, ok := sourceCredential.(*models.SourceCredential)
	if !ok {
		logger.Errorln("An error occurred while updating source credential, source credential is not of type *models.SourceCredential")
		c.JSON(http.StatusOK, gin.H{"success": false, "data": resp, "error": fmt.Errorf("An error occurred while updating source credential, source credential is not of type *models.SourceCredential")})
		return
	}
	err = databaseRepo.UpdateSource(c, sourceCredentialConcrete)
	if err != nil {
		logger.Errorf("An error occurred while updating source credential: %v", err)
		c.JSON(http.StatusOK, gin.H{"success": false, "data": resp, "error": fmt.Errorf("An error occurred while updating source credential: %v", err)})
		return
	}

	c.JSON(http.StatusOK, gin.H{"success": true, "data": resp})
}

func UnsafeResourceGraph(c *gin.Context) {
	appConfig := c.MustGet(pkg.ContextKeyTypeConfig).(config.Interface)
	//safety check incase this function is called in another way
	if !appConfig.GetBool("web.allow_unsafe_endpoints") {
		c.JSON(http.StatusServiceUnavailable, gin.H{"success": false})
		return
	}

	//!!!!!!INSECURE!!!!!!S
	//We're setting the username to a user provided value, this is insecure, but required for calling databaseRepo fns
	c.Set(pkg.ContextKeyTypeAuthUsername, c.Param("username"))

	GetResourceFhirGraph(c)
}