package web_handlers

import (
	"encoding/json"
	"fmt"
	"net/http"
	"sort"

	"git.agecem.com/agecem/agecem-org/api"
	"git.agecem.com/agecem/agecem-org/models"
	"github.com/labstack/echo/v4"
)

func HandleIndex(c echo.Context) error {
	return c.Render(http.StatusOK, "index-html", nil)
}

/*
func HandleAPropos(c echo.Context) error {
	return c.Render(http.StatusOK, "a-propos-html", nil)
}
*/

/*
func HandleActualite(c echo.Context) error {
	return c.Render(http.StatusOK, "actualite-html", nil)
}
*/

/*
func HandleActualiteArticle(c echo.Context) error {
	article := c.Param("article")
	return c.String(http.StatusOK, fmt.Sprintf("Article: %s", article))
}
*/

func HandleVieEtudiante(c echo.Context) error {
	return c.Render(http.StatusOK, "vie-etudiante-html", nil)
}

func HandleVieEtudianteOrganisme(c echo.Context) error {
	organisme := c.Param("organisme")
	return c.String(http.StatusOK, fmt.Sprintf("Organisme: %s", organisme))
}

func HandleDocumentation(c echo.Context) error {
	var response models.HandleDocumentationResponse

	client, err := api.NewApiClientFromViper()
	if err != nil {
		return c.Render(http.StatusInternalServerError, "documentation-html", nil)
	}

	v1BucketListResponse, err := client.ListBuckets()
	if err != nil {
		response.StatusCode = v1BucketListResponse.StatusCode
		response.Message = v1BucketListResponse.Message
		response.Error = err.Error()

		return c.Render(response.StatusCode, "documentation-html", response)
	}

	//TODO check v1BucketListRespone StatusCode and Error

	for bucket, displayName := range v1BucketListResponse.Data.Buckets {
		// TODO move call to dedicated API client method
		// TODO add Response type
		content, err := client.Call(http.MethodGet, fmt.Sprintf("/v1/bucket/%s", bucket))
		if err != nil {
			return c.Render(http.StatusInternalServerError, "documentation-html", nil)
		}

		var documents []string

		err = json.Unmarshal(content, &documents)
		if err != nil {
			return c.Render(http.StatusInternalServerError, "documentation-html", nil)
		}

		// Ce bloc retire tous les caractères spéciaux d'une string
		// N'est pas présentement activé, car les fichiers sont processed
		// à la création de toute façon.
		/*
				reg, err := regexp.Compile("[^.a-zA-Z0-9_-]+")
				if err != nil {
					return c.Render(http.StatusInternalServerError, "documentation-html", nil)
				}

				var documents_processed []string

				for _, document := range documents {
					document_processed := reg.ReplaceAllString(document, "")
					documents_processed = append(documents_processed, document_processed)
				}
			documents_processed := documents
		*/

		response.Data.Buckets = append(response.Data.Buckets, models.Bucket{
			Name:        bucket,
			DisplayName: displayName,
			Documents:   documents,
		})
	}

	sort.SliceStable(response.Data.Buckets, func(i, j int) bool { return response.Data.Buckets[i].Name < response.Data.Buckets[j].Name })

	response.StatusCode = http.StatusOK

	// TODO render .Message
	return c.Render(response.StatusCode, "documentation-html", response.Data.Buckets)
}

func HandleFormulaires(c echo.Context) error {
	return c.Render(http.StatusOK, "formulaires-html", nil)
}

func HandlePublicDocumentation(c echo.Context) error {
	client, err := api.NewApiClientFromViper()
	if err != nil {
		return c.JSON(http.StatusNotFound, map[string]string{"message": "Not Found"})
	}

	bucket := c.Param("bucket")
	document := c.Param("document")

	result, err := client.Call(http.MethodGet, fmt.Sprintf("/v1/bucket/%s/%s", bucket, document))
	if err != nil {
		return c.JSON(http.StatusNotFound, map[string]string{"message": "Not Found"})
	}

	// Check if result can fit inside a map containing a message
	var result_map map[string]string

	err = json.Unmarshal(result, &result_map)
	if err == nil {
		return c.JSON(http.StatusBadRequest, result_map)
	}

	return c.Blob(http.StatusOK, "application/octet-stream", result)
}

func HandleAdmin(c echo.Context) error {
	return c.Render(http.StatusOK, "admin-html", nil)
}

func HandleAdminDocumentsUpload(c echo.Context) error {
	var response models.HandleAdminDocumentsUploadResponse
	client, err := api.NewApiClientFromViper()
	if err != nil {
		response.StatusCode = http.StatusInternalServerError
		response.Error = err.Error()

		return c.Render(response.StatusCode, "admin-upload-html", nil)
	}

	v1BucketListResponse, err := client.ListBuckets()
	if err != nil {
		response.StatusCode = v1BucketListResponse.StatusCode
		response.Error = err.Error()
		response.Message = v1BucketListResponse.Message

		return c.Render(response.StatusCode, "admin-upload-html", nil)
	}

	for bucketName, displayName := range v1BucketListResponse.Data.Buckets {
		response.Data.Buckets = append(response.Data.Buckets, models.Bucket{
			Name:        bucketName,
			DisplayName: displayName,
		})
	}
	response.StatusCode = http.StatusOK

	return c.Render(response.StatusCode, "admin-upload-html", response)
}

func HandleAdminDocumentsUploadPOST(c echo.Context) error {
	/*
		var data struct {
			Buckets []models.Bucket
			Message string
		}
	*/

	var response models.HandleAdminDocumentsUploadResponse

	client, err := api.NewApiClientFromViper()
	if err != nil {
		response.StatusCode = http.StatusInternalServerError
		response.Message = "Error during api.newApiClientFromViper()"
		response.Error = err.Error()

		return c.Render(response.StatusCode, "admin-upload-html", response)
	}

	v1BucketListResponse, err := client.ListBuckets()
	if err != nil {
		response.StatusCode = v1BucketListResponse.StatusCode
		response.Message = v1BucketListResponse.Message
		response.Error = err.Error()

		return c.Render(response.StatusCode, "admin-upload-html", response)
	}

	/*
		result, err := client.Call(http.MethodGet, "/v1/bucket")
		if err != nil {
			data.Message = "Error during GET /v1/bucket"
			return c.Render(http.StatusInternalServerError, "admin-upload-html", data)
		}

		var buckets map[string]string

		err = json.Unmarshal(result, &buckets)
		if err != nil {
			return c.Render(http.StatusInternalServerError, "admin-upload-html", nil)
		}
	*/

	for bucketName, displayName := range v1BucketListResponse.Data.Buckets {
		response.Data.Buckets = append(response.Data.Buckets, models.Bucket{
			Name:        bucketName,
			DisplayName: displayName,
		})
	}

	bucket := c.FormValue("bucket")

	document, err := c.FormFile("document")
	if err != nil {
		response.StatusCode = http.StatusBadRequest
		response.Message = "Formulaire invalide"
		response.Error = err.Error()

		return c.Render(response.StatusCode, "admin-upload-html", response)
	}

	uploadDocumentResponse, err := client.UploadDocument(bucket, document)
	if err != nil {
		response.StatusCode = uploadDocumentResponse.StatusCode
		response.Message = uploadDocumentResponse.Message
		response.Error = err.Error()

		return c.Render(response.StatusCode, "admin-upload-html", response)
	}

	// Format response
	var info, status string

	info = fmt.Sprintf("[%.0f] /public/documentation/%s/%s", uploadDocumentResponse.Data.Size, uploadDocumentResponse.Data.Bucket, uploadDocumentResponse.Data.Object)

	status = uploadDocumentResponse.Message

	response.StatusCode = http.StatusOK
	response.Message = fmt.Sprintf("%s - %s", status, info)

	return c.Render(response.StatusCode, "admin-upload-html", response)
}