package queryapi

import (
	"fmt"
	"log/slog"
	"net/http"

	documentupload "queryorchestration/internal/document/upload"

	"github.com/labstack/echo/v4"
)

func (s *Controllers) UploadDocument(ctx echo.Context, clientId ClientID) error {
	form, err := ctx.MultipartForm()
	if err != nil {
		slog.Error("unable to get form data", "error", err)
		return echo.NewHTTPError(http.StatusBadRequest, "unable to get form data")
	}

	files := form.File["file"]
	if len(files) == 0 {
		return echo.NewHTTPError(http.StatusBadRequest, "missing file")
	} else if len(files) > 1 {
		return echo.NewHTTPError(http.StatusBadRequest, "too many files")
	}
	file := files[0]

	src, err := file.Open()
	if err != nil {
		return echo.NewHTTPError(http.StatusBadRequest, "unable to read file")
	}
	defer src.Close()

	err = s.svc.DocumentUpload.Upload(ctx.Request().Context(), documentupload.File{
		ClientID: clientId,
		Content:  src,
	})
	if err != nil {
		slog.Error("unable to get form data", "error", err)
		return echo.NewHTTPError(http.StatusBadRequest, "unable to upload file")
	}

	return ctx.NoContent(http.StatusOK)
}

func (s *Controllers) ListDocumentsByClientId(ctx echo.Context, clientId ClientID) error {
	documents, err := s.svc.Document.ListByClient(ctx.Request().Context(), clientId)
	if err != nil {
		return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Unable to list documents: %s", err))
	}

	docs := make([]DocumentSummary, len(documents))
	for i, doc := range documents {
		docs[i] = DocumentSummary{
			Id:   doc.ID,
			Hash: doc.Hash,
		}
	}

	return ctx.JSON(http.StatusOK, docs)
}

func (s *Controllers) GetDocument(ctx echo.Context, id DocumentID) error {
	document, err := s.svc.Document.GetExternal(ctx.Request().Context(), id)
	if err != nil {
		return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Unable to list documents: %s", err))
	}

	return ctx.JSON(http.StatusOK, Document{
		Id:       document.Id,
		ClientId: document.ClientID,
		Hash:     document.Hash,
		Fields:   document.Fields,
	})
}