package filehandler

import (
	"github.com/gin-gonic/gin"

	uploadlogic "spark-server/internal/module/upload/logic"
	"spark-server/internal/pkg/errs"
	"spark-server/internal/pkg/reqctx"
	"spark-server/internal/transport/http/respond"
)

// Handler is the files HTTP controller.
type Handler struct {
	files *uploadlogic.Service
}

func New(files *uploadlogic.Service) *Handler {
	return &Handler{files: files}
}

func (h *Handler) Create(c *gin.Context) {
	uid, ok := currentUID(c)
	if !ok {
		return
	}
	var in uploadlogic.CreateInput
	if err := respond.BindJSON(c, &in); err != nil {
		respond.JSONError(c, err)
		return
	}
	out, err := h.files.CreateCredential(c.Request.Context(), uid, &in)
	if err != nil {
		respond.JSONError(c, err)
		return
	}
	respond.JSON(c, out)
}

func (h *Handler) CreateBatch(c *gin.Context) {
	uid, ok := currentUID(c)
	if !ok {
		return
	}
	var in uploadlogic.BatchCreateInput
	if err := respond.BindJSON(c, &in); err != nil {
		respond.JSONError(c, err)
		return
	}
	out, err := h.files.CreateCredentials(c.Request.Context(), uid, &in)
	if err != nil {
		respond.JSONError(c, err)
		return
	}
	respond.JSON(c, out)
}

func (h *Handler) Download(c *gin.Context) {
	uid, ok := currentUID(c)
	if !ok {
		return
	}
	var in uploadlogic.DownloadInput
	if err := respond.BindJSON(c, &in); err != nil {
		respond.JSONError(c, err)
		return
	}
	out, err := h.files.CreateDownload(c.Request.Context(), uid, &in)
	if err != nil {
		respond.JSONError(c, err)
		return
	}
	respond.JSON(c, out)
}

func currentUID(c *gin.Context) (int64, bool) {
	rc := reqctx.From(c.Request.Context())
	if rc == nil || rc.UserID <= 0 {
		respond.JSONError(c, errs.ErrUnauthorized)
		return 0, false
	}
	return rc.UserID, true
}