package main

import (
	"biukop.com/sfm/loan"
	log "github.com/sirupsen/logrus"
	"net/http"
	"os"
)

func apiV1UploadAsPDF(w http.ResponseWriter, r *http.Request, ss *loan.Session) {
	strId := r.URL.Path[len(apiV1Prefix+"upload-as-pdf/"):] //remove prefix
	if strId == "default" {
		http.ServeFile(w, r, config.UploadsDir.PdfDefault)
		return
	}
	ul, e := getRequestedUpload(strId, w, r, ss)
	if e != nil {
		return
	}

	//get file type
	fileType, e := ul.GetFileType()
	if e != nil {
		apiV1Client403Error(w, r, ss)
		return
	}

	// if its ready pdf, no need to convert
	if fileType == "pdf" {
		f, e := os.Open(ul.filePath())
		if e == nil {
			defer f.Close()
			fi, e := f.Stat()
			if e == nil {
				if forceHttpDownload(r) {
					w.Header().Set("Content-Disposition", "attachment; filename="+ul.Upload.FileName)
				}
				http.ServeContent(w, r, ul.Upload.FileName, fi.ModTime(), f)
				return
			}
		}
		// if we reach here, some err has happened
		log.Error("failed to serve pdf file ", ul, e)
		apiV1Server500Error(w, r)
		return
	}

	// see if a converted pdf exist, if not convert it and then send
	if !fileExists(ul.pdfPath()) {
		e = ul.convertUploadsToPDF()
		if e != nil {
			// serve a default no preview is available
			http.ServeFile(w, r, config.UploadsDir.PdfDefault)
			log.Error("error creating preview image", ul, e)
			return
		}
	}
	if fileExists(ul.pdfPath()) {
		http.ServeFile(w, r, ul.pdfPath())
		return
	} else {
		apiV1Client404Error(w, r, ss)
	}
}

func apiV1UploadCreatePDF(w http.ResponseWriter, r *http.Request, ss *loan.Session) {
	//time.Sleep(1* time.Second)

	strId := r.URL.Path[len(apiV1Prefix+"upload-as-pdf/"):] //remove prefix
	if strId == "" {
		apiV1Client404Error(w, r, ss)
		return
	}
	ul, e := getRequestedUpload(strId, w, r, ss)
	if e != nil {
		return
	}

	//get file type
	fileType, e := ul.GetFileType()
	if e != nil {
		apiV1Client403Error(w, r, ss)
		return
	}

	// if its ready pdf, no need to convert
	if fileType == "pdf" {
		apiV1SendJson(true, w, r, ss)
		return
	}

	// see if a converted pdf exist, if not convert it and then send
	if !fileExists(ul.pdfPath()) {
		e = ul.convertUploadsToPDF()
		if e != nil {
			log.Error("error creating pdf", ul, e)
			_, e = copyFile(config.UploadsDir.PdfDefault, ul.pdfPath())
			if e != nil {
				log.Error("failed copy default pdf", e)
			}
		}
	}
	if fileExists(ul.pdfPath()) {
		apiV1SendJson(true, w, r, ss)
		return
	} else {
		apiV1SendJson(false, w, r, ss)
	}
}