export const useFiles = () => {
    const supabase = useSupabaseClient()
    const toast = useToast()

    const auth = useAuthStore()

    let bucket = "filesdev"

    const uploadFiles = async (fileData, files,tags, upsert) => {
        const uploadSingleFile = async (file) => {
            //Create File Entry to Get ID for Folder

            const formData = new FormData()

            formData.append("file", file)
            formData.append("meta", JSON.stringify(fileData))

            const {fileReturn} = await useNuxtApp().$api("/api/files/upload",{
                method: "POST",
                body: formData
            })
        }

        if(files.length === 1) {
            await uploadSingleFile(files[0])
        } else if( files.length > 1) {

            for(let i = 0; i < files.length; i++){
                await uploadSingleFile(files[i])
            }

        }
    }

    const selectDocuments = async (sortColumn = null, folder = null) => {
        let data = []
        data = await useEntities("files").select("*, incominginvoice(*), project(*), vendor(*), customer(*), contract(*), plant(*), createddocument(*), vehicle(*), product(*), profile(*), check(*), inventoryitem(*)")



        const res =  await useNuxtApp().$api("/api/files/presigned",{
            method: "POST",
            body: {
                ids: data.map(i => i.id)
            }
        })

        console.log(res)

        return res.files
    }

    const selectSomeDocuments = async (documentIds, sortColumn = null, folder = null) => {

        if(documentIds.length === 0) return []
        const res =  await useNuxtApp().$api("/api/files/presigned",{
            method: "POST",
            body: {
                ids: documentIds
            }
        })

        console.log(res)

        return res.files


    }

    const selectDocument = async (id) => {
        let documentIds = [id]
        if(documentIds.length === 0) return []
        const res =  await useNuxtApp().$api("/api/files/presigned",{
            method: "POST",
            body: {
                ids: documentIds
            }
        })

        console.log(res)

        return res.files[0]
    }

    const downloadFile = async (id?: string, ids?: string[]) => {
        const url = id ? `/api/files/download/${id}` : `/api/files/download`
        const body = ids ? { ids } : undefined

        const res:any = await useNuxtApp().$api.raw(url, {
            method: "POST",
            body,
            responseType: "blob", // wichtig!
        })

        // Dateiname bestimmen
        let filename = "download"

        if (id) {
            // Einzeldatei → nimm den letzten Teil des Pfads aus Content-Disposition
            const contentDisposition = res.headers?.get("content-disposition")
            if (contentDisposition) {
                const match = contentDisposition.match(/filename="?([^"]+)"?/)
                if (match) filename = match[1]
            }
        } else {
            filename = "dateien.zip"
        }

        // Direkt speichern
        const blob = res._data as Blob
        const link = document.createElement("a")
        link.href = URL.createObjectURL(blob)
        link.download = filename
        link.click()
        URL.revokeObjectURL(link.href)
    }


    return {uploadFiles, selectDocuments, selectSomeDocuments, selectDocument, downloadFile}
}