DBTextures = {}
local db = {}

local dbUploadStatus = {}
local isUploading = {}

function DBTextures.init()
    InvokeEx.cancelInvoke(DBTextures.releaseTimeout)
    InvokeEx.invoke(DBTextures.releaseTimeout, 60)
end

function DBTextures.clean()
    InvokeEx.cancelInvoke(DBTextures.releaseTimeout)
    for k, v in ipairs(db) do
        GameObject.DestroyImmediate(v)
    end
    db = {}

    ---@param v UnityEngine.UnityWebRequest
    for k, www in pairs(dbUploadStatus) do
        if www then
            www.Dispose()
            www = nil
        end
    end
    dbUploadStatus = {}
end

function DBTextures.releaseTimeout()
    for k, v in ipairs(db) do
        if DateEx.nowMS - v.lastUseTime > 300000 then
            GameObject.DestroyImmediate(v.texture)
            db[k] = nil
        end
    end
end

---@return UnityEngine.UnityWebRequest
function DBTextures.getByUrl(url, callback, orgs)
    local tt = db[url]
    if tt then
        tt.lastUseTime = DateEx.nowMS
        db[url] = tt
        Utl.doCallback(callback, tt.texture, orgs)
        return nil
    end

    local request =
        WWWEx.get(
        url,
        nil,
        CLAssetType.texture,
        function(content)
            db[url] = {texture = content, lastUseTime = DateEx.nowMS}
            Utl.doCallback(callback, content, orgs)
        end,
        nil,
        orgs,
        true,
        1
    )
    return request
end

function DBTextures.upload(path, uploadPath, finishCallback)
    local key = joinStr(path, "_", uploadPath)
    if (not dbUploadStatus[key]) and (not isUploading[key]) then
        local www =
            NetProto.uploadFile(
            path,
            uploadPath,
            function(result, orgs)
                isUploading[key] = nil
                if result then
                    dbUploadStatus[key] = result
                end
                Utl.doCallback(finishCallback, result)
            end
        )
        isUploading[key] = www
        return www
    else
        if dbUploadStatus[key] then
            Utl.doCallback(finishCallback, dbUploadStatus[key])
        else
            printe("进到这里来了，有问题！！！！！！！")
        end
    end
end

function DBTextures.cancelUpload(path, uploadPath)
    local key = joinStr(path, "_", uploadPath)
    local www = isUploading[key]
    if www then
        www.Dispose()
        www = nil
        dbUploadStatus[key] = nil
        isUploading[key] = nil
    end
end

return DBTextures