DBTextures = {}
local db = {}

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 = {}
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

return DBTextures