The Book of Daniel is found in the Writings (Ketuv’im) along with the books of Esther, Psalms, Proverbs, and other “non-prophetic” books. Therefore, the book of Daniel is not found in the Prophets (Nevi’im) section, and Daniel himself is not considered a prophet in Judaism.
The purpose of the book of Jonah is to show that God is a merciful and gracious God. Although the wicked city of Nineveh deserved to be crushed immediately, God was patient towards them. A reluctant prophet, Jonah originally ran from God before delivering a message of repentance to the nation of Nineveh.
The message of the Day of the Lord, then, is that it’s coming is inevitable. Its harshness, though, is directly related to our disobedience to Yahweh: The greater the disobedience, the greater the destruction; the greater the righteousness, the greater the blessing.
Hopefully, if you know how to rightly divide your Bible, you can see why it is simply not possible to take the Second Coming prophecies of Joel 2 and 3 and try to place them on the Church.