confused why compiler doesn't work

[mugenosantyago]

my contract is this:

contract UserProfile {
let owner: Address
let mut username: ByteVec
let mut bio: ByteVec
let mut profilePicHash: ByteVec
let mut followers: [Address]

// Constructor function
pub fn initialize(ownerAddress: Address) -> () {
    owner = ownerAddress
    username = ByteVec::empty()
    bio = ByteVec::empty()
    profilePicHash = ByteVec::empty()
    followers = [] // Initialize empty followers array
}

// Verify caller is profile owner
fn checkOwner() -> () {
    assert!(callerAddress!() == owner, 0)
}

// Event Definitions
event ProfileUpdated(newBio: ByteVec, newPic: ByteVec)
event NewFollower(follower: Address)

// Update Profile function
pub fn updateProfile(newBio: ByteVec, newPic: ByteVec) -> () {
    checkOwner()
    bio = newBio
    profilePicHash = newPic
    emit ProfileUpdated(newBio, newPic)
}

// Follow function
pub fn follow() -> () {
    let follower = callerAddress!()
    if followers.exists(f => f == follower) {
        // Handle case where follower is already in the list
        emit NewFollower(follower)
    } else {
        followers.push(follower)
        emit NewFollower(follower)
    }
}

// Get Profile function
pub fn getProfile() -> (ByteVec, ByteVec, ByteVec, U256) {
    return (username, bio, profilePicHash, followers.length())
}

}

I get this error every time:

✘ Failed to compile, error: user_profile.ral (1:1): Syntax error
1 |contract UserProfile {
|^^^^^^^^^^

Expected end-of-input
Trace log: Expected multiContract:1:1 / end-of-input:10:1, found "contract U"
otoyume@otoyumes-MacBook-Pro alephi v_4 %

[Lbqds]

Currently the compiler's error messages are not good enough. The first letter of contract should be capitalized: Contract UserProfile.

[mugenosantyago]

ok my updated code:

Contract UserProfile() {
let owner: Address
let mut username: ByteVec
let mut bio: ByteVec
let mut profilePicHash: ByteVec
let mut followers: Map<Address, U256>
let mut followerCount: U256

// Event declaration
event NewFollower(Address indexed follower)

pub fn __init__(ownerAddress: Address) -> () {
    assert!(owner == Address::zero(), "Already initialized")
    owner = ownerAddress
    username = ByteVec::empty()
    bio = ByteVec::empty()
    profilePicHash = ByteVec::empty()
    followers = Map<Address, U256>()
    followerCount = 0
}

// Check if the caller is the owner
fn checkOwner(&self) -> () {
    assert!(callerAddress!() == self.owner, "Not the owner")
}

pub fn follow() -> () {
    let follower = callerAddress!()
    if !followers.contains_key(&follower) {
        followers.insert(follower, 1);
        followerCount += 1
        emit NewFollower(follower)
    } else {
        let currentCount = followers[&follower];
        followers.insert(follower, currentCount + 1);
        // Do NOT increment followerCount for existing followers
    }
}

pub fn setUsername(newUsername: ByteVec) -> () {
    checkOwner()
    username = newUsername
    // Emit event if needed, e.g., emit UsernameUpdated(newUsername)
}

}

give an error of this:
✘ Failed to compile, error: user_profile.ral (2:5): Syntax error
2 | let owner: Address
| ^^^^^^^^^^

Expected "}"
Trace log: Expected multiContract:1:1 / globalDefinition:1:1 / rawContract:1:1 / "}":2:5, found "let owner:"
otoyume@otoyumes-MacBook-Pro alephi v_4 %

[Lbqds]

You can refer to the doc here to check the contract field definition: https://docs.alephium.org/ralph/contracts#fields

And the doc here for mapping: https://docs.alephium.org/ralph/types#map