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feat: implement quest expiry enforcement with on-chain timestamp vali… #224

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feat: implement quest expiry enforcement with on-chain timestamp vali… #224

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14 changes: 14 additions & 0 deletions contracts/quest_chain/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@ pub struct Quest {
pub prerequisites: Vec<u32>, // Quest IDs that must be completed first
pub branches: Vec<u32>, // Alternative quest IDs (for branching paths)
pub checkpoint: bool, // Whether this quest saves progress
pub expires_at: Option<u64>, // Optional expiry timestamp; None = no deadline
}

#[contracttype]
Expand Down Expand Up @@ -118,6 +119,7 @@ const MAX_LEADERBOARD_ENTRIES: u32 = 100;
const CHAIN_CREATED: Symbol = symbol_short!("chain_crt");
const QUEST_UNLOCKED: Symbol = symbol_short!("qst_unlck");
const QUEST_COMPLETED: Symbol = symbol_short!("qst_done");
const QUEST_EXPIRED: Symbol = symbol_short!("qst_exprd");
const CHAIN_COMPLETED: Symbol = symbol_short!("chn_done");
const PROGRESS_CHECKPOINT: Symbol = symbol_short!("checkpt");
const CHAIN_RESET: Symbol = symbol_short!("chn_reset");
Expand Down Expand Up @@ -337,6 +339,18 @@ impl QuestChainContract {
}
let quest = quest.unwrap();

// Enforce quest expiry deadline
if let Some(expires_at) = quest.expires_at {
let current_time = env.ledger().timestamp();
if current_time >= expires_at {
env.events().publish(
(QUEST_EXPIRED, player.clone()),
(chain_id, quest_id, expires_at),
);
panic!("Quest: expired");
}
}

// Check if quest is already completed
if progress.completed_quests.contains(&quest_id) {
panic!("Quest already completed");
Expand Down
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