;; GM ON STACKS v2 - MAINNET
;; =========================================================================
;; Features:
;; - GM Streak: Track daily GMs and reward consistent users
;; - Tiered NFT Pricing: 1 STX for 21+ day streak, 33 STX otherwise
;; =========================================================================
(impl-trait 'SP2PABAF9FTAJYNFZH93XENAJ8FVY99RRM50D2JG9.nft-trait.nft-trait)
;; =========================================================================
;; CONSTANTS
;; =========================================================================
(define-constant CONTRACT_OWNER tx-sender)
(define-constant GM_FEE u100000) ;; 0.1 STX
(define-constant NFT_FEE_STREAK u1000000) ;; 1 STX (21+ day streak)
(define-constant NFT_FEE_NORMAL u33000000) ;; 33 STX (no streak / <21 days)
(define-constant STREAK_THRESHOLD u21) ;; Days required for discount
(define-constant BLOCKS_PER_DAY u144) ;; ~10 min blocks = 144/day
(define-constant STREAK_WINDOW u288) ;; 2 days grace period in blocks
(define-constant ERR_NOT_TOKEN_OWNER (err u100))
(define-constant ERR_NOT_AUTHORIZED (err u101))
(define-constant ERR_INSUFFICIENT_FUNDS (err u102))
;; =========================================================================
;; DATA VARS & MAPS
;; =========================================================================
(define-non-fungible-token gm-nft uint)
(define-data-var last-token-id uint u0)
(define-data-var total-gms uint u0)
(define-data-var base-uri (string-ascii 256) "ipfs://bafybeid7zjg55ukcb3qvi2dd4psbs7fz4ivds7xgrmsp55nzuwslftxnp4")
;; User streak data
(define-map UserStreak principal {
current-streak: uint,
last-gm-block: uint,
total-gms: uint,
longest-streak: uint
})
;; Legacy user GM map (for backwards compatibility)
(define-map UserGM principal (string-ascii 64))
;; =========================================================================
;; SIP-009 NFT TRAIT FUNCTIONS
;; =========================================================================
(define-read-only (get-last-token-id)
(ok (var-get last-token-id))
)
(define-read-only (get-token-uri (token-id uint))
(ok (some (var-get base-uri)))
)
(define-read-only (get-owner (token-id uint))
(ok (nft-get-owner? gm-nft token-id))
)
(define-public (transfer (token-id uint) (sender principal) (recipient principal))
(begin
(asserts! (is-eq tx-sender sender) ERR_NOT_TOKEN_OWNER)
(nft-transfer? gm-nft token-id sender recipient)
)
)
;; =========================================================================
;; READ-ONLY FUNCTIONS
;; =========================================================================
(define-read-only (get-total-gms)
(ok (var-get total-gms))
)
(define-read-only (get-user-gm (user principal))
(ok (map-get? UserGM user))
)
(define-read-only (get-user-streak (user principal))
(match (map-get? UserStreak user)
streak-data (ok streak-data)
(ok {
current-streak: u0,
last-gm-block: u0,
total-gms: u0,
longest-streak: u0
})
)
)
;; Calculate the current effective streak (accounting for missed days)
(define-read-only (get-effective-streak (user principal))
(match (map-get? UserStreak user)
streak-data
(let (
(blocks-since-last (- stacks-block-height (get last-gm-block streak-data)))
)
;; If more than STREAK_WINDOW blocks have passed, streak is broken
(if (> blocks-since-last STREAK_WINDOW)
(ok u0)
(ok (get current-streak streak-data))
)
)
(ok u0)
)
)
;; Get the NFT price for a user based on their streak
(define-read-only (get-nft-price (user principal))
(let (
(effective-streak (unwrap-panic (get-effective-streak user)))
)
(if (>= effective-streak STREAK_THRESHOLD)
(ok NFT_FEE_STREAK)
(ok NFT_FEE_NORMAL)
)
)
)
;; Check if user qualifies for streak discount
(define-read-only (has-streak-discount (user principal))
(let (
(effective-streak (unwrap-panic (get-effective-streak user)))
)
(ok (>= effective-streak STREAK_THRESHOLD))
)
)
;; =========================================================================
;; PRIVATE FUNCTIONS
;; =========================================================================
;; Calculate new streak based on time since last GM
(define-private (calculate-new-streak (last-block uint) (current-streak uint))
(let (
(blocks-since-last (- stacks-block-height last-block))
)
;; First time (last-block is 0)
(if (is-eq last-block u0)
u1
;; Within streak window: increment
(if (<= blocks-since-last STREAK_WINDOW)
(+ current-streak u1)
;; Streak broken: reset to 1
u1
)
)
)
)
;; =========================================================================
;; PUBLIC FUNCTIONS
;; =========================================================================
(define-public (say-gm)
(let (
(sender tx-sender)
(current-count (var-get total-gms))
(user-data (default-to
{ current-streak: u0, last-gm-block: u0, total-gms: u0, longest-streak: u0 }
(map-get? UserStreak sender)
))
(new-streak (calculate-new-streak
(get last-gm-block user-data)
(get current-streak user-data)
))
(new-longest (if (> new-streak (get longest-streak user-data))
new-streak
(get longest-streak user-data)
))
)
;; Charge GM fee
(try! (stx-transfer? GM_FEE sender CONTRACT_OWNER))
;; Update user streak data
(map-set UserStreak sender {
current-streak: new-streak,
last-gm-block: stacks-block-height,
total-gms: (+ (get total-gms user-data) u1),
longest-streak: new-longest
})
;; Update legacy map
(map-set UserGM sender "gm")
;; Increment global counter
(var-set total-gms (+ current-count u1))
(ok {
gm-count: (+ current-count u1),
streak: new-streak,
longest-streak: new-longest
})
)
)
(define-public (say-gm-message (message (string-ascii 64)))
(let (
(sender tx-sender)
(current-count (var-get total-gms))
(user-data (default-to
{ current-streak: u0, last-gm-block: u0, total-gms: u0, longest-streak: u0 }
(map-get? UserStreak sender)
))
(new-streak (calculate-new-streak
(get last-gm-block user-data)
(get current-streak user-data)
))
(new-longest (if (> new-streak (get longest-streak user-data))
new-streak
(get longest-streak user-data)
))
)
;; Charge GM fee
(try! (stx-transfer? GM_FEE sender CONTRACT_OWNER))
;; Update user streak data
(map-set UserStreak sender {
current-streak: new-streak,
last-gm-block: stacks-block-height,
total-gms: (+ (get total-gms user-data) u1),
longest-streak: new-longest
})
;; Update legacy map with custom message
(map-set UserGM sender message)
;; Increment global counter
(var-set total-gms (+ current-count u1))
(ok {
gm-count: (+ current-count u1),
streak: new-streak,
message: message
})
)
)
(define-public (mint-gm-nft)
(let (
(next-id (+ (var-get last-token-id) u1))
(buyer tx-sender)
(effective-streak (unwrap-panic (get-effective-streak buyer)))
(nft-fee (if (>= effective-streak STREAK_THRESHOLD)
NFT_FEE_STREAK
NFT_FEE_NORMAL
))
)
;; Charge appropriate fee based on streak
(try! (stx-transfer? nft-fee buyer CONTRACT_OWNER))
;; Mint NFT
(try! (nft-mint? gm-nft next-id buyer))
;; Update counters
(var-set last-token-id next-id)
(var-set total-gms (+ (var-get total-gms) u1))
(ok {
token-id: next-id,
fee-paid: nft-fee,
had-discount: (>= effective-streak STREAK_THRESHOLD)
})
)
)
;; =========================================================================
;; ADMIN FUNCTIONS
;; =========================================================================
(define-public (set-base-uri (new-uri (string-ascii 256)))
(begin
(asserts! (is-eq tx-sender CONTRACT_OWNER) ERR_NOT_AUTHORIZED)
(var-set base-uri new-uri)
(ok true)
)
)