(define-non-fungible-token boom uint)
(define-data-var last-id uint u0)
(define-data-var last-series-id uint u0)

(impl-trait 'SP2PABAF9FTAJYNFZH93XENAJ8FVY99RRM50D2JG9.nft-trait.nft-trait)

;; each nft id to series id
(define-map meta uint {series-id: uint, number: uint})


(define-map index-by-series-item
  (tuple
    (series-id uint)
    (number uint))
  uint)

(define-map series-meta uint
  {
    creator: principal,
    creator-name: (optional (tuple (namespace (buff 20)) (name (buff 48)))),
    series-name: (string-utf8 80),
    count: uint,
    uri: (string-ascii 256),
    mime-type: (string-ascii 129),
    hash: (buff 64)
  })

(define-private (owns-name (user principal) (username (tuple (namespace (buff 20)) (name (buff 48)))))
  (match (contract-call? 'SP000000000000000000002Q6VF78.bns name-resolve (get namespace username) (get name username))
    details (is-eq user (get owner details))
    error false
  )
)

(define-private (inc-last-series-id)
  (let ((series-id
    (+ u1 (var-get last-series-id))))
    (begin
      (var-set last-series-id series-id)
      series-id
    )))

(define-private (is-creator (creator principal)
  (creator-name (optional (tuple (namespace (buff 20)) (name (buff 48))))))
  (and
    (or (is-eq creator tx-sender) (is-eq creator contract-caller))
    (match creator-name
      username (owns-name creator username)
      true )))

(define-private (same-series-meta (series-id uint) (creator principal)
    (creator-name (optional (tuple (namespace (buff 20)) (name (buff 48)))))
    (series-name (string-utf8 80)) (uri (string-ascii 256)))

    (match (get-series-meta-raw? series-id)
      entry (and
              (or (is-eq creator tx-sender) (is-eq creator contract-caller))
              (is-eq creator (get creator entry))
              (is-eq creator-name (get creator-name entry))
              (is-eq series-name (get series-name entry))
              (is-eq uri (get uri entry)))
      false
    )
)

(define-private (update-series-meta
  (series-id uint)
  (creator principal)
  (creator-name (optional (tuple (namespace (buff 20)) (name (buff 48)))))
  (series-name (string-utf8 80))
  (uri (string-ascii 256))
  (mime-type (string-ascii 129))
  (hash (buff 64))
  (count uint)
)
  (match (map-get? series-meta series-id)
    entry (map-set series-meta series-id
      (merge entry {count: (+ count (get count entry)),}))
    (map-insert series-meta series-id
      {creator: creator,
      creator-name: creator-name,
      series-name: series-name,
      count: count,
      hash: hash,
      uri: uri,
      mime-type: mime-type})))




(define-private (mint-boom (index uint)
  (context {creator: principal, series-id: uint, index: uint, recipient: principal}))
  (let (
      (id (+ u1 (var-get last-id)))
      (series-id (get series-id context))
      (fold-index (get index context)))
    (unwrap-panic (nft-mint? boom id (get recipient context)))
    (asserts-panic (var-set last-id id))
    (asserts-panic
      ;; I use fold-index because I'm not sure
      ;; that the user would pass the copies
      ;; indices in correct order
      (map-insert meta id {number: fold-index, series-id: series-id}))
    (asserts-panic
      (map-insert index-by-series-item {series-id: series-id, number: fold-index} id))
    (print fold-index)

    (merge context {index: (+ u1 fold-index)})))

(define-public (mint-series
  (creator principal)
  (creator-name (optional (tuple (namespace (buff 20)) (name (buff 48)))))
  (existing-series-id (optional uint))
  (series-name (string-utf8 80))
  (series-uri (string-ascii 256))
  (series-mime-type (string-ascii 129))
  (hash (buff 64))
  (copies (list 7500 uint))
  (recipient (optional principal)))
  (let ((series-id (match existing-series-id
                      id (begin
                            (asserts! (same-series-meta id creator creator-name series-name series-uri) (err {kind: "permission-denied", code: u0}))
                            id)
                      (begin
                        (asserts! (is-creator creator creator-name) (err {kind: "not-creator", code: u1}))
                        (inc-last-series-id))))
          (series (get-series-meta-raw? series-id))
          (series-index (match series
            series-data (get count series-data)
            u0)))
    (update-series-meta series-id creator creator-name series-name series-uri series-mime-type hash (len copies))
    (let ((context
      (fold mint-boom copies {creator: creator, series-id: series-id, index: (+ u1 series-index), recipient: (default-to creator recipient)})))
      (ok {count: (+ series-index (len copies)), series-id: series-id}))))

;; error codes
;; (err u1) -- sender does not own the asset
;; (err u2) -- sender and recipient are the same principal
;; (err u3) -- asset identified by asset-identifier does not exist
;; (err u4) -- sender is not tx sender or contract caller
(define-public (transfer (id uint) (sender principal) (recipient principal))
  (if (or (is-eq sender tx-sender) (is-eq sender contract-caller))
    (match (nft-transfer? boom id sender recipient)
      success (ok success)
      error (err {kind: "nft-transfer-failed", code: error}))
    (err {kind: "permission-denied", code: u4})))

(define-public (burn (id uint))
  (match (get-owner-raw? id)
    owner (if (or (is-eq owner tx-sender) (is-eq owner contract-caller))
      (nft-burn? boom id owner)
      (err u4))
    (err u3)))

(define-read-only (get-owner (id uint))
  (ok (nft-get-owner? boom id)))

(define-read-only (get-owner-raw? (id uint))
  (nft-get-owner? boom id))

(define-read-only (get-boom-meta)
  {uri: "https://boom.money/images/boom10.png", name: "Boom Collectible", mime-type: "image/png"}
)

(define-read-only (get-series-meta-raw? (series-id uint))
    (map-get? series-meta series-id))

(define-read-only (get-meta? (id uint))
      (match (map-get? meta id)
        nft-meta
        (let (
          (series-id (get series-id nft-meta))
          (number (get number nft-meta))
        )
        (match (map-get? series-meta series-id)
          series
            (some {
              hash: (get hash series),
              mime-type: (get mime-type series),
              series-id: (get series-id nft-meta),
              uri: (get uri series),
              number: number
            })
          none))
        none)
    )


(define-read-only (get-meta-by-serial?
    (series-id uint)
    (number uint))
    (match (map-get? index-by-series-item {series-id: series-id, number: number})
      id
        (match (map-get? meta id)
          relation
          (let ((series (unwrap-panic (map-get? series-meta (get series-id relation)))))
            (some {
              hash: (get hash series),
              mime-type: (get mime-type series),
              number: (get number relation),
              series-id: series-id,
              uri: (get uri series)
            }))
          none)
      none))


(define-read-only  (get-last-token-id)
  (ok (var-get last-id)))

(define-read-only  (get-last-token-id-raw)
  (var-get last-id))

(define-read-only  (last-token-id)
  (ok (var-get last-id)))

(define-read-only (get-token-uri (nft-id uint))
  (let (
    (nft-series-id (get series-id (unwrap! (map-get? meta nft-id) (ok none))))
    (series-meta-data (map-get? series-meta nft-series-id))
  )
  (ok (get uri series-meta-data))))

(define-read-only  (last-token-id-raw)
  (var-get last-id))

(define-read-only (last-series-id-raw)
  (var-get last-series-id)
)

;; (define-read-only (get-meta-by-serial? (nft-id uint))
;;   (let (
;;     (nft-series-id (get series-id (unwrap! (map-get? meta nft-id) (ok none))))
;;     (series-meta-data (map-get? series-meta nft-series-id))
;;   )
;;   ()
;; )

(define-private (asserts-panic (value bool))
  (unwrap-panic (if value (some value) none)))