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Merge pull request #56 from onflow/Aliserag-patch-2
Update EmojiNFT.cdc to Cadence 1.0
2 parents c1a6bf8 + 2a59f91 commit 7c0d483

1 file changed

Lines changed: 119 additions & 125 deletions

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  • submissions/0x17b3b1e6b16965f3/Week3/app/contracts

‎submissions/0x17b3b1e6b16965f3/Week3/app/contracts/EmojiNFT.cdc‎

Lines changed: 119 additions & 125 deletions
Original file line numberDiff line numberDiff line change
@@ -1,144 +1,138 @@
1-
pub contract EmojiNFT {
2-
pub event NFTMinted(id: UInt64, owner: Address, emojiCollage: String)
3-
pub event NFTTransferred(id: UInt64, from: Address, to: Address)
4-
pub event CollectionCreated(owner: Address)
5-
6-
pub struct Metadata {
7-
pub let name: String
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pub let description: String
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pub let image: String
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pub let attributes: {String: String}
11-
pub let createdAt: UFix64
12-
13-
init(name: String, description: String, image: String, attributes: {String: String}) {
14-
self.name = name
15-
self.description = description
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self.image = image
17-
self.attributes = attributes
18-
self.createdAt = getCurrentBlock().timestamp
1+
access(all) contract EmojiNFT {
2+
3+
access(all) event NFTMinted(id: UInt64, owner: Address, emojiCollage: String)
4+
access(all) event NFTTransferred(id: UInt64, from: Address, to: Address)
5+
access(all) event CollectionCreated(owner: Address)
6+
7+
access(all) struct Metadata {
8+
access(all) let name: String
9+
access(all) let description: String
10+
access(all) let image: String
11+
access(all) let attributes: {String: String}
12+
access(all) let createdAt: UFix64
13+
14+
init(name: String, description: String, image: String, attributes: {String: String}) {
15+
self.name = name
16+
self.description = description
17+
self.image = image
18+
self.attributes = attributes
19+
self.createdAt = getCurrentBlock().timestamp
20+
}
1921
}
20-
}
21-
22-
pub resource NFT {
23-
pub let id: UInt64
24-
pub let emojiCollage: String
25-
pub let metadata: Metadata
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pub let creator: Address
27-
pub let royaltyPercentage: UFix64
28-
29-
init(id: UInt64, emojiCollage: String, metadata: Metadata, creator: Address, royaltyPercentage: UFix64) {
30-
self.id = id
31-
self.emojiCollage = emojiCollage
32-
self.metadata = metadata
33-
self.creator = creator
34-
self.royaltyPercentage = royaltyPercentage
22+
23+
access(all) resource NFT {
24+
access(all) let id: UInt64
25+
access(all) let emojiCollage: String
26+
access(all) let metadata: Metadata
27+
access(all) let creator: Address
28+
access(all) let royaltyPercentage: UFix64
29+
30+
init(id: UInt64, emojiCollage: String, metadata: Metadata, creator: Address, royaltyPercentage: UFix64) {
31+
self.id = id
32+
self.emojiCollage = emojiCollage
33+
self.metadata = metadata
34+
self.creator = creator
35+
self.royaltyPercentage = royaltyPercentage
36+
}
3537
}
36-
}
3738

38-
pub resource Collection {
39-
pub var ownedNFTs: @{UInt64: NFT}
40-
pub let owner: Address
39+
access(all) resource Collection {
40+
access(all) var ownedNFTs: @{UInt64: NFT}
41+
access(all) let owner: Address
4142

42-
init(owner: Address) {
43-
self.ownedNFTs = {}
44-
self.owner = owner
45-
emit CollectionCreated(owner: owner)
46-
}
43+
init(owner: Address) {
44+
self.ownedNFTs <- {}
45+
self.owner = owner
46+
emit CollectionCreated(owner: owner)
47+
}
48+
49+
access(all) fun deposit(token: @NFT) {
50+
self.ownedNFTs[token.id] <-! token
51+
}
52+
53+
access(all) fun withdraw(id: UInt64): @NFT {
54+
let token <- self.ownedNFTs.remove(key: id) ?? panic("NFT not found")
55+
return <- token
56+
}
4757

48-
pub fun deposit(token: @NFT) {
49-
self.ownedNFTs[token.id] = token
58+
access(all) view fun getNFTs(): [NFT] {
59+
return self.ownedNFTs.values
60+
}
61+
62+
access(all) view fun getNFT(id: UInt64): &NFT? {
63+
return &self.ownedNFTs[id] as &NFT?
64+
}
5065
}
5166

52-
pub fun withdraw(id: UInt64): @NFT {
53-
let token = self.ownedNFTs.remove(key: id) ?? panic("NFT not found")
54-
return token
67+
access(all) resource interface CollectionPublic {
68+
access(all) fun deposit(token: @NFT)
69+
access(all) view fun getNFTs(): [NFT]
70+
access(all) view fun getNFT(id: UInt64): &NFT?
5571
}
5672

57-
pub fun getNFTs(): [NFT] {
58-
return self.ownedNFTs.values
73+
access(all) fun createEmptyCollection(): @Collection {
74+
let ownerAddress = getAccount(0x0).address // Replace with authorized account
75+
return <- create Collection(owner: ownerAddress)
5976
}
6077

61-
pub fun getNFT(id: UInt64): &NFT? {
62-
return &self.ownedNFTs[id] as &NFT?
78+
access(all) fun mintNFT(
79+
emojiCollage: String,
80+
name: String,
81+
description: String,
82+
image: String,
83+
attributes: {String: String},
84+
royaltyPercentage: UFix64
85+
): @NFT {
86+
let id = self.nextID
87+
self.nextID = self.nextID + 1
88+
89+
let metadata = Metadata(
90+
name: name,
91+
description: description,
92+
image: image,
93+
attributes: attributes
94+
)
95+
96+
let nft <- create NFT(
97+
id: id,
98+
emojiCollage: emojiCollage,
99+
metadata: metadata,
100+
creator: getAccount(0x0).address, // Replace with authorized account
101+
royaltyPercentage: royaltyPercentage
102+
)
103+
104+
emit NFTMinted(id: id, owner: getAccount(0x0).address, emojiCollage: emojiCollage)
105+
106+
return <- nft
63107
}
64-
}
65108

66-
pub resource interface CollectionPublic {
67-
pub fun deposit(token: @NFT)
68-
pub fun getNFTs(): [NFT]
69-
pub fun getNFT(id: UInt64): &NFT?
70-
}
109+
access(all) fun transferNFT(collection: &Collection, id: UInt64, recipient: Address) {
110+
let token <- collection.withdraw(id: id)
111+
let recipientCollection = getAccount(recipient)
112+
.capabilities
113+
.borrow<&Collection>(/public/EmojiNFTCollection)
114+
?? panic("Collection not found")
115+
116+
recipientCollection.deposit(token: <- token)
71117

72-
pub resource CollectionPublicImpl: CollectionPublic {
73-
pub fun deposit(token: @NFT) {
74-
self.ownedNFTs[token.id] = token
118+
emit NFTTransferred(id: id, from: getAccount(0x0).address, to: recipient)
75119
}
76120

77-
pub fun getNFTs(): [NFT] {
78-
return self.ownedNFTs.values
121+
access(all) view fun getNFTMetadata(id: UInt64): Metadata? {
122+
let collection = getAccount(0x0)
123+
.capabilities
124+
.borrow<&Collection>(/public/EmojiNFTCollection)
125+
?? panic("Collection not found")
126+
127+
let nft = collection.getNFT(id: id)
128+
return nft?.metadata
79129
}
80130

81-
pub fun getNFT(id: UInt64): &NFT? {
82-
return &self.ownedNFTs[id] as &NFT?
131+
access(all) var nextID: UInt64
132+
access(all) var totalSupply: UInt64
133+
134+
init() {
135+
self.nextID = 1
136+
self.totalSupply = 0
83137
}
84-
}
85-
86-
pub fun createEmptyCollection(): @Collection {
87-
return create Collection(owner: self.account.address)
88-
}
89-
90-
pub fun mintNFT(
91-
emojiCollage: String,
92-
name: String,
93-
description: String,
94-
image: String,
95-
attributes: {String: String},
96-
royaltyPercentage: UFix64
97-
): @NFT {
98-
let id = self.nextID
99-
self.nextID = self.nextID + 1
100-
101-
let metadata = Metadata(
102-
name: name,
103-
description: description,
104-
image: image,
105-
attributes: attributes
106-
)
107-
108-
let nft = create NFT(
109-
id: id,
110-
emojiCollage: emojiCollage,
111-
metadata: metadata,
112-
creator: self.account.address,
113-
royaltyPercentage: royaltyPercentage
114-
)
115-
116-
emit NFTMinted(id: id, owner: self.account.address, emojiCollage: emojiCollage)
117-
return nft
118-
}
119-
120-
pub fun transferNFT(collection: &Collection, id: UInt64, recipient: Address) {
121-
let token = collection.withdraw(id: id)
122-
let recipientCollection = getAccount(recipient).getCapability(/public/EmojiNFTCollection)
123-
.borrow<&Collection>() ?? panic("Collection not found")
124-
125-
recipientCollection.deposit(token: token)
126-
emit NFTTransferred(id: id, from: self.account.address, to: recipient)
127-
}
128-
129-
pub fun getNFTMetadata(id: UInt64): Metadata? {
130-
let collection = self.account.getCapability(/public/EmojiNFTCollection)
131-
.borrow<&Collection>() ?? panic("Collection not found")
132-
133-
let nft = collection.getNFT(id: id)
134-
return nft?.metadata
135-
}
136-
137-
pub var nextID: UInt64
138-
pub var totalSupply: UInt64
139-
140-
init() {
141-
self.nextID = 1
142-
self.totalSupply = 0
143-
}
144-
}
138+
}

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