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Add support for checking for genesis block

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This commit is contained in:
Garrett Mills 2021-04-10 03:51:21 -05:00
parent c067216af3
commit 5dc6db0b8e
Signed by: garrettmills
GPG Key ID: D2BF5FBA8298F246
1 changed files with 7 additions and 2 deletions
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9
src/app/units/Blockchain.ts
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@ -29,6 +29,12 @@ export class Block implements BlockResourceItem {
this.proof = rec.proof;
}
/** Returns true if this is the genesis block. */
isGenesis() {
// FIXME sign this with GPG to verify that it came from here
return this.uuid === '0000'
}
/** Generate the hash for this block. */
hash() {
return crypto.createHash('sha256')
@ -119,8 +125,7 @@ export class Blockchain extends Unit {
public async validate(chain: Block[]) {
const blocks = collect<Block>(chain)
return blocks.every((block: Block, idx: number) => {
if ( idx === 0 ) return true; // TODO handle genesis
if ( idx === 0 ) return block.isGenesis()
return block.lastBlockHash === blocks.at(idx)!.hash()
})
}