feat: comment fee control

api/paidAction/itemCreate.js

@@ -13,9 +13,33 @@ export const paymentMethods = [
   PAID_ACTION_PAYMENT_METHODS.PESSIMISTIC
 ]
 
+export const DEFAULT_ITEM_COST = 1000n
+
+export async function getBaseCost ({ models, bio, parentId, subName }) {
+  if (bio) return DEFAULT_ITEM_COST
+
+  if (parentId) {
+    // the subname is stored in the root item of the thread
+    const parent = await models.item.findFirst({
+      where: { id: Number(parentId) },
+      include: {
+        root: { include: { sub: true } },
+        sub: true
+      }
+    })
+
+    const root = parent.root ?? parent
+
+    if (!root.sub) return DEFAULT_ITEM_COST
+    return satsToMsats(root.sub.replyCost)
+  }
+
+  const sub = await models.sub.findUnique({ where: { name: subName } })
+  return satsToMsats(sub.baseCost)
+}
+
 export async function getCost ({ subName, parentId, uploadIds, boost = 0, bio }, { models, me }) {
-  const sub = (parentId || bio) ? null : await models.sub.findUnique({ where: { name: subName } })
-  const baseCost = sub ? satsToMsats(sub.baseCost) : 1000n
+  const baseCost = await getBaseCost({ models, bio, parentId, subName })
 
   // cost = baseCost * 10^num_items_in_10m * 100 (anon) or 1 (user) + upload fees + boost
   const [{ cost }] = await models.$queryRaw`

api/typeDefs/sub.js

@@ -16,6 +16,7 @@ export default gql`
 
   extend type Mutation {
     upsertSub(oldName: String, name: String!, desc: String, baseCost: Int!,
+      replyCost: Int!,
       postTypes: [String!]!,
       billingType: String!, billingAutoRenew: Boolean!,
       moderated: Boolean!, nsfw: Boolean!): SubPaidAction!
@@ -24,7 +25,7 @@ export default gql`
     toggleSubSubscription(name: String!): Boolean!
     transferTerritory(subName: String!, userName: String!): Sub
     unarchiveTerritory(name: String!, desc: String, baseCost: Int!,
-      postTypes: [String!]!,
+      replyCost: Int!, postTypes: [String!]!,
       billingType: String!, billingAutoRenew: Boolean!,
       moderated: Boolean!, nsfw: Boolean!): SubPaidAction!
   }
@@ -45,6 +46,7 @@ export default gql`
     billedLastAt: Date!
     billPaidUntil: Date
     baseCost: Int!
+    replyCost: Int!
     status: String!
     moderated: Boolean!
     moderatedCount: Int!

components/reply.js

@@ -161,7 +161,7 @@ export default forwardRef(function Reply ({
       {reply &&
         <div className={styles.reply}>
           <FeeButtonProvider
-            baseLineItems={postCommentBaseLineItems({ baseCost: 1, comment: true, me: !!me })}
+            baseLineItems={postCommentBaseLineItems({ baseCost: sub?.replyCost ?? 1, comment: true, me: !!me })}
             useRemoteLineItems={postCommentUseRemoteLineItems({ parentId: item.id, me: !!me })}
           >
             <Form

components/territory-form.js

@@ -91,6 +91,7 @@ export default function TerritoryForm ({ sub }) {
           name: sub?.name || '',
           desc: sub?.desc || '',
           baseCost: sub?.baseCost || 10,
+          replyCost: sub?.replyCost || 1,
           postTypes: sub?.postTypes || POST_TYPES,
           billingType: sub?.billingType || 'MONTHLY',
           billingAutoRenew: sub?.billingAutoRenew || false,
@@ -234,6 +235,13 @@ export default function TerritoryForm ({ sub }) {
           header={<div style={{ fontWeight: 'bold', fontSize: '92%' }}>options</div>}
           body={
             <>
+              <Input
+                label='reply cost'
+                name='replyCost'
+                type='number'
+                required
+                append={<InputGroup.Text className='text-monospace'>sats</InputGroup.Text>}
+              />
               <BootstrapForm.Label>moderation</BootstrapForm.Label>
               <Checkbox
                 inline

components/territory-header.js

@@ -57,9 +57,16 @@ export function TerritoryInfo ({ sub }) {
           <span> on </span>
           <span className='fw-bold'>{new Date(sub.createdAt).toDateString()}</span>
         </div>
-        <div className='text-muted'>
-          <span>post cost </span>
-          <span className='fw-bold'>{numWithUnits(sub.baseCost)}</span>
+        <div className='d-flex'>
+          <div className='text-muted'>
+            <span>post cost </span>
+            <span className='fw-bold'>{numWithUnits(sub.baseCost)}</span>
+          </div>
+          <span className='px-1'> \ </span>
+          <div className='text-muted'>
+            <span>reply cost </span>
+            <span className='fw-bold'>{numWithUnits(sub.replyCost)}</span>
+          </div>
         </div>
         <TerritoryBillingLine sub={sub} />
       </CardFooter>

fragments/items.js

@@ -35,6 +35,7 @@ export const ITEM_FIELDS = gql`
       meMuteSub
       meSubscription
       nsfw
+      replyCost
     }
     otsHash
     position

fragments/paidAction.js

@@ -264,10 +264,10 @@ export const UPDATE_COMMENT = gql`
 export const UPSERT_SUB = gql`
   ${PAID_ACTION}
   mutation upsertSub($oldName: String, $name: String!, $desc: String, $baseCost: Int!,
-    $postTypes: [String!]!, $billingType: String!,
+    $replyCost: Int!, $postTypes: [String!]!, $billingType: String!,
     $billingAutoRenew: Boolean!, $moderated: Boolean!, $nsfw: Boolean!) {
       upsertSub(oldName: $oldName, name: $name, desc: $desc, baseCost: $baseCost,
-        postTypes: $postTypes, billingType: $billingType,
+        replyCost: $replyCost, postTypes: $postTypes, billingType: $billingType,
         billingAutoRenew: $billingAutoRenew, moderated: $moderated, nsfw: $nsfw) {
       result {
         name
@@ -279,10 +279,10 @@ export const UPSERT_SUB = gql`
 export const UNARCHIVE_TERRITORY = gql`
   ${PAID_ACTION}
   mutation unarchiveTerritory($name: String!, $desc: String, $baseCost: Int!,
-    $postTypes: [String!]!, $billingType: String!,
+    $replyCost: Int!, $postTypes: [String!]!, $billingType: String!,
     $billingAutoRenew: Boolean!, $moderated: Boolean!, $nsfw: Boolean!) {
       unarchiveTerritory(name: $name, desc: $desc, baseCost: $baseCost,
-        postTypes: $postTypes, billingType: $billingType,
+        replyCost: $replyCost, postTypes: $postTypes, billingType: $billingType,
         billingAutoRenew: $billingAutoRenew, moderated: $moderated, nsfw: $nsfw) {
       result {
         name

fragments/subs.js

@@ -25,6 +25,7 @@ export const SUB_FIELDS = gql`
     billedLastAt
     billPaidUntil
     baseCost
+    replyCost
     userId
     desc
     status

lib/validate.js

@@ -317,6 +317,9 @@ export function territorySchema (args) {
     baseCost: intValidator
       .min(1, 'must be at least 1')
       .max(100000, 'must be at most 100k'),
+    replyCost: intValidator
+      .min(1, 'must be at least 1')
+      .max(100000, 'must be at most 100k'),
     postTypes: array().of(string().oneOf(POST_TYPES)).min(1, 'must support at least one post type'),
     billingType: string().required('required').oneOf(TERRITORY_BILLING_TYPES, 'required'),
     nsfw: boolean()

prisma/migrations/20241227132729_comment_fee_control/migration.sql

@@ -0,0 +1,2 @@
+-- AlterTable
+ALTER TABLE "Sub" ADD COLUMN     "replyCost" INTEGER NOT NULL DEFAULT 1;

prisma/schema.prisma

@@ -737,6 +737,7 @@ model Sub {
   rankingType      RankingType
   allowFreebies    Boolean     @default(true)
   baseCost         Int         @default(1)
+  replyCost        Int         @default(1)
   rewardsPct       Int         @default(50)
   desc             String?
   status           Status      @default(ACTIVE)