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const fetchRelationship = (attempt, userId, store) => new Promise((resolve, reject) => {
setTimeout(() => {
store.state.api.backendInteractor.fetchUserRelationship({ id: userId })
.then((relationship) => {
store.commit('updateUserRelationship', [relationship])
return relationship
})
.then((relationship) => resolve([relationship.following, relationship.requested, relationship.locked, attempt]))
.catch((e) => reject(e))
}, 500)
}).then(([following, sent, locked, attempt]) => {
if (!following && !(locked && sent) && attempt <= 3) {
// If we BE reports that we still not following that user - retry,
// increment attempts by one
fetchRelationship(++attempt, userId, store)
}
})
export const requestFollow = (userId, store) => new Promise((resolve, reject) => {
store.state.api.backendInteractor.followUser({ id: userId })
.then((updated) => {
store.commit('updateUserRelationship', [updated])
if (updated.following || (updated.locked && updated.requested)) {
// If we get result immediately or the account is locked, just stop.
resolve()
return
}
// But usually we don't get result immediately, so we ask server
// for updated user profile to confirm if we are following them
// Sometimes it takes several tries. Sometimes we end up not following
// user anyway, probably because they locked themselves and we
// don't know that yet.
// Recursive Promise, it will call itself up to 3 times.
return fetchRelationship(1, updated, store)
.then(() => {
resolve()
})
})
})
export const requestUnfollow = (userId, store) => new Promise((resolve, reject) => {
store.state.api.backendInteractor.unfollowUser({ id: userId })
.then((updated) => {
store.commit('updateUserRelationship', [updated])
resolve({
updated
})
})
})
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