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const fetchUser = (attempt, user, store) => new Promise((resolve, reject) => {
setTimeout(() => {
store.state.api.backendInteractor.fetchUser({ id: user.id })
.then((user) => store.commit('addNewUsers', [user]))
.then(() => resolve([user.following, attempt]))
.catch((e) => reject(e))
}, 500)
}).then(([following, attempt]) => {
if (!following && attempt <= 3) {
// If we BE reports that we still not following that user - retry,
// increment attempts by one
return fetchUser(++attempt, user, store)
} else {
// If we run out of attempts, just return whatever status is.
return following
}
})
export const requestFollow = (user, store) => new Promise((resolve, reject) => {
store.state.api.backendInteractor.followUser(user.id)
.then((updated) => {
store.commit('updateUserRelationship', [updated])
// For locked users we just mark it that we sent the follow request
if (updated.locked) {
resolve({ sent: true })
}
if (updated.following) {
// If we get result immediately, just stop.
resolve({ sent: false })
}
// 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 fetchUser(1, user, store)
.then((following) => {
if (following) {
// We confirmed and everything's good.
resolve({ sent: false })
} else {
// If after all the tries, just treat it as if user is locked
resolve({ sent: false })
}
})
})
})
export const requestUnfollow = (user, store) => new Promise((resolve, reject) => {
store.state.api.backendInteractor.unfollowUser(user.id)
.then((updated) => {
store.commit('updateUserRelationship', [updated])
resolve({
updated
})
})
})
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