| state/obs.jsView |
|---|
| 1 | +var PullObv = require('pull-obv') |
| 2 | +var threadReduce = require('ssb-reduce-stream') |
| 3 | +var pull = require('pull-stream') |
| 4 | +const Next = require('pull-next') |
| 5 | + |
| 6 | +function isObject (o) { |
| 7 | + return 'object' === typeof o |
| 8 | +} |
| 9 | + |
| 10 | +exports.gives = { |
| 11 | + state: {obs: {threads: true}} |
| 12 | +} |
| 13 | + |
| 14 | +exports.needs = { |
| 15 | + message: {sync: {unbox: 'first'}}, |
| 16 | + sbot: {pull: {log: 'first'}} |
| 17 | +} |
| 18 | + |
| 19 | +exports.create = function (api) { |
| 20 | + |
| 21 | + var initial |
| 22 | + try { initial = JSON.parse(localStorage.threadsState) } |
| 23 | + catch (_) { } |
| 24 | + |
| 25 | + var lastTimestamp = initial ? initial.last : Date.now() |
| 26 | + var firstTimestamp = initial ? initial.last : Date.now() |
| 27 | + |
| 28 | + function unbox () { |
| 29 | + return pull( |
| 30 | + pull.map(function (data) { |
| 31 | + lastTimestamp = data.timestamp |
| 32 | + if(isObject(data.value.content)) return data |
| 33 | + return api.message.sync.unbox(data) |
| 34 | + }), |
| 35 | + pull.filter(Boolean) |
| 36 | + ) |
| 37 | + } |
| 38 | + |
| 39 | + var threadsObs = PullObv( |
| 40 | + threadReduce, |
| 41 | + pull( |
| 42 | + Next(function () { |
| 43 | + console.log('More', lastTimestamp) |
| 44 | + return api.sbot.pull.log({reverse: true, limit: 500, lt: lastTimestamp}) |
| 45 | + }), |
| 46 | + pull.through(function (data) { |
| 47 | + console.log(data.timestamp) |
| 48 | + lastTimestamp = data.timestamp |
| 49 | + }), |
| 50 | + unbox() |
| 51 | + ), |
| 52 | + |
| 53 | + initial |
| 54 | + ) |
| 55 | + |
| 56 | + threadsObs(function (threadsState) { |
| 57 | + if(threadsState.ended && threadsState.ended !== true) |
| 58 | + console.error('threadObs error:', threadsState.ended) |
| 59 | + }) |
| 60 | + |
| 61 | + var timer |
| 62 | + |
| 63 | + threadsObs(function (threadsState) { |
| 64 | + console.log(threadsState) |
| 65 | + clearTimeout(timer) |
| 66 | + setTimeout(function () { |
| 67 | + threadsState.last = lastTimestamp |
| 68 | + localStorage.threadsState = JSON.stringify(threadsState) |
| 69 | + }, 1000) |
| 70 | + }) |
| 71 | + |
| 72 | + |
| 73 | + |
| 74 | + |
| 75 | + |
| 76 | + |
| 77 | + |
| 78 | + |
| 79 | + |
| 80 | + |
| 81 | + |
| 82 | + |
| 83 | + |
| 84 | + |
| 85 | + |
| 86 | + return {state: {obs: {threads: function () { |
| 87 | + return threadsObs |
| 88 | + }}}} |
| 89 | + |
| 90 | +} |
| 91 | + |
| 92 | + |
| 93 | + |
| 94 | + |
| 95 | + |
| 96 | + |