O custo de não conhecer o MongoDB (V5RX) - Parte 2

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const buildId = (key: string, date: Date): Buffer => {
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  const [YYYY, MM] = date.toISOString().split();
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  return Buffer.from(`${key}${YYYY}${MM}`, 'hex');
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};

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const getQQ = (date: Date): string => {
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  const month = Number(getMM(date));
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  if (month >= 1 && month <= 3) return '01';
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  else if (month >= 4 && month <= 6) return '02';
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  else if (month >= 7 && month <= 9) return '03';
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  else return '04';
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};
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const buildId = (key: string, date: Date): Buffer => {
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  const [YYYY] = date.toISOString().split('-');
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  const QQ = getQQ(date);
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  return Buffer.from(`${key}${YYYY}${QQ}`, 'hex');
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};

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type SchemaV5R0 = {
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  _id: Buffer;
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  items: Array<{
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    date: Date;
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    a?: number;
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    n?: number;
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    p?: number;
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    r?: number;
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  }>;
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};

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const opeartion = {
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  updateOne: {
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    filter: { _id: buildId(event.key, event.date) },
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    update: {
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      $push: {
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        items: {
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          date: event.date,
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          a: event.approved,
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          n: event.noFunds,
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          p: event.pending,
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          r: event.rejected,
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        },
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      },
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    },
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    upsert: true,
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  },
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};

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const pipeline = [
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  {
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    $match: {
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      _id: {
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        $gte: buildId(request.key, Date.now() - oneYear),
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        $lte: buildId(request.key, Date.now()),
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      },
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    },
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  },
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  {
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    $unwind: {
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      path: '$items',
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    },
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  },
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  {
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    $match: {
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      'items.date': { $gte: Date.now() - oneYear, $lt: Date.now() },
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    },
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  },
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  {
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    $group: {
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      _id: null,
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      approved: { $sum: '$items.a' },
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      noFunds: { $sum: '$items.n' },
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      pending: { $sum: '$items.p' },
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      rejected: { $sum: '$items.r' },
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    },
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  },
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  { $project: { _id: 0 } },
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];

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type SchemaV5R0 = {
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  _id: Buffer;
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  items: Array<{
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    date: Date;
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    a?: number;
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    n?: number;
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    p?: number;
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    r?: number;
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  }>;
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};

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const sumIfItemExists = itemsArray.buildResultIfItemExists(event);
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const returnItemsOrCreateNew = itemsArray.buildItemsOrCreateNew(event);
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const operation = {
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  updateOne: {
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    filter: {
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      _id: buildId(event.key, event.date),
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    },
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    update: [
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      { $set: { result: sumIfItemExists } },
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      { $set: { items: returnItemsOrCreateNew } },
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      { $unset: ['result'] },
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    ],
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    upsert: true,
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  },
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};

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const result = items.reduce(
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  (accumulator, element) => {
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    if (element.date === event.date) {
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      element.a += event.a;
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      element.n += event.n;
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      element.p += event.p;
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      element.r += event.r;
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      accumulator.found = true;
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    }
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    accumulator.items.push(element);
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    return accumulator;
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  },
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  { found: false, items: [] }
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);

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let items = [];
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if (result.found == true) {
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  items = result.items;
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} else {
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  items = result.items.concat([event]);
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}

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const pipeline = [
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  {
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    $match: {
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      _id: {
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        $gte: buildId(request.key, Date.now() - oneYear),
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        $lte: buildId(request.key, Date.now()),
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      },
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    },
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  },
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  {
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    $unwind: {
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      path: '$items',
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    },
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  },
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  {
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    $match: {
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      'items.date': { $gte: Date.now() - oneYear, $lt: Date.now() },
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    },
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  },
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  {
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    $group: {
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      _id: null,
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      approved: { $sum: '$items.a' },
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      noFunds: { $sum: '$items.n' },
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      pending: { $sum: '$items.p' },
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      rejected: { $sum: '$items.r' },
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    },
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  },
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  { $project: { _id: 0 } },
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];

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type SchemaV5R0 = {
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  _id: Buffer;
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  items: Array<{
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    date: Date;
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    a?: number;
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    n?: number;
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    p?: number;
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    r?: number;
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  }>;
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};

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const sumIfItemExists = itemsArray.buildResultIfItemExists(event);
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const returnItemsOrCreateNew = itemsArray.buildItemsOrCreateNew(event);
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const operation = {
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  updateOne: {
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    filter: {
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      _id: buildId(event.key, event.date),
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    },
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    update: [
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      { $set: { result: sumIfItemExists } },
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      { $set: { items: returnItemsOrCreateNew } },
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      { $unset: ['result'] },
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    ],
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    upsert: true,
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  },
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};

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const pipeline = [
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  { $match: docsFromKeyBetweenDate },
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  { $addFields: itemsReduceAccumulator },
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  { $group: groupSumStatus },
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  { $project: { _id: 0 } },
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];

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const totals = items.reduce(
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  (accumulator, element) => {
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    if (element.date > (Date.now() - oneYear) && element.date < Date.now()) {
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      accumulator.a += element.a;
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      accumulator.n += element.n;
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      accumulator.p += element.p;
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      accumulator.r += element.r;
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    }
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    return accumulator;
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  },
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  { a: 0, n: 0, p: 0, r: 0 }
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);

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const groupSumStatus = {
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  _id: null,
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  approved: { $sum: '$items.a' },
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  noFunds: { $sum: '$items.n' },
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  pending: { $sum: '$items.p' },
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  rejected: { $sum: '$items.r' },
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};

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type SchemaV5R1 = {
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  _id: Buffer;
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  totals: {
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    a?: number;
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    n?: number;
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    p?: number;
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    r?: number;
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  };
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  items: Array<{
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    date: Date;
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    a?: number;
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    n?: number;
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    p?: number;
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    r?: number;
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  }>;
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};

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const newReportFields = itemsArray.buildNewTotals(event);
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const sumIfItemExists = itemsArray.buildResultIfItemExists(event);
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const returnItemsOrCreateNew = itemsArray.buildItemsOrCreateNew(event);
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const operation = {
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  updateOne: {
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    filter: {
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      _id: buildId(event.key, event.date),
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    },
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    update: [
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      { $set: newReportFields },
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      { $set: { result: sumIfItemExists } },
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      { $set: { items: returnItemsOrCreateNew } },
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      { $unset: ['result'] },
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    ],
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    upsert: true,
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  },
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};

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if (totals.a != null) totals.a += event.a;
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else totals.a = event.a;
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if (totals.n != null) totals.n += event.n;
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else totals.n = event.n;
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if (totals.p != null) totals.p += event.p;
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else totals.p = event.p;
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if (totals.r != null) totals.r += event.r;
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else totals.r = event.r;

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const pipeline = [
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  { $match: docsFromKeyBetweenDate },
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  { $addFields: itemsReduceAccumulator },
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  { $group: groupSumStatus },
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  { $project: { _id: 0 } },
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];

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let totals;
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if (documentQuarterWithinReportDateRage) {
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  totals = document.totals;
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} else {
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  totals = document.items.reduce(
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    (accumulator, element) => {
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      if (element.date > Date.now() - oneYear && element.date < Date.now()) {
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        accumulator.a += element.a;
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        accumulator.n += element.n;
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        accumulator.p += element.p;
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        accumulator.r += element.r;
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      }
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      return accumulator;
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    },
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    { a: 0, n: 0, p: 0, r: 0 }
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  );
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}