import { timeUnitForRange, whenRange } from '../../lib/time'

const PLACEHOLDERS_NUM = 616

export function interval (when) {
  switch (when) {
    case 'week':
      return '1 week'
    case 'month':
      return '1 month'
    case 'year':
      return '1 year'
    case 'forever':
      return null
    default:
      return '1 day'
  }
}

export function withClause (range) {
  const unit = timeUnitForRange(range)

  return `
    WITH range_values AS (
      SELECT date_trunc('${unit}', $1) as minval,
             date_trunc('${unit}', $2) as maxval
    ),
    times AS (
      SELECT generate_series(minval, maxval, interval '1 ${unit}') as time
      FROM range_values
    )
  `
}

export function intervalClause (range, table) {
  const unit = timeUnitForRange(range)

  return `date_trunc('${unit}', "${table}".created_at)  >= date_trunc('${unit}', $1) AND date_trunc('${unit}', "${table}".created_at) <= date_trunc('${unit}', $2) `
}

export function viewIntervalClause (range, view) {
  return `"${view}".day >= date_trunc('day', timezone('America/Chicago', $1)) AND "${view}".day <= date_trunc('day', timezone('America/Chicago', $2)) `
}

export default {
  Query: {
    registrationGrowth: async (parent, { when, from, to }, { models }) => {
      const range = whenRange(when, from, to)

      if (when !== 'day') {
        return await models.$queryRawUnsafe(`
          SELECT date_trunc('${timeUnitForRange(range)}', day) as time, json_build_array(
            json_build_object('name', 'referrals', 'value', sum(referrals)),
            json_build_object('name', 'organic', 'value', sum(organic))
          ) AS data
          FROM reg_growth_days
          WHERE ${viewIntervalClause(range, 'reg_growth_days')}
          GROUP BY time
          ORDER BY time ASC`, ...range)
      }

      return await models.$queryRawUnsafe(
        `${withClause(range)}
        SELECT time, json_build_array(
          json_build_object('name', 'referrals', 'value', count("referrerId")),
          json_build_object('name', 'organic', 'value', count(users.id) FILTER(WHERE id > ${PLACEHOLDERS_NUM}) - count("referrerId"))
        ) AS data
        FROM times
        LEFT JOIN users ON ${intervalClause(range, 'users')} AND time = date_trunc('${timeUnitForRange(range)}', created_at)
        GROUP BY time
        ORDER BY time ASC`, ...range)
    },
    spenderGrowth: async (parent, { when, to, from }, { models }) => {
      const range = whenRange(when, from, to)

      if (when !== 'day') {
        return await models.$queryRawUnsafe(`
          SELECT date_trunc('${timeUnitForRange(range)}', day) as time, json_build_array(
            json_build_object('name', 'any', 'value', floor(avg("any"))),
            json_build_object('name', 'jobs', 'value', floor(avg(jobs))),
            json_build_object('name', 'boost', 'value', floor(avg(boost))),
            json_build_object('name', 'fees', 'value', floor(avg(fees))),
            json_build_object('name', 'zaps', 'value', floor(avg(tips))),
            json_build_object('name', 'donation', 'value', floor(avg(donations))),
            json_build_object('name', 'territories', 'value', floor(avg(territories)))
          ) AS data
          FROM spender_growth_days
          WHERE ${viewIntervalClause(range, 'spender_growth_days')}
          GROUP BY time
          ORDER BY time ASC`, ...range)
      }

      return await models.$queryRawUnsafe(
        `${withClause(range)}
        SELECT time, json_build_array(
          json_build_object('name', 'any', 'value', count(DISTINCT "userId")),
          json_build_object('name', 'jobs', 'value', count(DISTINCT "userId") FILTER (WHERE act = 'STREAM')),
          json_build_object('name', 'boost', 'value', count(DISTINCT "userId") FILTER (WHERE act = 'BOOST')),
          json_build_object('name', 'fees', 'value', count(DISTINCT "userId") FILTER (WHERE act = 'FEE')),
          json_build_object('name', 'zaps', 'value', count(DISTINCT "userId") FILTER (WHERE act = 'TIP')),
          json_build_object('name', 'donation', 'value', count(DISTINCT "userId") FILTER (WHERE act = 'DONATION')),
          json_build_object('name', 'territories', 'value', count(DISTINCT "userId") FILTER (WHERE act = 'TERRITORY'))
        ) AS data
        FROM times
        LEFT JOIN
        ((SELECT "ItemAct".created_at, "userId", act::text as act
          FROM "ItemAct"
          WHERE ${intervalClause(range, 'ItemAct')})
        UNION ALL
        (SELECT created_at, "userId", 'DONATION' as act
          FROM "Donation"
          WHERE ${intervalClause(range, 'Donation')})
        UNION ALL
        (SELECT created_at, "userId", 'TERRITORY' as act
          FROM "SubAct"
          WHERE type = 'BILLING' AND ${intervalClause(range, 'SubAct')})
        ) u ON time = date_trunc('${timeUnitForRange(range)}', u.created_at)
        GROUP BY time
        ORDER BY time ASC`, ...range)
    },
    itemGrowth: async (parent, { when, to, from }, { models }) => {
      const range = whenRange(when, from, to)

      if (when !== 'day') {
        return await models.$queryRawUnsafe(`
          SELECT date_trunc('${timeUnitForRange(range)}', day) as time, json_build_array(
            json_build_object('name', 'posts', 'value', sum(posts)),
            json_build_object('name', 'comments', 'value', sum(comments)),
            json_build_object('name', 'jobs', 'value', sum(jobs)),
            json_build_object('name', 'comments/posts', 'value', ROUND(sum(comments)/GREATEST(sum(posts), 1), 2))
          ) AS data
          FROM item_growth_days
          WHERE ${viewIntervalClause(range, 'item_growth_days')}
          GROUP BY time
          ORDER BY time ASC`, ...range)
      }

      return await models.$queryRawUnsafe(
        `${withClause(range)}
        SELECT time, json_build_array(
          json_build_object('name', 'comments', 'value', count("parentId")),
          json_build_object('name', 'jobs', 'value', count("subName") FILTER (WHERE "subName" = 'jobs')),
          json_build_object('name', 'posts', 'value', count("Item".id)-count("parentId")-(count("subName") FILTER (WHERE "subName" = 'jobs'))),
          json_build_object('name', 'comments/posts', 'value', ROUND(count("parentId")/GREATEST(count("Item".id)-count("parentId"), 1), 2))
        ) AS data
        FROM times
        LEFT JOIN "Item" ON ${intervalClause(range, 'Item')} AND time = date_trunc('${timeUnitForRange(range)}', created_at)
        GROUP BY time
        ORDER BY time ASC`, ...range)
    },
    spendingGrowth: async (parent, { when, to, from }, { models }) => {
      const range = whenRange(when, from, to)

      if (when !== 'day') {
        return await models.$queryRawUnsafe(`
          SELECT date_trunc('${timeUnitForRange(range)}', day) as time, json_build_array(
            json_build_object('name', 'jobs', 'value', sum(jobs)),
            json_build_object('name', 'boost', 'value', sum(boost)),
            json_build_object('name', 'fees', 'value', sum(fees)),
            json_build_object('name', 'zaps', 'value', sum(tips)),
            json_build_object('name', 'donations', 'value', sum(donations)),
            json_build_object('name', 'territories', 'value', sum(territories))
          ) AS data
          FROM spending_growth_days
          WHERE ${viewIntervalClause(range, 'spending_growth_days')}
          GROUP BY time
          ORDER BY time ASC`, ...range)
      }

      return await models.$queryRawUnsafe(
        `${withClause(range)}
        SELECT time, json_build_array(
          json_build_object('name', 'jobs', 'value', coalesce(floor(sum(CASE WHEN act = 'STREAM' THEN msats ELSE 0 END)/1000),0)),
          json_build_object('name', 'boost', 'value', coalesce(floor(sum(CASE WHEN act = 'BOOST' THEN msats ELSE 0 END)/1000),0)),
          json_build_object('name', 'fees', 'value', coalesce(floor(sum(CASE WHEN act NOT IN ('BOOST', 'TIP', 'STREAM', 'DONATION', 'REVENUE') THEN msats ELSE 0 END)/1000),0)),
          json_build_object('name', 'zaps', 'value', coalesce(floor(sum(CASE WHEN act = 'TIP' THEN msats ELSE 0 END)/1000),0)),
          json_build_object('name', 'donations', 'value', coalesce(floor(sum(CASE WHEN act = 'DONATION' THEN msats ELSE 0 END)/1000),0)),
          json_build_object('name', 'territories', 'value', coalesce(floor(sum(CASE WHEN act = 'REVENUE' THEN msats ELSE 0 END)/1000),0))
        ) AS data
        FROM times
        LEFT JOIN
        ((SELECT "ItemAct".created_at, msats, act::text as act
          FROM "ItemAct"
          WHERE ${intervalClause(range, 'ItemAct')})
        UNION ALL
        (SELECT created_at, sats * 1000 as msats, 'DONATION' as act
          FROM "Donation"
          WHERE ${intervalClause(range, 'Donation')})
        UNION ALL
        (SELECT created_at, msats, 'REVENUE' as act
          FROM "SubAct"
          WHERE type = 'BILLING' AND ${intervalClause(range, 'SubAct')})
        ) u ON time = date_trunc('${timeUnitForRange(range)}', u.created_at)
        GROUP BY time
        ORDER BY time ASC`, ...range)
    },
    stackerGrowth: async (parent, { when, to, from }, { models }) => {
      const range = whenRange(when, from, to)

      if (when !== 'day') {
        return await models.$queryRawUnsafe(`
          SELECT date_trunc('${timeUnitForRange(range)}', day) as time, json_build_array(
            json_build_object('name', 'any', 'value', floor(avg("any"))),
            json_build_object('name', 'posts', 'value', floor(avg(posts))),
            json_build_object('name', 'comments', 'value', floor(floor(avg(comments)))),
            json_build_object('name', 'rewards', 'value', floor(avg(rewards))),
            json_build_object('name', 'referrals', 'value', floor(avg(referrals))),
            json_build_object('name', 'territories', 'value', floor(avg(territories)))
          ) AS data
          FROM stackers_growth_days
          WHERE ${viewIntervalClause(range, 'stackers_growth_days')}
          GROUP BY time
          ORDER BY time ASC`, ...range)
      }

      return await models.$queryRawUnsafe(
        `${withClause(range)}
        SELECT time, json_build_array(
          json_build_object('name', 'any', 'value', count(distinct user_id)),
          json_build_object('name', 'posts', 'value', count(distinct user_id) FILTER (WHERE type = 'POST')),
          json_build_object('name', 'comments', 'value', count(distinct user_id) FILTER (WHERE type = 'COMMENT')),
          json_build_object('name', 'rewards', 'value', count(distinct user_id) FILTER (WHERE type = 'EARN')),
          json_build_object('name', 'referrals', 'value', count(distinct user_id) FILTER (WHERE type = 'REFERRAL')),
          json_build_object('name', 'territories', 'value', count(distinct user_id) FILTER (WHERE type = 'REVENUE'))
        ) AS data
        FROM times
        LEFT JOIN
        ((SELECT "ItemAct".created_at, "Item"."userId" as user_id, CASE WHEN "Item"."parentId" IS NULL THEN 'POST' ELSE 'COMMENT' END as type
          FROM "ItemAct"
          JOIN "Item" on "ItemAct"."itemId" = "Item".id
          WHERE ${intervalClause(range, 'ItemAct')} AND "ItemAct".act = 'TIP')
        UNION ALL
        (SELECT created_at, "userId" as user_id, 'EARN' as type
          FROM "Earn"
          WHERE ${intervalClause(range, 'Earn')})
        UNION ALL
          (SELECT created_at, "userId" as user_id, 'REVENUE' as type
            FROM "SubAct"
            WHERE type = 'REVENUE' AND ${intervalClause(range, 'SubAct')})
        UNION ALL
          (SELECT created_at, "referrerId" as user_id, 'REFERRAL' as type
            FROM "ReferralAct"
            WHERE ${intervalClause(range, 'ReferralAct')})) u ON time = date_trunc('${timeUnitForRange(range)}', u.created_at)
        GROUP BY time
        ORDER BY time ASC`, ...range)
    },
    stackingGrowth: async (parent, { when, to, from }, { models }) => {
      const range = whenRange(when, from, to)

      if (when !== 'day') {
        return await models.$queryRawUnsafe(`
          SELECT date_trunc('${timeUnitForRange(range)}', day) as time, json_build_array(
            json_build_object('name', 'rewards', 'value', sum(rewards)),
            json_build_object('name', 'posts', 'value', sum(posts)),
            json_build_object('name', 'comments', 'value', sum(comments)),
            json_build_object('name', 'referrals', 'value', sum(referrals)),
            json_build_object('name', 'territories', 'value', sum(territories))
          ) AS data
          FROM stacking_growth_days
          WHERE ${viewIntervalClause(range, 'stacking_growth_days')}
          GROUP BY time
          ORDER BY time ASC`, ...range)
      }

      return await models.$queryRawUnsafe(
        `${withClause(range)}
        SELECT time, json_build_array(
          json_build_object('name', 'rewards', 'value', coalesce(floor(sum(airdrop)/1000),0)),
          json_build_object('name', 'posts', 'value', coalesce(floor(sum(post)/1000),0)),
          json_build_object('name', 'comments', 'value', coalesce(floor(sum(comment)/1000),0)),
          json_build_object('name', 'referrals', 'value', coalesce(floor(sum(referral)/1000),0)),
          json_build_object('name', 'territories', 'value', coalesce(floor(sum(revenue)/1000),0))
        ) AS data
        FROM times
        LEFT JOIN
        ((SELECT "ItemAct".created_at, 0 as airdrop,
          CASE WHEN "Item"."parentId" IS NULL THEN 0 ELSE "ItemAct".msats END as comment,
          CASE WHEN "Item"."parentId" IS NULL THEN "ItemAct".msats ELSE 0 END as post,
          0 as referral, 0 as revenue
          FROM "ItemAct"
          JOIN "Item" on "ItemAct"."itemId" = "Item".id
          WHERE ${intervalClause(range, 'ItemAct')} AND "ItemAct".act = 'TIP')
        UNION ALL
          (SELECT created_at, 0 as airdrop, 0 as post, 0 as comment, msats as referral, 0 as revenue
            FROM "ReferralAct"
            WHERE ${intervalClause(range, 'ReferralAct')})
        UNION ALL
          (SELECT created_at, 0 as airdrop, 0 as post, 0 as comment, 0 as referral, msats as revenue
            FROM "SubAct"
            WHERE type = 'REVENUE' AND ${intervalClause(range, 'SubAct')})
        UNION ALL
        (SELECT created_at, msats as airdrop, 0 as post, 0 as comment, 0 as referral, 0 as revenue
          FROM "Earn"
          WHERE ${intervalClause(range, 'Earn')})) u ON time = date_trunc('${timeUnitForRange(range)}', u.created_at)
        GROUP BY time
        ORDER BY time ASC`, ...range)
    }
  }
}