<%
'=======================================================================================================================
' STATS REPOSITORY
' Read-only counts for the dashboard.
'=======================================================================================================================
Class StatsRepository_Class

    ' Dictionary of counts about the list itself
    Public Function ListCounts()
        Dim rs, d
        Set d = CreateObject("Scripting.Dictionary")
        Set rs = Db_Query( _
            "SELECT COUNT(*) AS total, " & _
            "Sum(IIf(status = 'removed', 1, 0)) AS removed, " & _
            "Sum(IIf(status <> 'removed' AND (is_customer = 0 OR is_customer IS NULL), 1, 0)) AS prospects, " & _
            "Sum(IIf(status <> 'removed' AND is_customer = 1, 1, 0)) AS customers, " & _
            "Sum(IIf(status <> 'removed' AND (is_customer = 0 OR is_customer IS NULL) AND last_contacted_at IS NULL, 1, 0)) AS never_contacted, " & _
            "Sum(IIf(status = 'new', 1, 0)) AS st_new, " & _
            "Sum(IIf(status = 'contacted', 1, 0)) AS st_contacted, " & _
            "Sum(IIf(status = 'follow_up', 1, 0)) AS st_follow_up, " & _
            "Sum(IIf(status <> 'removed' AND next_action_date < Date(), 1, 0)) AS overdue, " & _
            "Sum(IIf(status <> 'removed' AND next_action_date = Date(), 1, 0)) AS due_today, " & _
            "Sum(IIf(status <> 'removed' AND next_action_date > Date() AND next_action_date <= DateAdd('d', 7, Date()), 1, 0)) AS this_week, " & _
            "Sum(IIf(status <> 'removed' AND phone_digits IS NULL, 1, 0)) AS no_phone " & _
            "FROM businesses", Array())
        Dim i
        For i = 0 To rs.Fields.Count - 1
            d(rs.Fields(i).Name) = N(rs.Fields(i).Value)
        Next
        rs.Close
        d("active") = d("total") - d("removed")
        Set ListCounts = d
    End Function

    ' Counts of logged contacts: today, last 7 days (including today), last 30 days
    Public Function ActivityCounts()
        Dim rs, d
        Set d = CreateObject("Scripting.Dictionary")
        Set rs = Db_Query( _
            "SELECT Sum(IIf(contacted_at = Date(), 1, 0)) AS n_today, " & _
            "Sum(IIf(contacted_at >= DateAdd('d', -6, Date()), 1, 0)) AS n_week, " & _
            "Sum(IIf(contacted_at >= DateAdd('d', -29, Date()), 1, 0)) AS n_month, " & _
            "COUNT(*) AS everything FROM interactions", Array())
        d("today") = N(rs("n_today")) : d("week") = N(rs("n_week")) : d("month") = N(rs("n_month")) : d("all") = N(rs("everything"))
        rs.Close
        Set ActivityCounts = d
    End Function

    ' Contacts per day for the last `days` days, oldest first: list of Array(date, count) including zero days
    Public Function DailyActivity(days)
        Dim rs, counts, list, i, dt, key
        Set counts = CreateObject("Scripting.Dictionary")
        Set rs = Db_Query("SELECT contacted_at, COUNT(*) FROM interactions WHERE contacted_at >= DateAdd('d', " & CLng(1 - days) & ", Date()) GROUP BY contacted_at", Array())
        Do While Not rs.EOF
            If Not IsNull(rs(0)) Then counts(CStr(CLng(CDate(rs(0))))) = CLng(rs(1))
            rs.MoveNext
        Loop
        rs.Close
        Set list = CreateObject("Scripting.Dictionary")
        For i = days - 1 To 0 Step -1
            dt = Date - i
            key = CStr(CLng(dt))
            If counts.Exists(key) Then list.Add list.Count, Array(dt, counts(key)) Else list.Add list.Count, Array(dt, 0)
        Next
        Set DailyActivity = list
    End Function

    ' Last 30 days grouped by a column ("method" or "outcome"): list of Array(key, count), biggest first
    Public Function ActivityBy(column)
        Dim rs, list
        If column <> "method" And column <> "outcome" Then Err.Raise 5, "StatsRepository.ActivityBy", "Unsupported column"
        Set list = CreateObject("Scripting.Dictionary")
        Set rs = Db_Query("SELECT " & column & ", COUNT(*) AS n FROM interactions WHERE contacted_at >= DateAdd('d', -29, Date()) GROUP BY " & column & " ORDER BY COUNT(*) DESC", Array())
        Do While Not rs.EOF
            list.Add list.Count, Array(rs(0) & "", CLng(rs(1)))
            rs.MoveNext
        Loop
        rs.Close
        Set ActivityBy = list
    End Function

    ' Biggest industries (active businesses only) with how many have been contacted at least once
    Public Function TopIndustries(maxRows)
        Dim rs, list
        Set list = CreateObject("Scripting.Dictionary")
        Set rs = Db_Query( _
            "SELECT TOP " & CLng(maxRows) & " i.id, i.name, COUNT(b.id) AS n, Sum(IIf(b.last_contacted_at IS NULL, 0, 1)) AS contacted " & _
            "FROM industries i INNER JOIN businesses b ON b.industry_id = i.id WHERE b.status <> 'removed' " & _
            "GROUP BY i.id, i.name ORDER BY COUNT(b.id) DESC, i.name", Array())
        Do While Not rs.EOF
            list.Add list.Count, Array(CLng(rs(0)), rs(1) & "", CLng(rs(2)), N(rs(3)))
            rs.MoveNext
        Loop
        rs.Close
        Set TopIndustries = list
    End Function

    Public Function RecentImports(maxRows)
        Dim rs, list
        Set list = CreateObject("Scripting.Dictionary")
        Set rs = Db_Query("SELECT TOP " & CLng(maxRows) & " id, file_name, imported_at, rows_read, rows_added FROM import_batches ORDER BY id DESC", Array())
        Do While Not rs.EOF
            list.Add list.Count, Array(CLng(rs(0)), rs(1) & "", rs(2), N(rs(3)), N(rs(4)))
            rs.MoveNext
        Loop
        rs.Close
        Set RecentImports = list
    End Function

    ' Null -> 0
    Private Function N(v)
        If IsNull(v) Or IsEmpty(v) Then N = 0 Else N = CLng(v)
    End Function
End Class

Dim StatsRepository_Class__Singleton
Function StatsRepository()
    If IsEmpty(StatsRepository_Class__Singleton) Then
        Set StatsRepository_Class__Singleton = New StatsRepository_Class
    End If
    Set StatsRepository = StatsRepository_Class__Singleton
End Function
%>