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 BrightInvoicesController - Summary & Response Structures

 File: SonWinCommonAPI/Controllers/BrightInvoicesController.cs

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 WHAT THE CONTROLLER DOES

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Exposes a single read-only endpoint that returns a customer's invoices within a date range.

The domain is SonWin billing: invoice header rows live in Sonlinc.AKOND, enriched with supply type (AUDEBFORS), PBSI payment rows (also in AKOND), and a "has a rendered PDF" existence check (AKONDDOC -> BDOC).

The result is mapped into the Bright-facing BrightInvoice model.


DEV info when running on local machine bypassing the Swagger UI:

Visibility/filtering is configuration-driven. Each filter toggle is resolved as "local appsettings config wins, otherwise defer to the company's BCHEC flag" (Sonlinc.BCHED, cached in memory).

The SQL is assembled from pure-SQL fragments so only the active clauses appear in the executed statement.

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 METHODS

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1) GetInvoices

   Route:    GET accounts/{accountId}/invoices

   Auth:     [Authorize] (class-level); [ApiController]

   Params:  

   Body:     none (GET)

   Returns: 

   What it does:

     Validates the customer and the input range, resolves the company's invoice visibility filters, runs the list query, and maps each row to a BrightInvoice.

     Returns the (possibly empty) list with 200.

     Validation that affects the result (all failures THROW -> surface as HTTP 500):


     Validation that affects the result (all surface as HTTP 500 with a message):


     InvoicesValidator.ValidateGetInvoicesInput  (invoked as "GetInvoices"):

       (A missing/unparseable date query param binds to DateTime.MinValue, which is below SQL Server's datetime min; the range check catches this up front to avoid a cryptic SQL error.)

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 FILTER RESOLUTION (InvoiceListFilters)

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Resolved in BrightInvoiceRepository.GetByCustomerAsync as "local appsettings config (Settings.Invoices:*) ?? company BCHEC flag".

The three UDSMARK visibility variants are independent and compose. Each active flag appends its own SQL clause; inactive flags add nothing (no runtime OR-gates).

Always-applied (Base query) filters, independent of the toggles above:

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 RESPONSE STRUCTURE (IEnumerable<BrightInvoice>)

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The endpoint returns a JSON array of invoice objects. Each object contains a nested `Info` array of supplementary key/value (or title/value) entries.

[
  {
    "Id":          <value>,    // Composite: $"{InstNr}-{ForbnNr}-{UdebNr}-{Id}" = AKOND.INSTNR-FORBNR-UDEBNR-REGNINGNR
    "ServiceId":   <value>,    // Data: AUDEBFORS.FORSYNINGSART (+AFREGNTYPE) via ForsyningsartMapper. El-only join => in practice "consumption_trade" or null (see limitations).
    "InvoiceDate": <value>,    // Data: AKOND.BILAGSDATO  (DateTimeOffset, UTC offset 0) | null
    "DueDate":     <value>,    // Data: AKOND.FORFDATO    (DateTimeOffset, UTC offset 0) | null
    "Period":      <value>,    // Derived from StartDate/EndDate month-span: "1month"/"2month"/"3month"/"6month"/"12month" (defaults to "1month" when dates missing or other span)
    "StartDate":   <value>,    // Data: AKOND.DATOFRA     (DateTimeOffset, UTC offset 0) | null
    "EndDate":     <value>,    // Data: AKOND.DATOTIL     (DateTimeOffset, UTC offset 0) | null
    "RemainingAmount": <value>,// Data: running account saldo (SUM of AKOND.KR up to this line) - NOT a per-invoice remaining figure.
    "TotalAmount": <value>,    // Data: AKOND.KR (decimal) | null
    "InvoiceStatus": <value>,  // Derived (see status logic below): one of cancelled / credited / paid / overdue / unpaid non-empty BDOC.PAYLOAD exists, else "missing"
     
     // Flat supplementary list; mostly DUPLICATES the structured fields above, as strings/dates.
    "Info": [                  
      { "Key": "invoiceNumber",   "Value": <Id> },        // Data: AKOND.REGNINGNR (string)
      { "Key": "invoiceDate",     "Value": <InvoiceDate> },// Data: AKOND.BILAGSDATO (DateTimeOffset|null)
      { "Key": "dueDate",         "Value": <DueDate> },    // Data: AKOND.FORFDATO (DateTimeOffset|null)
      { "Key": "totalAmount",     "Value": <TotalAmount> },// Data: AKOND.KR .ToString() | null
      { "Key": "period",          "Value": <Period> },     // Derived period string
      { "Key": "remainingAmount", "Value": <Saldo> },      // Data: running saldo .ToString() | null
      { "Key": "status",          "Value": <InvoiceStatus> },// Derived status string
      { "Key": "description",     "Value": <Tekst> },      // Data: AKOND.TEKST
      { "Title": "Tekst",         "Value": <Tekst> }       // Data: AKOND.TEKST (DUPLICATE of description,
                                                           //   sent via Title (untranslated) not Key)
      // NOTE: "ocr" key is NOT emitted (source field not yet identified - TODO)
    ]
  }
]

Field origin detail (top-level BrightInvoice): 

INVOICE STATUS LOGIC (MapInvoiceStatus, first match wins):

  1. KORTSTATUS = 99                       -> "cancelled"  (confirmed cancelled)
  2. TotalAmount (KR) < 0                   -> "credited"   (credit note)
  3. UDLIGNDATO set OR running saldo <= 0   -> "paid"       (account square through this line; balance-forward)
  4. DueDate (FORFDATO) in the past         -> "overdue"
  5. otherwise                              -> "unpaid"
  ('partly_paid' is intentionally never produced.)

PERIOD LOGIC (MapPeriod): month span = (EndDate - StartDate) in whole months;

(PBSI rows are negative), ISNULL(...,0). Not exposed as its own response field — only feeds RemainingAmount and the status derivation.