package pkg import ( "context" "fmt" "github.com/julienschmidt/httprouter" "html/template" "math" "net/http" "strconv" "strings" "time" ) type ExpenseEntry struct { Slug string InvoiceDate time.Time InvoiceNumber string Amount string InvoicerName string OriginalFileName string Tags []string } type expensesIndexPage struct { Expenses []*ExpenseEntry Filters *expenseFilterForm } func IndexExpenses(w http.ResponseWriter, r *http.Request, _ httprouter.Params) { conn := getConn(r) locale := getLocale(r) company := mustGetCompany(r) filters := newExpenseFilterForm(r.Context(), conn, locale, company) if err := filters.Parse(r); err != nil { http.Error(w, err.Error(), http.StatusBadRequest) return } page := &expensesIndexPage{ Expenses: mustCollectExpenseEntries(r.Context(), conn, company, filters), Filters: filters, } mustRenderMainTemplate(w, r, "expenses/index.gohtml", page) } func mustCollectExpenseEntries(ctx context.Context, conn *Conn, company *Company, filters *expenseFilterForm) []*ExpenseEntry { args := []interface{}{company.Id} where := []string{"expense.company_id = $1"} appendWhere := func(expression string, value interface{}) { args = append(args, value) where = append(where, fmt.Sprintf(expression, len(args))) } maybeAppendWhere := func(expression string, value string, conv func(string) interface{}) { if value != "" { if conv == nil { appendWhere(expression, value) } else { appendWhere(expression, conv(value)) } } } maybeAppendWhere("contact_id = $%d", filters.Customer.String(), func(v string) interface{} { customerId, _ := strconv.Atoi(filters.Customer.Selected[0]) return customerId }) maybeAppendWhere("invoice_number = $%d", filters.InvoiceNumber.String(), nil) maybeAppendWhere("invoice_date >= $%d", filters.FromDate.String(), nil) maybeAppendWhere("invoice_date <= $%d", filters.ToDate.String(), nil) if len(filters.Tags.Tags) > 0 { if filters.TagsCondition.Selected == "and" { appendWhere("expense.tags @> $%d", filters.Tags) } else { appendWhere("expense.tags && $%d", filters.Tags) } } rows := conn.MustQuery(ctx, fmt.Sprintf(` select expense.slug , invoice_date , invoice_number , to_price(amount, decimal_digits) , contact.business_name , coalesce(attachment.original_filename, '') , expense.tags from expense left join expense_attachment as attachment using (expense_id) join contact using (contact_id) join currency using (currency_code) where (%s) order by invoice_date `, strings.Join(where, ") AND (")), args...) defer rows.Close() var entries []*ExpenseEntry for rows.Next() { entry := &ExpenseEntry{} if err := rows.Scan(&entry.Slug, &entry.InvoiceDate, &entry.InvoiceNumber, &entry.Amount, &entry.InvoicerName, &entry.OriginalFileName, &entry.Tags); err != nil { panic(err) } entries = append(entries, entry) } if rows.Err() != nil { panic(rows.Err()) } return entries } func ServeExpenseForm(w http.ResponseWriter, r *http.Request, params httprouter.Params) { locale := getLocale(r) conn := getConn(r) company := mustGetCompany(r) form := newExpenseForm(r.Context(), conn, locale, company) slug := params[0].Value if slug == "new" { w.WriteHeader(http.StatusOK) form.InvoiceDate.Val = time.Now().Format("2006-01-02") mustRenderNewExpenseForm(w, r, form) return } if !form.MustFillFromDatabase(r.Context(), conn, slug) { http.NotFound(w, r) return } w.WriteHeader(http.StatusOK) mustRenderEditExpenseForm(w, r, slug, form) } func mustRenderNewExpenseForm(w http.ResponseWriter, r *http.Request, form *expenseForm) { locale := getLocale(r) form.Invoicer.EmptyLabel = gettext("Select a contact.", locale) mustRenderMainTemplate(w, r, "expenses/new.gohtml", form) } func mustRenderEditExpenseForm(w http.ResponseWriter, r *http.Request, slug string, form *expenseForm) { page := &editExpensePage{ Slug: slug, Form: form, } mustRenderMainTemplate(w, r, "expenses/edit.gohtml", page) } type editExpensePage struct { Slug string Form *expenseForm } type expenseForm struct { locale *Locale company *Company Invoicer *SelectField InvoiceNumber *InputField InvoiceDate *InputField Tax *SelectField Amount *InputField File *FileField Tags *TagsField } func newExpenseForm(ctx context.Context, conn *Conn, locale *Locale, company *Company) *expenseForm { return &expenseForm{ locale: locale, company: company, Invoicer: &SelectField{ Name: "invoicer", Label: pgettext("input", "Contact", locale), Required: true, Options: mustGetContactOptions(ctx, conn, company), }, InvoiceNumber: &InputField{ Name: "invoice_number", Label: pgettext("input", "Invoice number", locale), Type: "text", }, InvoiceDate: &InputField{ Name: "invoice_date", Label: pgettext("input", "Invoice Date", locale), Required: true, Type: "date", }, Tax: &SelectField{ Name: "tax", Label: pgettext("input", "Taxes", locale), Multiple: true, Options: mustGetTaxOptions(ctx, conn, company), }, Amount: &InputField{ Name: "amount", Label: pgettext("input", "Amount", locale), Type: "number", Required: true, Attributes: []template.HTMLAttr{ `min="0"`, template.HTMLAttr(fmt.Sprintf(`step="%v"`, company.MinCents())), }, }, File: &FileField{ Name: "file", Label: pgettext("input", "File", locale), MaxSize: 1 << 20, }, Tags: &TagsField{ Name: "tags", Label: pgettext("input", "Tags", locale), }, } } func (form *expenseForm) Parse(r *http.Request) error { if err := r.ParseMultipartForm(form.File.MaxSize); err != nil { return err } form.Invoicer.FillValue(r) form.InvoiceNumber.FillValue(r) form.InvoiceDate.FillValue(r) form.Tax.FillValue(r) form.Amount.FillValue(r) if err := form.File.FillValue(r); err != nil { return err } form.Tags.FillValue(r) return nil } func (form *expenseForm) Validate() bool { validator := newFormValidator() validator.CheckValidSelectOption(form.Invoicer, gettext("Selected contact is not valid.", form.locale)) validator.CheckValidDate(form.InvoiceDate, gettext("Invoice date must be a valid date.", form.locale)) validator.CheckValidSelectOption(form.Tax, gettext("Selected tax is not valid.", form.locale)) validator.CheckAtMostOneOfEachGroup(form.Tax, gettext("You can only select a tax of each class.", form.locale)) if validator.CheckRequiredInput(form.Amount, gettext("Amount can not be empty.", form.locale)) { validator.CheckValidDecimal(form.Amount, form.company.MinCents(), math.MaxFloat64, gettext("Amount must be a number greater than zero.", form.locale)) } validator.CheckValidSelectOption(form.Tax, gettext("Selected tax is not valid.", form.locale)) validator.CheckAtMostOneOfEachGroup(form.Tax, gettext("You can only select a tax of each class.", form.locale)) return validator.AllOK() } func (form *expenseForm) MustFillFromDatabase(ctx context.Context, conn *Conn, slug string) bool { return !notFoundErrorOrPanic(conn.QueryRow(ctx, ` select contact_id , invoice_number , invoice_date , to_price(amount, decimal_digits) , array_agg(tax_id) , tags from expense left join expense_tax using (expense_id) join currency using (currency_code) where expense.slug = $1 group by contact_id , invoice_number , invoice_date , amount , decimal_digits , tags `, slug).Scan( form.Invoicer, form.InvoiceNumber, form.InvoiceDate, form.Amount, form.Tax, form.Tags)) } func HandleAddExpense(w http.ResponseWriter, r *http.Request, _ httprouter.Params) { conn := getConn(r) locale := getLocale(r) company := mustGetCompany(r) form := newExpenseForm(r.Context(), conn, locale, company) if err := form.Parse(r); err != nil { http.Error(w, err.Error(), http.StatusBadRequest) return } if err := verifyCsrfTokenValid(r); err != nil { http.Error(w, err.Error(), http.StatusForbidden) return } if !form.Validate() { if !IsHTMxRequest(r) { w.WriteHeader(http.StatusUnprocessableEntity) } mustRenderNewExpenseForm(w, r, form) return } taxes := mustSliceAtoi(form.Tax.Selected) slug := conn.MustGetText(r.Context(), "", "select add_expense($1, $2, $3, $4, $5, $6, $7)", company.Id, form.InvoiceDate, form.Invoicer, form.InvoiceNumber, form.Amount, taxes, form.Tags) if len(form.File.Content) > 0 { conn.MustQuery(r.Context(), "select attach_to_expense($1, $2, $3, $4)", slug, form.File.OriginalFileName, form.File.ContentType, form.File.Content) } htmxRedirect(w, r, companyURI(company, "/expenses")) } func HandleUpdateExpense(w http.ResponseWriter, r *http.Request, params httprouter.Params) { conn := getConn(r) locale := getLocale(r) company := mustGetCompany(r) form := newExpenseForm(r.Context(), conn, locale, company) if err := form.Parse(r); err != nil { http.Error(w, err.Error(), http.StatusBadRequest) return } if err := verifyCsrfTokenValid(r); err != nil { http.Error(w, err.Error(), http.StatusForbidden) return } slug := params[0].Value if !form.Validate() { if !IsHTMxRequest(r) { w.WriteHeader(http.StatusUnprocessableEntity) } mustRenderEditExpenseForm(w, r, slug, form) return } taxes := mustSliceAtoi(form.Tax.Selected) if found := conn.MustGetText(r.Context(), "", "select edit_expense($1, $2, $3, $4, $5, $6, $7)", slug, form.InvoiceDate, form.Invoicer, form.InvoiceNumber, form.Amount, taxes, form.Tags); found == "" { http.NotFound(w, r) return } if len(form.File.Content) > 0 { conn.MustQuery(r.Context(), "select attach_to_expense($1, $2, $3, $4)", slug, form.File.OriginalFileName, form.File.ContentType, form.File.Content) } htmxRedirect(w, r, companyURI(company, "/expenses")) } type expenseFilterForm struct { locale *Locale company *Company Customer *SelectField InvoiceNumber *InputField FromDate *InputField ToDate *InputField Tags *TagsField TagsCondition *ToggleField } func newExpenseFilterForm(ctx context.Context, conn *Conn, locale *Locale, company *Company) *expenseFilterForm { return &expenseFilterForm{ locale: locale, company: company, Customer: &SelectField{ Name: "customer", Label: pgettext("input", "Customer", locale), EmptyLabel: gettext("All customers", locale), Options: mustGetContactOptions(ctx, conn, company), }, InvoiceNumber: &InputField{ Name: "number", Label: pgettext("input", "Invoice Number", locale), Type: "search", }, FromDate: &InputField{ Name: "from_date", Label: pgettext("input", "From Date", locale), Type: "date", }, ToDate: &InputField{ Name: "to_date", Label: pgettext("input", "To Date", locale), Type: "date", }, Tags: &TagsField{ Name: "tags", Label: pgettext("input", "Tags", locale), }, TagsCondition: &ToggleField{ Name: "tags_condition", Label: pgettext("input", "Tags Condition", locale), Selected: "and", FirstOption: &ToggleOption{ Value: "and", Label: pgettext("tag condition", "All", locale), Description: gettext("Invoices must have all the specified labels.", locale), }, SecondOption: &ToggleOption{ Value: "or", Label: pgettext("tag condition", "Any", locale), Description: gettext("Invoices must have at least one of the specified labels.", locale), }, }, } } func (form *expenseFilterForm) Parse(r *http.Request) error { if err := r.ParseForm(); err != nil { return err } form.Customer.FillValue(r) form.InvoiceNumber.FillValue(r) form.FromDate.FillValue(r) form.ToDate.FillValue(r) form.Tags.FillValue(r) form.TagsCondition.FillValue(r) return nil } func ServeEditExpenseTags(w http.ResponseWriter, r *http.Request, params httprouter.Params) { conn := getConn(r) locale := getLocale(r) company := getCompany(r) slug := params[0].Value form := newTagsForm(companyURI(company, "/expenses/"+slug+"/tags"), slug, locale) if notFoundErrorOrPanic(conn.QueryRow(r.Context(), `select tags from expense where slug = $1`, form.Slug).Scan(form.Tags)) { http.NotFound(w, r) return } mustRenderStandaloneTemplate(w, r, "tags/edit.gohtml", form) } func HandleUpdateExpenseTags(w http.ResponseWriter, r *http.Request, params httprouter.Params) { locale := getLocale(r) conn := getConn(r) company := getCompany(r) slug := params[0].Value form := newTagsForm(companyURI(company, "/expenses/"+slug+"/tags/edit"), slug, locale) if err := form.Parse(r); err != nil { http.Error(w, err.Error(), http.StatusBadRequest) return } if err := verifyCsrfTokenValid(r); err != nil { http.Error(w, err.Error(), http.StatusForbidden) return } if conn.MustGetText(r.Context(), "", "update expense set tags = $1 where slug = $2 returning slug", form.Tags, form.Slug) == "" { http.NotFound(w, r) } mustRenderStandaloneTemplate(w, r, "tags/view.gohtml", form) } func ServeExpenseAttachment(w http.ResponseWriter, r *http.Request, params httprouter.Params) { slug := params[0].Value conn := getConn(r) var contentType string var content []byte if notFoundErrorOrPanic(conn.QueryRow(r.Context(), ` select mime_type , content from expense join expense_attachment using (expense_id) where slug = $1 `, slug).Scan(&contentType, &content)) { http.NotFound(w, r) return } w.Header().Set("Content-Type", contentType) w.Header().Set("Content-Length", strconv.FormatInt(int64(len(content)), 10)) w.WriteHeader(http.StatusOK) w.Write(content) }