// SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Commercial
// SPDX-FileCopyrightText: 2025-2026 Christian Galo

package server

import (
	"bytes"
	"html/template"
	"io/fs"
	"strings"
	"testing"

	"git.coopcloud.tech/wiki-cafe/member-console/internal/embeds"
	"git.coopcloud.tech/wiki-cafe/member-console/internal/forms"
	"git.coopcloud.tech/wiki-cafe/member-console/internal/web"
)

func renderPlanLaddersPageBody(t *testing.T, data PlanLaddersData) string {
	t.Helper()
	partialsSub, err := fs.Sub(embeds.Templates, "templates/partials")
	if err != nil {
		t.Fatalf("fs.Sub partials: %v", err)
	}
	tmpl := template.New("operator").Funcs(template.FuncMap{
		"renderBody": func(string, any) (template.HTML, error) { return "", nil },
		"routeURL":   web.RouteURL,
		"fieldErr": func(activeForm, expectedForm, activeScope, expectedScope string, errs web.FieldErrors, field string) string {
			return ""
		},
		"stripeEntityURL": func(string, string) string { return "" },
		"helpIcon":        helpIcon,
	})
	tmpl, err = web.ParseUIPartials(template.Must(tmpl.ParseFS(partialsSub, "operator_*.html")))
	if err != nil {
		t.Fatalf("ParseFS: %v", err)
	}
	var buf bytes.Buffer
	if err := tmpl.ExecuteTemplate(&buf, "operator_plan_ladders.html", data); err != nil {
		t.Fatalf("ExecuteTemplate: %v", err)
	}
	return buf.String()
}

// TestCreatePlanLadderFormCollectsNameOnly covers plan-ladder-management
// ("Operator creates a plan ladder") after entity-keys retired the
// ladder key: the create form asks for the display name and the description
// and collects nothing else that identifies the ladder, so there is no
// permanent-after-creation value left to disclose (the "Irreversibility is
// disclosed at creation time" requirement was removed with the key). The
// page also carries no "Key" vocabulary for ladders (ui-vocabulary); the
// retired word is covered by the embeds vocabulary guard.
func TestCreatePlanLadderFormCollectsNameOnly(t *testing.T) {
	// The create form lives on its own page now (design D20, round 4),
	// rendering the declaration operator.plan-ladder (form-library) unbound.
	body := renderOperatorPartial(t, "operator_plan_ladder_new.html", PlanLadderNewData{
		Form: planLadderCreateForm(forms.NewValues(), nil),
	})
	if !strings.Contains(body, `data-form="operator.plan-ladder"`) {
		t.Errorf("expected the create form to render the declaration, got: %s", body)
	}
	if !strings.Contains(body, `name="name"`) {
		t.Errorf("expected the create form to collect the display name, got: %s", body)
	}
	if !strings.Contains(body, `name="description"`) {
		t.Errorf("expected the create form to collect the description, got: %s", body)
	}
	for _, gone := range []string{`id="ladderKey"`, `name="ladder_key"`, "data-key-from", "seeds and scripts find the ladder by it"} {
		if strings.Contains(body, gone) {
			t.Errorf("expected the create form to carry no %q, got: %s", gone, body)
		}
	}
}

// TestPlanLaddersListDeleteConsequenceCopy covers plan-ladder-management
// ("Destructive ladder controls disclose live-use consequences inline",
// revised by maintainer 2026-08-23): a ladder row with active positions
// renders its Delete control DISABLED on the same row as Manage, with the
// blocked reason as the wrapping tooltip; a ladder with no active positions
// gets the live confirm-modal Delete and no blocked claim.
func TestPlanLaddersListDeleteConsequenceCopy(t *testing.T) {
	body := renderPlanLaddersPageBody(t, PlanLaddersData{
		Ladders: []PlanLadderViewModel{
			{PlanLadderID: "l-occupied", Name: "Hosting", ActiveAttachmentCount: 4},
			{PlanLadderID: "l-empty", Name: "Legacy", ActiveAttachmentCount: 0},
		},
	})

	if !strings.Contains(body, `title="4 organization(s) hold a position; deletion is blocked until none remain."`) {
		t.Errorf("expected the blocked reason as the disabled Delete control's tooltip, got: %s", body)
	}
	occupiedIdx := strings.Index(body, "l-occupied")
	emptyIdx := strings.Index(body, "l-empty")
	if occupiedIdx == -1 || emptyIdx == -1 {
		t.Fatal("expected both ladder rows to render")
	}
	occupiedRow := body[occupiedIdx:emptyIdx]
	if !strings.Contains(occupiedRow, `disabled aria-describedby="delete-ladder-reason-l-occupied">Delete</button>`) {
		t.Errorf("occupied ladder's Delete must render disabled via the shared disabledControl part, got row: %s", occupiedRow)
	}
	if strings.Contains(occupiedRow, "data-bs-target=\"#confirmActionModal\"") {
		t.Errorf("occupied ladder must not offer the confirm-modal Delete")
	}
	if strings.Contains(body[emptyIdx:], "organization(s) hold a position") {
		t.Errorf("ladder with no active attachments must not render the blocked claim")
	}
	if !strings.Contains(body[emptyIdx:], "data-bs-target=\"#confirmActionModal\"") {
		t.Errorf("empty ladder must keep the live confirm-modal Delete")
	}
}