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import { Contact } from "lucide-react";
import { useCallback, useMemo, useState } from "react";
import { crmApi } from "../../lib/api";
import type { KanbanData, KanbanLead } from "../../lib/api/pro/crm";
import { parseCurrencyInput } from "../../lib/currency-utils";
import { queryKeys } from "../../lib/query-keys";
import { EmptyState } from "../ui/empty-state";
import { KanbanColumn } from "./KanbanColumn";
import { isTerminalStage } from "./lead-status";
import { LeadsTable } from "./LeadsTable";
import { MobileLeadList } from "./MobileLeadList";
import { StageChangeDialogs, type PendingDrop } from "./StageChangeDialogs";
/**
* The pipeline board — and, behind the ☰ switch, the same leads as rows.
*
* `.context/mockups/leads-board.html` prints the board as a fixed number of
* equal columns that SCROLL SIDEWAYS rather than wrap, "because a stage must
* never fall below another stage". That is why this is a `grid-flow-col` with
* an `auto-cols` track and not one of the design system's `grid-2`/`grid-3`
* helpers — the mockup carries the same page-local rule, under a comment
* saying "layout only: no new colour, no new radius, no new type size".
*
* This component owns ONE thing beyond layout: the stage-change mutation and
* its Won/Lost dialogs, because dropping a card is how a stage changes. The
* quick-note and quick-reminder dialogs are the page's, since the overdue band
* above the board opens the same note dialog and two owners would mean two
* dialogs.
*
* STAFF CANNOT MOVE A LEAD, so `canChangeStage` is threaded all the way to the
* card: no `draggable`, no drop target, no stage dialog. See
* `lead-write-scope.ts` for why, and for the allowlist it mirrors.
*/
// ─── Types ───────────────────────────────────────────────────────────────────
export type LeadsView = "board" | "table";
type KanbanBoardProps = {
proId: string;
/** The full payload — stages and their counts come from here. */
data: KanbanData;
/**
* The leads to show, already filtered and sorted by the page. Defaults to
* every lead in `data`, so the board is usable without a filter bar.
*/
leads?: readonly KanbanLead[];
/** Board (default) or the same leads as ruled rows. */
view?: LeadsView;
/** One reading of the clock for the whole page. Defaults to this render's. */
now?: number;
/** False for staff. Hides every control the API would refuse. */
canChangeStage?: boolean;
/**
* The lead the page is currently ABOUT — the one whose dialog is open. The
* table gives it the page's one 3px index-red inset bar, which is the whole
* of the Index Red Rule: it marks the current item and nothing else. Never
* a state; a lead is not "current" because it is overdue.
*/
currentLeadId?: number | null;
/** Absent when the member may not create a lead. */
onAddLead?: () => void;
onQuickNote?: (leadId: number) => void;
onQuickReminder?: (leadId: number) => void;
};
// ─── Component ───────────────────────────────────────────────────────────────
export function KanbanBoard({
proId,
data,
leads = data.leads,
view = "board",
now = Date.now(),
canChangeStage = true,
currentLeadId = null,
onAddLead,
onQuickNote,
onQuickReminder,
}: KanbanBoardProps) {
const queryClient = useQueryClient();
const [pendingDrop, setPendingDrop] = useState<PendingDrop | null>(null);
const [lossReasonCategory, setLossReasonCategory] = useState("");
const [lossReason, setLossReason] = useState("");
const [orderValue, setOrderValue] = useState("");
// Terminal columns default to expanded (users can still collapse manually)
const [collapsedColumns, setCollapsedColumns] = useState<Set<number>>(
() => new Set<number>(),
);
const toggleCollapse = useCallback((stageId: number) => {
setCollapsedColumns((prev) => {
const next = new Set(prev);
if (next.has(stageId)) {
next.delete(stageId);
} else {
next.add(stageId);
}
return next;
});
}, []);
// Group the visible leads by stage
const leadsByStage = useMemo(() => {
const map = new Map<number, KanbanLead[]>();
for (const stage of data.stages) {
map.set(stage.id, []);
}
for (const lead of leads) {
const arr = map.get(lead.currentStageId);
Eif (arr) arr.push(lead);
}
return map;
}, [data.stages, leads]);
// Lead lookup for O(1) access in handleDrop
const leadMap = useMemo(() => {
const map = new Map<number, KanbanLead>();
for (const lead of leads) {
map.set(lead.id, lead);
}
return map;
}, [leads]);
const stageMap = useMemo(() => {
const map = new Map<number, (typeof data.stages)[number]>();
for (const stage of data.stages) {
map.set(stage.id, stage);
}
return map;
}, [data.stages]);
const kanbanQueryKey = queryKeys.crm.kanban(proId);
const changeStageMutation = useMutation({
mutationFn: async ({
leadId,
stageId,
orderValuePaise,
lossReason: reason,
lossReasonCategory: category,
}: {
leadId: number;
stageId: number;
orderValuePaise?: number;
lossReason?: string;
lossReasonCategory?: string;
}) => {
return crmApi.changeStage(proId, leadId, {
stageId,
orderValuePaise,
lossReason: reason,
lossReasonCategory: category,
});
},
onMutate: async ({ leadId, stageId }) => {
await queryClient.cancelQueries({ queryKey: kanbanQueryKey });
const previous = queryClient.getQueryData<KanbanData>(kanbanQueryKey);
if (previous) {
queryClient.setQueryData<KanbanData>(kanbanQueryKey, {
...previous,
leads: previous.leads.map((l) =>
l.id === leadId ? { ...l, currentStageId: stageId } : l,
),
});
}
return { previous };
},
onError: (_err, _vars, context) => {
Eif (context?.previous) {
queryClient.setQueryData(kanbanQueryKey, context.previous);
}
},
onSettled: () => {
queryClient.invalidateQueries({
queryKey: queryKeys.crm.all,
});
},
});
const handleDrop = useCallback(
(leadId: number, stageId: number) => {
Iif (!canChangeStage) return;
const lead = leadMap.get(leadId);
if (!lead || lead.currentStageId === stageId) return;
const targetStage = stageMap.get(stageId);
Iif (!targetStage) return;
// Won/Lost require confirmation
if (isTerminalStage(targetStage.stageType)) {
setPendingDrop({
leadId,
stageId,
stageName: targetStage.name,
stageType: targetStage.stageType,
});
return;
}
changeStageMutation.mutate({ leadId, stageId });
},
[canChangeStage, leadMap, stageMap, changeStageMutation],
);
const confirmDrop = useCallback(() => {
Iif (!pendingDrop) return;
const extras: {
orderValuePaise?: number;
lossReason?: string;
lossReasonCategory?: string;
} = {};
if (pendingDrop.stageType === "system_terminal_won" && orderValue) {
const parsed = parseCurrencyInput(orderValue);
Eif (parsed && parsed > 0) extras.orderValuePaise = parsed;
}
if (pendingDrop.stageType === "system_terminal_lost") {
if (lossReasonCategory) extras.lossReasonCategory = lossReasonCategory;
if (lossReason) extras.lossReason = lossReason;
}
changeStageMutation.mutate({
leadId: pendingDrop.leadId,
stageId: pendingDrop.stageId,
...extras,
});
setPendingDrop(null);
setLossReasonCategory("");
setLossReason("");
setOrderValue("");
}, [
pendingDrop,
orderValue,
lossReasonCategory,
lossReason,
changeStageMutation,
]);
const cancelDrop = useCallback(() => {
setPendingDrop(null);
setLossReasonCategory("");
setLossReason("");
setOrderValue("");
}, []);
if (data.stages.length === 0) {
return (
<EmptyState
icon={Contact}
title="Setting up your pipeline"
description="Your pipeline is being set up. Refresh the page in a moment."
/>
);
}
if (view === "table") {
return (
<>
<LeadsTable
leads={leads}
stages={data.stages}
now={now}
currentLeadId={currentLeadId}
/>
<StageChangeDialogs
pendingDrop={pendingDrop}
orderValue={orderValue}
onOrderValueChange={setOrderValue}
lossReasonCategory={lossReasonCategory}
onLossReasonCategoryChange={setLossReasonCategory}
lossReason={lossReason}
onLossReasonChange={setLossReason}
onConfirm={confirmDrop}
onCancel={cancelDrop}
isPending={changeStageMutation.isPending}
/>
</>
);
}
return (
<>
{/* Mobile: the same stages as collapsible sections of rows. */}
<div className="md:hidden">
<MobileLeadList
stages={data.stages}
leads={leads}
now={now}
onAddLead={onAddLead}
onQuickNote={onQuickNote}
onQuickReminder={onQuickReminder}
/>
</div>
{/*
* Desktop: equal columns that scroll sideways, never wrap. The
* `auto-cols` track is the mockup's own page-local `.board` rule.
*/}
<div className="hidden h-[calc(100vh-22rem)] grid-flow-col auto-cols-[minmax(14rem,1fr)] gap-4 overflow-x-auto pb-2 md:grid">
{data.stages.map((stage) => (
<KanbanColumn
key={stage.id}
stage={stage}
leads={leadsByStage.get(stage.id) || []}
now={now}
canChangeStage={canChangeStage}
onDrop={handleDrop}
onAddLead={
stage.stageType === "system_entry" ? onAddLead : undefined
}
isCollapsed={collapsedColumns.has(stage.id)}
onToggleCollapse={
isTerminalStage(stage.stageType)
? () => toggleCollapse(stage.id)
: undefined
}
onQuickNote={onQuickNote}
onQuickReminder={onQuickReminder}
/>
))}
</div>
<StageChangeDialogs
pendingDrop={pendingDrop}
orderValue={orderValue}
onOrderValueChange={setOrderValue}
lossReasonCategory={lossReasonCategory}
onLossReasonCategoryChange={setLossReasonCategory}
lossReason={lossReason}
onLossReasonChange={setLossReason}
onConfirm={confirmDrop}
onCancel={cancelDrop}
isPending={changeStageMutation.isPending}
/>
</>
);
}
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