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import {repository} from '@loopback/repository';
import {HttpErrors} from '@loopback/rest';
import {TimelineEventRepository} from '@logchain/repositories/scan/timeline-event.repository';
import {AttachmentType, TimelineStep} from '@logchain/types';
import {SecurityBindings} from '@loopback/security';
import {UserProfile} from '@logchain/components/aws';
import {AttachmentService} from './attachment.service';
import {AttachmentRepository} from '@logchain/repositories/scan/attachment.repository';
import {AdditionalInformationRepository} from '@logchain/repositories/scan/additional-information.repository';
import {RejectPmoRepository} from '@logchain/repositories/scan/reject-pmo.repository';
import {mapAttachmentType, toUTCString} from '@logchain/utils/scan';
import {ShipmentRepository} from '@logchain/repositories/scan/shipment.repository';
import {PmoRepository} from '@logchain/repositories';
import {SlaConfigService} from './sla-config.service';
@bind({
scope: BindingScope.TRANSIENT,
})
export class TimelineService {
@inject(SecurityBindings.USER, {optional: true})
public current_user: UserProfile;
constructor(
@repository(TimelineEventRepository)
public timelineRepo: TimelineEventRepository,
@service(AttachmentService)
public attachmentService: AttachmentService,
@repository(AttachmentRepository)
public attachmentRepo: AttachmentRepository,
@repository(AdditionalInformationRepository)
public additionalInformationRepo: AdditionalInformationRepository,
@repository(RejectPmoRepository)
public rejectPmoRepo: RejectPmoRepository,
@repository(PmoRepository)
private pmoRepo: PmoRepository,
@repository(ShipmentRepository)
private shipmentRepo: ShipmentRepository,
@service(SlaConfigService)
private slaConfigService: SlaConfigService,
) {}
getCurrentUserName(): string {
return this.current_user?.name || this.current_user?.email || 'System';
}
/**
* Get timeline by PMO
*/
async findByPmoId(pmoId: number) {
if (!pmoId) {
throw new HttpErrors.BadRequest('PMO is required');
}
const events = await this.timelineRepo.find({
where: {pmoId},
order: ['event_time ASC'],
});
const result = await Promise.all(
events.map(async (event, index) => {
const attachmentType = mapAttachmentType(event.step_code);
let attachments: any[] = [];
if (attachmentType) {
const prevSameStepEvent = events
.slice(0, index)
.reverse()
.find(e => e.step_code === event.step_code);
const fromTime = prevSameStepEvent?.event_time ?? null;
const toTime = event.event_time;
const where: any = {
pmo_id: pmoId,
type: attachmentType,
};
if (fromTime && toTime) {
where.and = [{created_at: {gt: fromTime}}, {created_at: {lte: toTime}}];
} else if (fromTime) {
where.created_at = {gt: fromTime};
} else {
where.created_at = {lte: toTime};
}
const rows = await this.attachmentRepo.find({
where,
order: ['created_at DESC'],
});
attachments = await Promise.all(
rows.map(async item => ({
...item,
signed_url: await this.attachmentService.generateSignedUrl(item.file_url!),
})),
);
}
return {
...event,
additional_information: (event.additional_information ?? '').trim(),
attachments,
};
}),
);
return result;
}
/**
* Create timeline event
*/
async createEvent(data: {
pmoId: number;
stepCode: TimelineStep;
userName?: string;
note?: string;
temporaryNo?: string;
metadata?: object;
additionalInformation?: string | null;
isRemovedFromBox?: boolean;
}) {
let resolvedTemporaryNo = data.temporaryNo ?? null;
if (!resolvedTemporaryNo && data.pmoId) {
try {
const pmo = await this.pmoRepo.findById(data.pmoId);
if (pmo?.shipment_id) {
const shipment = await this.shipmentRepo.findById(Number(pmo.shipment_id));
resolvedTemporaryNo = shipment?.temporary_no ?? null;
}
} catch (e) {
// Ignore error if PMO or Shipment not found, just proceed with null temporary number
}
}
return this.timelineRepo.create({
pmoId: data.pmoId,
step_code: data.stepCode,
user_name: data.userName,
note: data.note,
temporary_no: resolvedTemporaryNo ?? (null as any),
metadata: data.metadata,
additional_information: data.additionalInformation ?? '',
// event_time: new Date(),
is_removed_from_box: data.isRemovedFromBox ?? null,
});
}
async getTimelineDetail(pmoId: number, status: TimelineStep) {
const rows = await this.timelineRepo.find({
where: {
pmoId,
step_code: status,
},
order: ['event_time DESC'],
limit: 1,
});
const item = rows[0];
if (!item) {
return null;
}
return {
pmo_id: item.pmoId,
dropped_by: status === TimelineStep.DROPPED ? item.user_name : null,
dropped_date: status === TimelineStep.DROPPED ? item.event_time : null,
received_by: status === TimelineStep.RECEIVED ? item.user_name : null,
received_date: status === TimelineStep.RECEIVED ? item.event_time : null,
packing_by: status === TimelineStep.PACKING ? item.user_name : null,
packing_date: status === TimelineStep.PACKING ? item.event_time : null,
packed_by: status === TimelineStep.PACKED ? item.user_name : null,
packed_date: status === TimelineStep.PACKED ? item.event_time : null,
pickup_by: status === TimelineStep.PICKUP ? item.user_name : null,
pickup_date: status === TimelineStep.PICKUP ? item.event_time : null,
picked_by: status === TimelineStep.PICKED ? item.user_name : null,
picked_date: status === TimelineStep.PICKED ? item.event_time : null,
rejected_by: status === TimelineStep.REJECT ? item.user_name : null,
rejected_date: status === TimelineStep.REJECT ? item.event_time : null,
};
}
async getTimelineSummary(pmoIds: number[]) {
if (!pmoIds?.length) {
throw new HttpErrors.BadRequest('PMO ids is required');
}
/*
* LOAD ALL TIMELINES
*/
const rows = await this.timelineRepo.find({
where: {
pmoId: {
inq: pmoIds.map(x => Number(x)),
},
},
order: ['event_time ASC'],
});
/*
* GROUP RESULT
*/
const result: Record<number, any> = {};
rows.forEach(item => {
const pmoId = Number(item.pmoId);
if (!result[pmoId]) {
result[pmoId] = {
pmo_id: pmoId,
dropped_by: null,
dropped_date: null,
received_by: null,
received_date: null,
packing_by: null,
packing_date: null,
packed_by: null,
packed_date: null,
pickup_by: null,
pickup_date: null,
picked_by: null,
picked_date: null,
rejected_by: null,
rejected_date: null,
};
}
switch (item.step_code) {
case TimelineStep.DROPPED:
result[pmoId].dropped_by = item.user_name;
result[pmoId].dropped_date = item.event_time;
break;
case TimelineStep.RECEIVED:
result[pmoId].received_by = item.user_name;
result[pmoId].received_date = item.event_time;
break;
case TimelineStep.PACKING:
result[pmoId].packing_by = item.user_name;
result[pmoId].packing_date = item.event_time;
break;
case TimelineStep.PACKED:
result[pmoId].packed_by = item.user_name;
result[pmoId].packed_date = item.event_time;
break;
case TimelineStep.PICKUP:
result[pmoId].pickup_by = item.user_name;
result[pmoId].pickup_date = item.event_time;
break;
case TimelineStep.PICKED:
result[pmoId].picked_by = item.user_name;
result[pmoId].picked_date = item.event_time;
break;
case TimelineStep.REJECT:
result[pmoId].rejected_by = item.user_name;
result[pmoId].rejected_date = item.event_time;
break;
}
});
return result;
}
async findByPmoIds(pmoIds: number[]) {
if (!pmoIds?.length) {
throw new HttpErrors.BadRequest('Not found PMO');
}
const allEvents = await this.timelineRepo.find({
where: {
pmoId: {inq: pmoIds.map(x => Number(x))},
},
order: ['event_time ASC'],
});
if (!allEvents.length) return [];
const pmoCycleMap = new Map<number, number>();
const eventsWithCycle = allEvents.map(event => {
const pmoId = Number(event.pmoId);
if (!pmoCycleMap.has(pmoId)) pmoCycleMap.set(pmoId, 0);
const cycle = pmoCycleMap.get(pmoId)!;
const eventWithCycle = {...event, _cycle: cycle};
if (event.step_code === TimelineStep.REJECT) {
pmoCycleMap.set(pmoId, cycle + 1);
}
return eventWithCycle;
});
const grouped = new Map<
string,
{
events: any[];
pmoIds: Set<number>;
tempNo: string | null;
firstTime: Date;
}
>();
for (const event of eventsWithCycle) {
const tempNo = event.temporary_no?.trim() ?? null;
const cycle = event._cycle;
let groupKey: string;
if (tempNo) {
groupKey = `${event.step_code}__${tempNo}__cycle${cycle}`;
} else {
groupKey = `${event.step_code}__nott__cycle${cycle}__pmo${event.pmoId}`;
}
if (!grouped.has(groupKey)) {
grouped.set(groupKey, {
events: [],
pmoIds: new Set(),
tempNo,
firstTime: new Date(event.event_time!),
});
}
const g = grouped.get(groupKey)!;
g.events.push(event);
g.pmoIds.add(Number(event.pmoId));
}
const sortedGroups = Array.from(grouped.entries()).sort((a, b) => {
return a[1].firstTime.getTime() - b[1].firstTime.getTime();
});
const eventsByPmo = new Map<number, typeof allEvents>();
for (const event of allEvents) {
const pid = Number(event.pmoId);
if (!eventsByPmo.has(pid)) eventsByPmo.set(pid, []);
eventsByPmo.get(pid)!.push(event);
}
const result = await Promise.all(
sortedGroups.map(async ([_key, group]) => {
const rep = group.events[0];
const attachments: any[] = [];
for (const event of group.events) {
const attachmentType = mapAttachmentType(event.step_code);
if (!attachmentType) continue;
const pmoId = Number(event.pmoId);
const pmoEvents = eventsByPmo.get(pmoId) ?? [];
const eventIndex = pmoEvents.findIndex(e => e.id === event.id);
const prevSameStepEvent = pmoEvents
.slice(0, eventIndex)
.reverse()
.find(e => e.step_code === event.step_code);
const fromTime = prevSameStepEvent?.event_time ?? null;
const toTime = event.event_time;
const where: any = {
pmo_id: pmoId,
type: attachmentType,
};
const fromISO = toUTCString(fromTime);
const toISO = toUTCString(toTime);
if (fromISO && toISO) {
where.and = [{created_at: {gt: fromISO}}, {created_at: {lte: toISO}}];
} else if (fromISO) {
where.created_at = {gt: fromISO};
} else if (toISO) {
where.created_at = {lte: toISO};
}
const rows = await this.attachmentRepo.find({
where,
order: ['created_at DESC'],
});
const signed = await Promise.all(
rows.map(async item => ({
...item,
signed_url: await this.attachmentService.generateSignedUrl(item.file_url!),
})),
);
attachments.push(...signed);
}
const removedPmoIds = new Set<number>();
const normalPmoIds = new Set<number>();
for (const event of group.events) {
const pid = Number(event.pmoId);
if (event.is_removed_from_box) {
removedPmoIds.add(pid);
} else {
normalPmoIds.add(pid);
}
}
return {
step_code: rep.step_code,
temporary_no: rep.temporary_no ?? null,
user_name: rep.user_name,
note: rep.note,
event_time: rep.event_time,
additional_information: (rep.additional_information ?? '').trim(),
pmo_ids: Array.from(group.pmoIds),
removed_pmo_ids: Array.from(removedPmoIds),
attachments,
is_removed_from_box: rep.is_removed_from_box ?? null,
};
}),
);
return result;
}
async getAllTimeLine(pmoIds: number[]) {
if (!pmoIds?.length) {
throw new HttpErrors.BadRequest('Not found PMO');
}
const eventsFromPmoIds = await this.timelineRepo.find({
where: {pmoId: {inq: pmoIds.map(x => Number(x))}},
order: ['event_time ASC'],
});
const temporaryNosFromEvents = [
...new Set(eventsFromPmoIds.map(e => e.temporary_no?.trim()).filter((t): t is string => t != null && t !== '')),
];
let eventsFromTemporaryNos: any[] = [];
if (temporaryNosFromEvents.length > 0) {
eventsFromTemporaryNos = await this.timelineRepo.find({
where: {temporary_no: {inq: temporaryNosFromEvents}},
order: ['event_time ASC'],
});
}
const eventMap = new Map<number, any>();
for (const e of [...eventsFromPmoIds, ...eventsFromTemporaryNos]) {
eventMap.set(Number(e.id), e);
}
const allEvents = Array.from(eventMap.values()).sort(
(a, b) => new Date(a.event_time!).getTime() - new Date(b.event_time!).getTime(),
);
if (!allEvents.length) return [];
const allPmoIdsInEvents = [...new Set(allEvents.map(e => Number(e.pmoId)))];
const allPmosInEvents = await this.pmoRepo.find({
where: {id: {inq: allPmoIdsInEvents}},
});
const pmoCodeMap = new Map<number, string>(allPmosInEvents.map(p => [Number(p.id), p.code]));
type Group = {
stepCode: string;
tempNo: string | null;
events: any[];
pmoIds: Set<number>;
firstTime: Date;
};
const rejectedSessionMap = new Map<string, number>();
const rejectedLastWasRejected = new Map<string, boolean>();
const nonRejectedGroupMap = new Map<string, Group>();
const rejectedGroupMap = new Map<string, Group>();
const groups: Group[] = [];
const prevStepPerTempNo = new Map<string, string>();
for (const event of allEvents) {
const tempNo = event.temporary_no?.trim() || null;
if (!tempNo) {
groups.push({
stepCode: event.step_code,
tempNo: null,
events: [event],
pmoIds: new Set([Number(event.pmoId)]),
firstTime: new Date(event.event_time!),
});
continue;
}
if (event.step_code === TimelineStep.REJECT) {
const baseKey = `Rejected__${tempNo}`;
const prevStep = prevStepPerTempNo.get(tempNo);
if (!rejectedSessionMap.has(baseKey)) {
rejectedSessionMap.set(baseKey, 0);
} else if (prevStep !== TimelineStep.REJECT) {
rejectedSessionMap.set(baseKey, rejectedSessionMap.get(baseKey)! + 1);
}
const session = rejectedSessionMap.get(baseKey)!;
const groupKey = `${baseKey}__s${session}`;
if (!rejectedGroupMap.has(groupKey)) {
const g: Group = {
stepCode: event.step_code,
tempNo,
events: [],
pmoIds: new Set(),
firstTime: new Date(event.event_time!),
};
rejectedGroupMap.set(groupKey, g);
groups.push(g);
}
const g = rejectedGroupMap.get(groupKey)!;
g.events.push(event);
g.pmoIds.add(Number(event.pmoId));
} else {
const groupKey = `${event.step_code}__${tempNo}`;
if (!nonRejectedGroupMap.has(groupKey)) {
const g: Group = {
stepCode: event.step_code,
tempNo,
events: [],
pmoIds: new Set(),
firstTime: new Date(event.event_time!),
};
nonRejectedGroupMap.set(groupKey, g);
groups.push(g);
}
const g = nonRejectedGroupMap.get(groupKey)!;
g.events.push(event);
g.pmoIds.add(Number(event.pmoId));
}
prevStepPerTempNo.set(tempNo, event.step_code);
}
groups.sort((a, b) => a.firstTime.getTime() - b.firstTime.getTime());
const eventsByPmo = new Map<number, any[]>();
for (const event of allEvents) {
const pid = Number(event.pmoId);
if (!eventsByPmo.has(pid)) eventsByPmo.set(pid, []);
eventsByPmo.get(pid)!.push(event);
}
type AttachmentQuery = {
pmoId: number;
type: AttachmentType;
fromISO: string | null;
toISO: string | null;
};
const attachmentQueries: AttachmentQuery[] = [];
const attachmentResultMap = new Map<string, any[]>();
for (const group of groups) {
for (const event of group.events) {
const attachmentType = mapAttachmentType(event.step_code);
if (!attachmentType) continue;
const pmoId = Number(event.pmoId);
const pmoEvents = eventsByPmo.get(pmoId) ?? [];
const eventIndex = pmoEvents.findIndex(e => e.id === event.id);
const prevSameStepEvent = pmoEvents
.slice(0, eventIndex)
.reverse()
.find(e => e.step_code === event.step_code);
const fromISO = toUTCString(prevSameStepEvent?.event_time ?? null);
const toISO = toUTCString(event.event_time);
const queryKey = `${pmoId}__${attachmentType}__${toISO ?? ''}`;
if (!attachmentResultMap.has(queryKey)) {
attachmentResultMap.set(queryKey, []);
attachmentQueries.push({pmoId, type: attachmentType, fromISO, toISO});
}
}
}
await Promise.all(
attachmentQueries.map(async ({pmoId, type, fromISO, toISO}) => {
const where: any = {pmo_id: pmoId, type};
if (fromISO && toISO) {
where.and = [{created_at: {gt: fromISO}}, {created_at: {lte: toISO}}];
} else if (fromISO) {
where.created_at = {gt: fromISO};
} else if (toISO) {
where.created_at = {lte: toISO};
}
const rows = await this.attachmentRepo.find({where, order: ['created_at DESC']});
const signed = await Promise.all(
rows.map(async item => ({
...item,
signed_url: await this.attachmentService.generateSignedUrl(item.file_url!),
})),
);
const queryKey = `${pmoId}__${type}__${toISO ?? ''}`;
attachmentResultMap.set(queryKey, signed);
}),
);
// ── BUILD RESULT ──
const result = groups.map(group => {
const rep = group.events[0];
const attachments: any[] = [];
const seenGroupUids = new Set<string>();
for (const event of group.events) {
const attachmentType = mapAttachmentType(event.step_code);
if (!attachmentType) continue;
const pmoId = Number(event.pmoId);
const toISO = toUTCString(event.event_time);
const queryKey = `${pmoId}__${attachmentType}__${toISO ?? ''}`;
const rows = attachmentResultMap.get(queryKey) ?? [];
for (const att of rows) {
if (att.group_uid) {
if (seenGroupUids.has(att.group_uid)) continue;
seenGroupUids.add(att.group_uid);
}
attachments.push(att);
}
}
const pmoEventMap = new Map<number, {hasNormal: boolean; hasRemoved: boolean}>();
for (const event of group.events) {
const pid = Number(event.pmoId);
if (!pmoEventMap.has(pid)) {
pmoEventMap.set(pid, {hasNormal: false, hasRemoved: false});
}
const entry = pmoEventMap.get(pid)!;
if (event.is_removed_from_box) {
entry.hasRemoved = true;
} else {
entry.hasNormal = true;
}
}
const normalPmoCodes: string[] = [];
const removedPmoCodes: string[] = [];
for (const [pid, flags] of pmoEventMap.entries()) {
const code = pmoCodeMap.get(pid) ?? String(pid);
if (flags.hasNormal) {
normalPmoCodes.push(code);
} else {
removedPmoCodes.push(code);
}
}
return {
step_code: rep.step_code,
temporary_no: rep.temporary_no ?? null,
shipping_no: rep.shipping_no ?? null,
user_name: rep.user_name,
note: rep.note,
event_time: rep.event_time,
additional_information: (rep.additional_information ?? '').trim(),
pmo_codes: normalPmoCodes,
removed_pmo_codes: removedPmoCodes,
attachments,
is_removed_from_box: rep.is_removed_from_box ?? null,
};
});
return result;
}
// ========================
// SLA CALCULATION METHODS
// ========================
/**
* Get timeline with SLA deadline for Packing stage
*
* Integrated with PMO/Shipment to display Estimated Time
* based on the forwarder's SLA configuration
*/
async getTimelineWithSlaDeadline(pmoId: number, forwarder?: string) {
if (!pmoId) {
throw new HttpErrors.BadRequest('PMO ID is required');
}
// Get timeline events
const events = await this.timelineRepo.find({
where: {pmoId},
order: ['event_time ASC'],
});
if (!events.length) {
return null;
}
// Find the Packing event
const dropppedEvent = events.find(e => e.step_code === TimelineStep.DROPPED);
if (!dropppedEvent) {
// No packing event, return timeline as is
return {
timeline: await this.findByPmoId(pmoId),
sla_deadline: null,
sla_config: null,
};
}
// Get PMO to get forwarder info
const pmo = await this.pmoRepo.findById(pmoId);
const providerName = forwarder ?? pmo?.forwarder;
if (!providerName) {
return {
timeline: await this.findByPmoId(pmoId),
sla_deadline: null,
sla_config: null,
warning: 'No forwarder specified for SLA calculation',
};
}
try {
// Calculate SLA deadline
const slaResult = await this.slaConfigService.calculateSlaDeadline({
provider: providerName,
startDateTime: dropppedEvent.event_time ?? new Date(),
countryCode: pmo?.country_code, // If available
});
if (!slaResult) {
return {
timeline: await this.findByPmoId(pmoId),
sla_deadline: null,
sla_config: null,
};
}
// Get SLA config
const slaConfig = await this.slaConfigService.getSlaConfig(providerName, pmo?.country_code);
// Get remaining time
const remainingTime = this.slaConfigService.getRemainingTime(slaResult.deadline);
return {
timeline: await this.findByPmoId(pmoId),
sla_deadline: {
...slaResult,
remaining_time: remainingTime,
is_overdue: remainingTime.isOverdue,
status: remainingTime.isOverdue
? 'OVERDUE'
: remainingTime.days === 0
? 'TODAY'
: remainingTime.days === 1
? 'TOMORROW'
: 'PENDING',
},
sla_config: slaConfig,
};
} catch (error) {
return {
timeline: await this.findByPmoId(pmoId),
sla_deadline: null,
sla_config: null,
error: (error as any).message,
};
}
}
/**
* Get timeline summary with SLA for multiple PMOs
*/
async getTimelineSummaryWithSla(pmoIds: number[], forwarder?: string) {
if (!pmoIds?.length) {
throw new HttpErrors.BadRequest('PMO ids is required');
}
const summary = await this.getTimelineSummary(pmoIds);
const slaMap = new Map<number, any>();
// Get all PMOs to get forwarder info
const pmos = await this.pmoRepo.find({
where: {id: {inq: pmoIds}},
});
const pmoForwarderMap = new Map(pmos.map(p => [p.id, p.forwarder]));
// Calculate SLA for each PMO
for (const pmoId of pmoIds) {
try {
const result = await this.getTimelineWithSlaDeadline(pmoId, forwarder);
if (result?.sla_deadline) {
slaMap.set(pmoId, result.sla_deadline);
}
} catch (error) {
// Skip if SLA calculation fails
console.warn(`SLA calculation failed for PMO ${pmoId}:`, (error as any).message);
}
}
// Merge SLA info into summary
const result: Record<number, any> = {};
for (const [pmoId, summaryData] of Object.entries(summary)) {
const id = Number(pmoId);
result[id] = {
...summaryData,
sla_deadline: slaMap.get(id) || null,
forwarder: pmoForwarderMap.get(id) ?? null,
};
}
return result;
}
/**
* Get SLA status for a specific timeline event
*/
async getEventSlaStatus(eventId: number) {
const event = await this.timelineRepo.findById(eventId);
if (!event) {
throw new HttpErrors.NotFound(`Timeline event ${eventId} not found`);
}
const slaDeadline = (event.metadata as any)?.sla_deadline;
if (!slaDeadline) {
return {
has_sla: false,
event_id: eventId,
step_code: event.step_code,
};
}
const deadline = new Date(slaDeadline);
const remaining = this.slaConfigService.getRemainingTime(deadline);
return {
has_sla: true,
event_id: eventId,
step_code: event.step_code,
sla_deadline: deadline,
remaining_time: remaining,
is_overdue: remaining.isOverdue,
sla_config: (event.metadata as any)?.sla_config,
};
}
}
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