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import { db as defaultDb } from '$lib/server/db';
import { routines, routineCompletions, projects } from '$lib/server/db/schema';
import { eq, inArray, desc, sql } from 'drizzle-orm';
import type { AppDatabase } from './groceries';
import type { Routine, RoutineCompletion } from './types';
import {
computeRoutineState,
computeHealthScore,
type RoutineState,
} from '$lib/shared/routine-metrics';
// ponytail: next routine id via MAX(id)+1, safe enough for a single-user app;
// switch to a dedicated id table or transaction if concurrent writes appear.
export async function nextRoutineId(db: AppDatabase): Promise<number> {
const [{ maxId }] = await db
.select({ maxId: sql<number>`COALESCE(MAX(${routines.id}), 0)` })
.from(routines);
return (maxId ?? 0) + 1;
}
export async function add(
projectId: number,
name: string,
frequencyDays: number,
db = defaultDb,
): Promise<Routine> {
const id = await nextRoutineId(db);
const [inserted] = await db
.insert(routines)
.values({
id,
version: 1,
projectId,
name,
frequencyDays,
createdAt: new Date().toISOString(),
})
.returning();
return inserted;
}
/**
* Edit = insert a new snapshot row with version+1; history stays intact.
* Only the given fields change; the others are copied from the current
* snapshot so a name/frequency edit never touches the description and
* vice-versa.
*/
export async function edit(
id: number,
fields: Partial<Pick<Routine, 'name' | 'frequencyDays' | 'description'>>,
db = defaultDb,
): Promise<Routine> {
const [current] = await db
.select()
.from(routines)
.where(eq(routines.id, id))
.orderBy(sql`${routines.version} DESC`)
.limit(1);
if (!current) throw new Error('Routine not found');
const [inserted] = await db
.insert(routines)
.values({
id: current.id,
version: current.version + 1,
projectId: current.projectId,
name: fields.name ?? current.name,
frequencyDays: fields.frequencyDays ?? current.frequencyDays,
description: fields.description ?? current.description,
archived: current.archived,
createdAt: current.createdAt,
})
.returning();
return inserted;
}
export async function archive(id: number, db = defaultDb): Promise<void> {
const [current] = await db
.select()
.from(routines)
.where(eq(routines.id, id))
.orderBy(sql`${routines.version} DESC`)
.limit(1);
if (!current) throw new Error('Routine not found');
await db.insert(routines).values({
...current,
version: current.version + 1,
archived: true,
});
}
export async function loadAllVersions(
routineId: number,
db = defaultDb,
): Promise<Routine[]> {
return db
.select()
.from(routines)
.where(eq(routines.id, routineId))
.orderBy(routines.version);
}
/** Current (max-version) snapshot of a routine, or undefined when unknown. */
export async function loadCurrent(
routineId: number,
db = defaultDb,
): Promise<Routine | undefined> {
const [row] = await db
.select()
.from(routines)
.where(eq(routines.id, routineId))
.orderBy(sql`${routines.version} DESC`)
.limit(1);
return row;
}
export async function loadCompletions(
routineId: number,
db = defaultDb,
): Promise<RoutineCompletion[]> {
return db
.select()
.from(routineCompletions)
.where(eq(routineCompletions.routineId, routineId))
.orderBy(desc(routineCompletions.doneAt));
}
export async function complete(
routineId: number,
note: string | null,
doneAt: string,
db = defaultDb,
): Promise<RoutineCompletion> {
const [current] = await db
.select()
.from(routines)
.where(eq(routines.id, routineId))
.orderBy(sql`${routines.version} DESC`)
.limit(1);
if (!current) throw new Error('Routine not found');
const [inserted] = await db
.insert(routineCompletions)
.values({
routineId: current.id,
routineVersion: current.version,
doneAt,
note,
})
.returning();
return inserted;
}
export interface ProjectDashboard {
routines: RoutineState[];
healthScore: number;
}
export async function loadProjectDashboard(
projectId: number,
now: number,
db = defaultDb,
): Promise<ProjectDashboard> {
const versions = await db
.select()
.from(routines)
.where(eq(routines.projectId, projectId));
// Keep only the max-version row per routine id, then drop archived ones:
// an archived routine's max version is archived, so it disappears.
const current = new Map<number, Routine>();
for (const r of versions) {
const existing = current.get(r.id);
if (!existing || r.version > existing.version) current.set(r.id, r);
}
const routines_ = [...current.values()].filter((r) => !r.archived);
if (routines_.length === 0) return { routines: [], healthScore: 100 };
const completions = await db
.select()
.from(routineCompletions)
.where(
inArray(
routineCompletions.routineId,
routines_.map((r) => r.id),
),
);
const states = routines_.map((r) => computeRoutineState(r, completions, now));
return { routines: states, healthScore: computeHealthScore(states) };
}
export interface ProjectsOverview {
projects: { project: { id: number; name: string }; healthScore: number }[];
globalScore: number;
}
export async function loadOverview(
now: number,
db = defaultDb,
): Promise<ProjectsOverview> {
const activeProjects = await db
.select({ id: projects.id, name: projects.name })
.from(projects)
.where(eq(projects.archived, false));
const entries = await Promise.all(
activeProjects.map(async (p) => ({
project: p,
healthScore: (await loadProjectDashboard(p.id, now, db)).healthScore,
})),
);
return {
projects: entries,
globalScore: computeHealthScore(
entries.map((e) => ({ health: e.healthScore })),
),
};
}
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