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export const TEACHER_MADE_TESTS_UNLIMITED_KEY = "teacher.teacher_made_tests.unlimited";
export const TEACHER_MADE_TESTS_LIMIT_10_KEY = "teacher.teacher_made_tests.limit_10";
/** Summary analytics API — requires limit_10 or unlimited (not item_analysis). */
export const isTeacherMadeAssignmentAnalyticsEnabled = (features) =>
isFeatureEnabled(features, TEACHER_MADE_TESTS_LIMIT_10_KEY) ||
isFeatureEnabled(features, TEACHER_MADE_TESTS_UNLIMITED_KEY);
export const TEACHER_MADE_ASSIGNMENT_BLOCK_REASONS = {
NOT_ENABLED: "teacher_made_assignments_not_enabled",
LIMIT_REACHED: "teacher_made_assignment_limit_reached",
};
/**
* @typedef {Object} TeacherMadeAssignmentQuota
* @property {boolean} can_create
* @property {number|null} max_assignments
* @property {number} current_count
* @property {number|null} remaining
* @property {string|null} enabled_feature
*/
const toNumberOrNull = (value) => {
if (value === null || value === undefined || value === "") return null;
const num = Number(value);
return Number.isFinite(num) ? num : null;
};
const isQuotaShape = (value) =>
value &&
typeof value === "object" &&
("can_create" in value || "max_assignments" in value || "current_count" in value);
/** Pick quota object from API responses (effective features, quota endpoint, create error, etc.). */
export const pickTeacherMadeAssignmentQuotaRaw = (payload) => {
if (!payload || typeof payload !== "object") return null;
if (payload.teacher_made_assignments) return payload.teacher_made_assignments;
if (payload.teacherMadeAssignments) return payload.teacherMadeAssignments;
if (payload.data?.teacher_made_assignments) return payload.data.teacher_made_assignments;
if (payload.data?.teacherMadeAssignments) return payload.data.teacherMadeAssignments;
if (payload.quota && isQuotaShape(payload.quota)) return payload.quota;
if (isQuotaShape(payload)) return payload;
Iif (payload.data && isQuotaShape(payload.data)) return payload.data;
return null;
};
/** Normalize quota from dedicated quota API (preferred) or nested response fields. */
export const normalizeTeacherMadeAssignmentQuota = (raw) => {
if (!raw || typeof raw !== "object") return null;
const maxAssignments = toNumberOrNull(raw.max_assignments);
const currentCount = toNumberOrNull(raw.current_count) ?? 0;
if (maxAssignments === null) {
return {
can_create: raw.can_create !== false,
max_assignments: null,
current_count: currentCount,
remaining: null,
enabled_feature: raw.enabled_feature ?? null,
};
}
if (maxAssignments === 0) {
return {
can_create: false,
max_assignments: 0,
current_count: currentCount,
remaining: 0,
enabled_feature: raw.enabled_feature ?? null,
};
}
const remaining = Math.max(0, maxAssignments - currentCount);
const canCreate = currentCount < maxAssignments;
return {
can_create: canCreate,
max_assignments: maxAssignments,
current_count: currentCount,
remaining,
enabled_feature: raw.enabled_feature ?? null,
};
};
export const extractTeacherMadeAssignmentQuotaFromPayload = (payload) => {
const raw = pickTeacherMadeAssignmentQuotaRaw(payload);
return raw ? normalizeTeacherMadeAssignmentQuota(raw) : null;
};
/** Live teacher-made assignments in one class (current category, not deleted). */
export const countClassTeacherMadeAssignments = (assignments) => {
if (!Array.isArray(assignments)) return 0;
return assignments.filter((assignment) => {
if (assignment?.deleted === true) return false;
const category = String(assignment?.category ?? "current")
.trim()
.toLowerCase();
return !category || category === "current";
}).length;
};
/**
* Apply plan entitlement from API with per-class usage (limit is per class, per teacher).
* `planQuota.max_assignments` is the cap for each class; `classAssignmentCount` is this class only.
*/
export const resolveClassTeacherMadeAssignmentQuota = (planQuota, classAssignmentCount = 0) => {
if (!planQuota) return null;
const classCount = Math.max(0, Number(classAssignmentCount) || 0);
if (planQuota.max_assignments === null) {
return normalizeTeacherMadeAssignmentQuota({
max_assignments: null,
current_count: classCount,
enabled_feature: planQuota.enabled_feature,
can_create: true,
});
}
if (planQuota.max_assignments === 0) {
return { ...planQuota, current_count: classCount, remaining: 0, can_create: false };
}
return normalizeTeacherMadeAssignmentQuota({
max_assignments: planQuota.max_assignments,
current_count: classCount,
enabled_feature: planQuota.enabled_feature,
});
};
/** UI state for create button / banners — trust API quota over client counting. */
export const getTeacherMadeAssignmentCreateUi = (quota) => {
if (!quota) {
return { showCreate: true, message: null, upgradeRequired: false };
}
if (quota.max_assignments === 0 || !quota.can_create) {
return {
showCreate: false,
message: "Upgrade to create assignments",
upgradeRequired: true,
};
}
if (quota.max_assignments === null) {
return { showCreate: true, message: null, upgradeRequired: false };
}
return {
showCreate: quota.can_create,
message: `${quota.current_count} of ${quota.max_assignments} assignments used in this class`,
upgradeRequired: !quota.can_create,
};
};
export const parseTeacherMadeAssignmentError = (errorPayload) => {
if (!errorPayload) {
return { reason: null, message: "Failed to create assignment", quota: null };
}
const detail = errorPayload.detail;
const detailObj = detail && typeof detail === "object" ? detail : null;
const reason = detailObj?.reason ?? errorPayload.reason ?? null;
const quota = normalizeTeacherMadeAssignmentQuota(detailObj?.quota ?? errorPayload.quota);
let message =
(typeof detail === "string" && detail) ||
detailObj?.message ||
errorPayload.message ||
"Failed to create assignment";
if (reason === TEACHER_MADE_ASSIGNMENT_BLOCK_REASONS.NOT_ENABLED) {
message =
detailObj?.hint ||
"Your plan does not include teacher-made assignments. Contact your district administrator to upgrade.";
} else if (reason === TEACHER_MADE_ASSIGNMENT_BLOCK_REASONS.LIMIT_REACHED) {
const max = quota?.max_assignments ?? 10;
message =
detailObj?.hint ||
`Teacher-made assignment limit reached (${max} per class). Delete an assignment in this class before creating a new one.`;
}
return {
reason,
message,
quota,
upgradeRequired:
reason === TEACHER_MADE_ASSIGNMENT_BLOCK_REASONS.NOT_ENABLED ||
(reason === TEACHER_MADE_ASSIGNMENT_BLOCK_REASONS.LIMIT_REACHED && quota && !quota.can_create),
};
};
export const getUpgradeDialogOptionsForQuota = (quota, features = [], options = {}) => {
const { intent = "create" } = options;
const enabledKey = quota?.enabled_feature;
const preferredKey =
enabledKey === TEACHER_MADE_TESTS_LIMIT_10_KEY
? TEACHER_MADE_TESTS_UNLIMITED_KEY
: TEACHER_MADE_TESTS_UNLIMITED_KEY;
const featureMeta = getFeatureMeta(features, preferredKey) || getFeatureMeta(features, TEACHER_MADE_TESTS_LIMIT_10_KEY);
const notEnabled = !quota || quota.max_assignments === 0;
const atLimit = !notEnabled && quota.max_assignments != null && !quota.can_create;
const featureKey = atLimit ? TEACHER_MADE_TESTS_UNLIMITED_KEY : TEACHER_MADE_TESTS_LIMIT_10_KEY;
const defaultFeatureLabel = intent === "reuse" ? "Re-use assignment" : "Teacher-made assignments";
let title = "Create assignments on a higher plan";
if (intent === "reuse") {
if (notEnabled) {
title = "Re-use assignment is not on your plan";
} else if (atLimit) {
title = "Assignment limit reached";
} else {
title = "Upgrade to re-use this assignment";
}
} else if (notEnabled) {
title = "Assignment creation is not on your plan";
} else if (atLimit) {
title = "Assignment limit reached";
}
return {
title,
featureKey,
featureLabel: defaultFeatureLabel,
featureMeta,
minPlan: featureMeta?.min_plan ?? (atLimit ? "premium" : "intermediate"),
};
};
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