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62 lines
1.0 KiB
TypeScript
62 lines
1.0 KiB
TypeScript
//
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// Common
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//
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export type MetadataProps = 'id' | 'createdAt'
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type Opaque<T, K, L extends string = 'opaque'> = T & { _: K; __: L }
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type Id<T> = Opaque<string, T, 'id'>
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//
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// Users
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//
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export type AdministratorRole = 'admin' | 'moderator'
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export type StudentRole = 'student'
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export type UserRole = AdministratorRole | StudentRole
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export type UserId = Id<User>
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export type User = {
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id: UserId
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role: UserRole
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}
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export function isAdministrator(role: UserRole): role is AdministratorRole {
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return role !== 'student'
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}
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export function isStudent(role: UserRole): role is StudentRole {
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return role === 'student'
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}
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//
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// Problems
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//
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export type ProblemId = Id<Problem>
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export type Problem = {
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id: ProblemId
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content: string
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createdBy: UserId
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createdAt: string
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}
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//
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// Solutions
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//
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export type SolutionStatus = 'pending' | 'correct' | 'wrong'
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export type SolutionId = string
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export type Solution = {
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id: SolutionId
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sentBy: UserId
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forProblem: ProblemId
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content: string
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status: SolutionStatus
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}
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