import Testing

@testable import Persistence

@Suite(
    "AccountRepository repository",
    .tags(.repository)
)
struct AccountRepositoryTests {

    // MARK: Methods tests

    @Test
    func `finds the seeded demo buyer`() async throws {
        try await withDatabase { fluent in
            let user = try await AccountRepository(fluent: fluent).account(email: AccountRepository.demoEmail)

            #expect(user.email == "mara.v@example.com")
            #expect(user.displayName == "Mara Visser")
        }
    }

    @Test
    func `joins an unknown email once, named after its local part`() async throws {
        try await withDatabase { fluent in
            let repository = AccountRepository(fluent: fluent)
            let joined = try await repository.account(email: "sam@example.com")
            let returning = try await repository.account(email: "sam@example.com")

            #expect(joined.displayName == "sam")
            #expect(returning == joined)
        }
    }

}

// MARK: - Passkeys

extension AccountRepositoryTests {

    @Test
    func `joins an account together with its first passkey`() async throws {
        try await withDatabase { fluent in
            let accounts = AccountRepository(fluent: fluent)
            let free = try await accounts.isUnregistered(credentialID: "cred-1")
            let sam = try #require(try await accounts.join(email: "sam@example.com", credentialID: "cred-1", publicKey: [1, 2, 3], signCount: 0))
            let passkey = try await accounts.passkey(credentialID: "cred-1")
            let byEmail = try await accounts.passkeys(email: "sam@example.com")
            let taken = try await accounts.isUnregistered(credentialID: "cred-1")

            #expect(free)
            #expect(!taken)
            #expect(sam.displayName == "sam")
            #expect(passkey == Passkey(credentialID: "cred-1", publicKey: [1, 2, 3], signCount: 0, user: sam))
            #expect(byEmail == [passkey])
        }
    }

    @Test
    func `never adds a passkey to an account that already exists`() async throws {
        try await withDatabase { fluent in
            let accounts = AccountRepository(fluent: fluent)
            let hijack = try await accounts.join(email: AccountRepository.demoEmail, credentialID: "cred-x", publicKey: [9], signCount: 0)
            let passkeys = try await accounts.passkeys(email: AccountRepository.demoEmail)
            let stillFree = try await accounts.isUnregistered(credentialID: "cred-x")

            #expect(hijack == nil)
            #expect(passkeys.isEmpty)
            #expect(stillFree)
        }
    }

    @Test
    func `records a passkey's signature counter, and finds accounts without creating them`() async throws {
        try await withDatabase { fluent in
            let accounts = AccountRepository(fluent: fluent)

            _ = try await accounts.join(email: "sam@example.com", credentialID: "cred-1", publicKey: [1], signCount: 0)
            try await accounts.recordUse(ofPasskey: "cred-1", signCount: 7)

            let passkey = try await accounts.passkey(credentialID: "cred-1")
            let known = try await accounts.existingAccount(email: "sam@example.com")
            let unknown = try await accounts.existingAccount(email: "nobody@example.com")
            let stillUnknown = try await accounts.existingAccount(email: "nobody@example.com")

            #expect(passkey?.signCount == 7)
            #expect(known?.email == "sam@example.com")
            #expect(unknown == nil)
            #expect(stillUnknown == nil)
        }
    }

}

// MARK: - Accounts and shops

extension AccountRepositoryTests {

    @Test
    func `says whether a sign-in created the account`() async throws {
        try await withDatabase { fluent in
            let accounts = AccountRepository(fluent: fluent)
            let first = try await accounts.signIn(email: "sam@example.com")
            let again = try await accounts.signIn(email: "sam@example.com")

            #expect(first.isNew)
            #expect(!again.isNew)
            #expect(first.user == again.user)
        }
    }

    @Test
    func `renames an account, and manages the passkeys of its own`() async throws {
        try await withDatabase { fluent in
            let accounts = AccountRepository(fluent: fluent)
            let mara = try await accounts.account(email: AccountRepository.demoEmail)
            let sam = try await accounts.account(email: "sam@example.com")
            let renamed = try await accounts.rename(mara, to: "Mara V.")
            let stored = try await accounts.existingAccount(email: AccountRepository.demoEmail)

            try await accounts.addPasskey(to: mara, credentialID: "cred-m", publicKey: [1], signCount: 0)
            try await accounts.revokePasskey("cred-m", of: sam)

            let kept = try await accounts.passkeys(of: mara)

            try await accounts.revokePasskey("cred-m", of: mara)

            let revoked = try await accounts.passkeys(of: mara)

            #expect(renamed.displayName == "Mara V.")
            #expect(stored?.displayName == "Mara V.")
            #expect(kept.map(\.passkey.credentialID) == ["cred-m"])
            #expect(revoked.isEmpty)
        }
    }

    @Test
    func `opens one shop per account, under a handle of its own`() async throws {
        try await withDatabase { fluent in
            let accounts = AccountRepository(fluent: fluent)
            let catalogue = CatalogueRepository(fluent: fluent)
            let mara = try await accounts.account(email: AccountRepository.demoEmail)
            let sam = try await accounts.account(email: "sam@example.com")
            let draft = ShopDraft(
                name: "Mara's Longbox", handle: "maras-longbox", city: "Haarlem", country: "NL", about: "Spare copies.",
                kind: .privateSeller, kvkNumber: "12345678", vatID: nil, legalName: nil, returnsNote: "14-day returns", handlingDays: 2
            )
            let shop = try await catalogue.openShop(draft, for: mara)
            let owned = try await TradeRepository(fluent: fluent).shop(ownedBy: mara)

            #expect(shop.slug == "maras-longbox")
            #expect(shop.kind == .privateSeller)
            // A private seller shows no registration, whatever was typed.
            #expect(shop.kvkNumber == nil)
            #expect(!shop.isVerified)
            #expect(shop.ratedSales == 0)
            #expect(owned == shop)

            await #expect(throws: ShopError.alreadyOwner) {
                try await catalogue.openShop(draft, for: mara)
            }
            await #expect(throws: ShopError.handleTaken) {
                try await catalogue.openShop(draft, for: sam)
            }

            // And the new shop sells: its owner lists a copy, which a buyer finds.
            let listing = try await catalogue.publish(ListingDraftTests.draft(), by: mara)

            #expect(listing?.shop.slug == "maras-longbox")
        }
    }

}