use thiserror::Error;

/// Represents errors that can occur during RSVP acceptance operations.
///
/// These errors typically occur during the acceptance workflow, including
/// ticket creation, validation, and acceptance record management.
#[derive(Debug, Error)]
pub(crate) enum AcceptanceError {
    /// Error when retrieving an acceptance ticket fails.
    ///
    /// This error occurs when a database query for an acceptance ticket
    /// fails due to connectivity or query issues.
    #[error("error-smokesignal-acceptance-1 Failed to get acceptance ticket: {0}")]
    TicketGetFailed(String),

    /// Error when an acceptance ticket is not found.
    ///
    /// This error occurs when attempting to retrieve an acceptance ticket
    /// that doesn't exist in the database.
    #[error("error-smokesignal-acceptance-2 Acceptance ticket not found")]
    TicketNotFound,

    /// Error when retrieving the latest acceptance ticket fails.
    ///
    /// This error occurs when querying for the most recent acceptance ticket
    /// fails due to database issues.
    #[error("error-smokesignal-acceptance-3 Failed to get latest acceptance ticket: {0}")]
    LatestTicketGetFailed(String),

    /// Error when retrieving an RSVP for validation fails.
    ///
    /// This error occurs when querying for an RSVP record during the
    /// acceptance validation process fails.
    #[error("error-smokesignal-acceptance-4 Failed to get RSVP for validation: {0}")]
    RsvpGetFailed(String),

    /// Error when an RSVP is not found.
    ///
    /// This error occurs when attempting to retrieve an RSVP record
    /// that doesn't exist in the database.
    #[error("error-smokesignal-acceptance-5 RSVP not found")]
    RsvpNotFound,

    /// Error when an acceptance AT-URI is invalid.
    ///
    /// This error occurs when attempting to parse an AT-URI for an
    /// acceptance record that is malformed or invalid.
    #[error("error-smokesignal-acceptance-6 Invalid acceptance AT-URI: {0}")]
    InvalidAcceptanceAtUri(String),

    /// Error when resolving the organizer's DID fails.
    ///
    /// This error occurs when DID resolution for the event organizer
    /// fails during the acceptance workflow.
    #[error("error-smokesignal-acceptance-7 Failed to resolve organizer DID: {0}")]
    OrganizerDidResolveFailed(String),

    /// Error when the organizer has no PDS endpoint.
    ///
    /// This error occurs when the organizer's DID document doesn't contain
    /// any PDS endpoints, preventing acceptance record creation.
    #[error("error-smokesignal-acceptance-8 Organizer has no PDS endpoint")]
    OrganizerNoPdsEndpoint,

    /// Error when retrieving an acceptance record from AT Protocol fails.
    ///
    /// This error occurs when fetching an acceptance record from the
    /// organizer's PDS fails.
    #[error("error-smokesignal-acceptance-9 Failed to get acceptance record: {0}")]
    AcceptanceRecordGetFailed(String),

    /// Error when deserializing an RSVP record fails.
    ///
    /// This error occurs when attempting to parse RSVP record JSON data
    /// that is malformed or invalid.
    #[error("error-smokesignal-acceptance-10 Failed to deserialize RSVP record: {0}")]
    RsvpDeserializeFailed(String),

    /// Error when appending a remote attestation fails.
    ///
    /// This error occurs when adding an attestation to an RSVP record
    /// fails during the acceptance workflow.
    #[error("error-smokesignal-acceptance-12 Failed to append remote attestation: {0}")]
    AttestationAppendFailed(String),

    /// Error when an RSVP AT-URI is invalid.
    ///
    /// This error occurs when attempting to parse an AT-URI for an RSVP
    /// record that is malformed or invalid.
    #[error("error-smokesignal-acceptance-13 Invalid RSVP AT-URI: {0}")]
    InvalidRsvpAtUri(String),

    /// Error when updating an RSVP via AT Protocol fails.
    ///
    /// This error occurs when the AT Protocol putRecord operation fails
    /// when updating an RSVP with acceptance information.
    #[error("error-smokesignal-acceptance-14 AT Protocol error updating RSVP: {0}")]
    RsvpUpdateAtProtocolFailed(String),

    /// Error when updating an RSVP fails.
    ///
    /// This error occurs when a generic error happens during RSVP update
    /// that isn't specifically an AT Protocol error.
    #[error("error-smokesignal-acceptance-15 Failed to update RSVP: {0}")]
    RsvpUpdateFailed(String),

    /// Error when updating the RSVP validated_at timestamp fails.
    ///
    /// This error occurs when updating the database to mark an RSVP as
    /// validated fails.
    #[error("error-smokesignal-acceptance-16 Failed to update RSVP validated_at: {0}")]
    RsvpValidatedAtUpdateFailed(String),

    /// Error when deleting an acceptance ticket fails.
    ///
    /// This error occurs when removing a processed acceptance ticket
    /// from the database fails.
    #[error("error-smokesignal-acceptance-17 Failed to delete acceptance ticket: {0}")]
    TicketDeleteFailed(String),

    /// Error when serializing acceptance data fails.
    ///
    /// This error occurs when converting acceptance data to JSON format
    /// fails during record creation.
    #[error("error-smokesignal-acceptance-19 Failed to serialize acceptance: {0}")]
    AcceptanceSerializeFailed(String),

    /// Error when creating a remote attestation proof fails.
    ///
    /// This error occurs when generating a cryptographic proof for
    /// remote attestation fails.
    #[error("error-smokesignal-acceptance-20 Failed to create remote attestation proof: {0}")]
    AttestationProofCreateFailed(String),

    /// Error when the AT Protocol putRecord operation returns an error.
    ///
    /// This error occurs when creating an acceptance record via AT Protocol
    /// fails with an error response from the PDS.
    #[error("error-smokesignal-acceptance-21 AT Protocol putRecord failed: {0}")]
    PutRecordFailed(String),

    /// Error when storing an acceptance ticket fails.
    ///
    /// This error occurs when saving a new acceptance ticket to the
    /// database fails.
    #[error("error-smokesignal-acceptance-22 Failed to store acceptance ticket: {0}")]
    TicketStoreFailed(String),

    /// Error when deleting an acceptance record fails.
    ///
    /// This error occurs when removing an acceptance record from the
    /// database fails during unacceptance operations.
    #[error("error-smokesignal-acceptance-23 Failed to delete acceptance record: {0}")]
    AcceptanceRecordDeleteFailed(String),

    /// Error when clearing the RSVP validated_at timestamp fails.
    ///
    /// This error occurs when resetting the validated_at field during
    /// unacceptance operations fails.
    #[error("error-smokesignal-acceptance-24 Failed to clear RSVP validated_at: {0}")]
    RsvpValidatedAtClearFailed(String),

    /// Error when the AT Protocol deleteRecord operation fails.
    ///
    /// This error occurs when deleting an acceptance record via AT Protocol
    /// fails with an error response from the PDS.
    #[error("error-smokesignal-acceptance-25 AT Protocol deleteRecord failed: {0}")]
    DeleteRecordFailed(String),

    /// Error when user is not authorized to perform the operation.
    ///
    /// This error occurs when a user attempts to perform an acceptance
    /// operation they don't have permission for.
    #[error("error-smokesignal-acceptance-26 Not authorized")]
    NotAuthorized,

    /// Error when retrieving the event fails.
    ///
    /// This error occurs when querying for the event record during
    /// external attestation processing fails.
    #[error("error-smokesignal-acceptance-27 Failed to get event: {0}")]
    EventGetFailed(String),

    /// Error when inserting a new RSVP fails.
    ///
    /// This error occurs when creating a new RSVP record during
    /// external attestation processing fails.
    #[error("error-smokesignal-acceptance-28 Failed to insert RSVP: {0}")]
    RsvpInsertFailed(String),
}