use sea_orm_migration::prelude::*;

#[derive(DeriveMigrationName)]
pub struct Migration;

#[async_trait::async_trait]
impl MigrationTrait for Migration {
    async fn up(&self, manager: &SchemaManager) -> Result<(), DbErr> {
        manager
            .create_table(
                Table::create()
                    .table(CopilotInsights::Table)
                    .col(
                        ColumnDef::new(CopilotInsights::Id)
                            .uuid()
                            .not_null()
                            .primary_key(),
                    )
                    .col(ColumnDef::new(CopilotInsights::TenantId).uuid().not_null())
                    .col(ColumnDef::new(CopilotInsights::PatientId).uuid().not_null())
                    .col(
                        ColumnDef::new(CopilotInsights::InsightType)
                            .string_len(50)
                            .not_null(),
                    )
                    .col(
                        ColumnDef::new(CopilotInsights::Source)
                            .string_len(20)
                            .not_null(),
                    )
                    .col(
                        ColumnDef::new(CopilotInsights::Severity)
                            .string_len(20)
                            .null(),
                    )
                    .col(
                        ColumnDef::new(CopilotInsights::Title)
                            .string_len(500)
                            .not_null(),
                    )
                    .col(ColumnDef::new(CopilotInsights::Content).json().not_null())
                    .col(ColumnDef::new(CopilotInsights::RuleMatches).json().null())
                    .col(ColumnDef::new(CopilotInsights::LlmSupplement).text().null())
                    .col(
                        ColumnDef::new(CopilotInsights::ExpiresAt)
                            .timestamp_with_time_zone()
                            .not_null(),
                    )
                    .col(
                        ColumnDef::new(CopilotInsights::IsRead)
                            .boolean()
                            .not_null()
                            .default(false),
                    )
                    .col(
                        ColumnDef::new(CopilotInsights::IsDismissed)
                            .boolean()
                            .not_null()
                            .default(false),
                    )
                    .col(
                        ColumnDef::new(CopilotInsights::CreatedAt)
                            .timestamp_with_time_zone()
                            .not_null()
                            .default(Expr::current_timestamp()),
                    )
                    .col(
                        ColumnDef::new(CopilotInsights::UpdatedAt)
                            .timestamp_with_time_zone()
                            .not_null()
                            .default(Expr::current_timestamp()),
                    )
                    .col(ColumnDef::new(CopilotInsights::CreatedBy).uuid().null())
                    .col(ColumnDef::new(CopilotInsights::UpdatedBy).uuid().null())
                    .col(
                        ColumnDef::new(CopilotInsights::DeletedAt)
                            .timestamp_with_time_zone()
                            .null(),
                    )
                    .col(
                        ColumnDef::new(CopilotInsights::VersionLock)
                            .integer()
                            .not_null()
                            .default(1),
                    )
                    .to_owned(),
            )
            .await?;

        manager
            .create_index(
                Index::create()
                    .name("idx_copilot_insights_tenant_patient")
                    .table(CopilotInsights::Table)
                    .col(CopilotInsights::TenantId)
                    .col(CopilotInsights::PatientId)
                    .to_owned(),
            )
            .await?;

        manager
            .create_index(
                Index::create()
                    .name("idx_copilot_insights_expires")
                    .table(CopilotInsights::Table)
                    .col(CopilotInsights::ExpiresAt)
                    .to_owned(),
            )
            .await
    }

    async fn down(&self, manager: &SchemaManager) -> Result<(), DbErr> {
        manager
            .drop_table(Table::drop().table(CopilotInsights::Table).to_owned())
            .await
    }
}

#[derive(DeriveIden)]
enum CopilotInsights {
    Table,
    Id,
    TenantId,
    PatientId,
    InsightType,
    Source,
    Severity,
    Title,
    Content,
    RuleMatches,
    LlmSupplement,
    ExpiresAt,
    IsRead,
    IsDismissed,
    CreatedAt,
    UpdatedAt,
    CreatedBy,
    UpdatedBy,
    DeletedAt,
    VersionLock,
}