nyx/src/dynamic/framework/adapters/migration_prisma.rs

//! Phase 21 (Track M.3) — Prisma migration adapter (JS / TS).
//!
//! Prisma migrations are SQL files generated by `prisma migrate dev`
//! plus a TS / JS seed script that calls `prisma.$executeRaw`.  Fires
//! when the surrounding source imports `@prisma/client` and the
//! function body invokes one of the raw-execution callees.

use crate::dynamic::framework::{FrameworkAdapter, FrameworkBinding};
use crate::evidence::EntryKind;
use crate::summary::FuncSummary;
use crate::symbol::Lang;

pub struct MigrationPrismaAdapter;

const ADAPTER_NAME: &str = "migration-prisma";

fn callee_is_prisma_migration(name: &str) -> bool {
    let last = name.rsplit_once('.').map(|(_, s)| s).unwrap_or(name);
    matches!(
        last,
        "$executeRaw"
            | "$executeRawUnsafe"
            | "$queryRaw"
            | "$queryRawUnsafe"
            | "migrate"
            | "deploy"
            | "up"
    )
}

fn source_imports_prisma_migration(file_bytes: &[u8]) -> bool {
    const NEEDLES: &[&[u8]] = &[
        b"@prisma/client",
        b"require('@prisma/client')",
        b"require(\"@prisma/client\")",
        b"from '@prisma/client'",
        b"from \"@prisma/client\"",
        b"prisma.$executeRaw",
        b"prisma.$queryRaw",
        b"PrismaClient",
    ];
    NEEDLES
        .iter()
        .any(|n| file_bytes.windows(n.len()).any(|w| w == *n))
}

impl FrameworkAdapter for MigrationPrismaAdapter {
    fn name(&self) -> &'static str {
        ADAPTER_NAME
    }

    fn lang(&self) -> Lang {
        Lang::JavaScript
    }

    fn detect(
        &self,
        summary: &FuncSummary,
        _ast: tree_sitter::Node<'_>,
        file_bytes: &[u8],
    ) -> Option<FrameworkBinding> {
        let matches_call = super::any_callee_matches(summary, callee_is_prisma_migration);
        let matches_source = source_imports_prisma_migration(file_bytes);
        if matches_call || matches_source {
            Some(FrameworkBinding {
                adapter: ADAPTER_NAME.to_owned(),
                kind: EntryKind::Migration { version: None },
                route: None,
                request_params: Vec::new(),
                response_writer: None,
                middleware: Vec::new(),
            })
        } else {
            None
        }
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    fn parse_js(src: &[u8]) -> tree_sitter::Tree {
        let mut parser = tree_sitter::Parser::new();
        let lang = tree_sitter::Language::from(tree_sitter_javascript::LANGUAGE);
        parser.set_language(&lang).unwrap();
        parser.parse(src, None).unwrap()
    }

    #[test]
    fn fires_on_prisma_raw_migration() {
        let src: &[u8] = b"const { PrismaClient } = require('@prisma/client');\nconst prisma = new PrismaClient();\n\
            async function up(name) { await prisma.$executeRawUnsafe('CREATE TABLE ' + name); }\n";
        let tree = parse_js(src);
        let summary = FuncSummary {
            name: "up".into(),
            ..Default::default()
        };
        let binding = MigrationPrismaAdapter
            .detect(&summary, tree.root_node(), src)
            .expect("prisma migration binds");
        assert_eq!(binding.adapter, "migration-prisma");
        assert!(matches!(binding.kind, EntryKind::Migration { .. }));
    }
}