prax-orm-cli 0.11.1

//! Integration tests for the Prax CLI

use assert_cmd::Command;
use predicates::prelude::*;
use std::fs;
use tempfile::TempDir;

/// Get the prax binary
#[allow(deprecated)]
fn prax_cmd() -> Command {
    Command::cargo_bin("prax").unwrap()
}

#[test]
fn test_help_command() {
    prax_cmd()
        .arg("--help")
        .assert()
        .success()
        .stdout(predicate::str::contains("Prax CLI"))
        .stdout(predicate::str::contains("Usage: prax <COMMAND>"))
        .stdout(predicate::str::contains("init"))
        .stdout(predicate::str::contains("generate"))
        .stdout(predicate::str::contains("migrate"))
        .stdout(predicate::str::contains("db"));
}

#[test]
fn test_version_command() {
    // The workspace version is bumped on every release (see
    // `chore(release): bump workspace to X.Y.Z` commits). Pinning a
    // literal here means this test goes red on every bump; instead
    // read it from the test binary's CARGO_PKG_VERSION so the
    // assertion always reflects the version the CLI actually reports.
    prax_cmd()
        .arg("version")
        .assert()
        .success()
        .stdout(predicate::str::contains("Version"))
        .stdout(predicate::str::contains(env!("CARGO_PKG_VERSION")));
}

#[test]
fn test_init_help() {
    prax_cmd()
        .args(["init", "--help"])
        .assert()
        .success()
        .stdout(predicate::str::contains("Initialize a new Prax project"))
        .stdout(predicate::str::contains("--provider"));
}

#[test]
fn test_generate_help() {
    prax_cmd()
        .args(["generate", "--help"])
        .assert()
        .success()
        .stdout(predicate::str::contains("Generate Rust client code"))
        .stdout(predicate::str::contains("--schema"));
}

#[test]
fn test_migrate_help() {
    prax_cmd()
        .args(["migrate", "--help"])
        .assert()
        .success()
        .stdout(predicate::str::contains("migration commands"))
        .stdout(predicate::str::contains("dev"))
        .stdout(predicate::str::contains("deploy"))
        .stdout(predicate::str::contains("reset"))
        .stdout(predicate::str::contains("status"));
}

#[test]
fn test_db_help() {
    prax_cmd()
        .args(["db", "--help"])
        .assert()
        .success()
        .stdout(predicate::str::contains("database operations"))
        .stdout(predicate::str::contains("push"))
        .stdout(predicate::str::contains("pull"));
}

#[test]
fn test_validate_help() {
    prax_cmd()
        .args(["validate", "--help"])
        .assert()
        .success()
        .stdout(predicate::str::contains("validation"));
}

#[test]
fn test_format_help() {
    prax_cmd()
        .args(["format", "--help"])
        .assert()
        .success()
        .stdout(predicate::str::contains("Format schema"));
}

#[test]
fn test_init_creates_project_structure() {
    let temp_dir = TempDir::new().unwrap();
    let project_name = "test_project";

    prax_cmd()
        .current_dir(temp_dir.path())
        .args(["init", project_name, "--yes", "--provider", "postgresql"])
        .assert()
        .success()
        .stdout(predicate::str::contains("initialized successfully"));

    let project_path = temp_dir.path().join(project_name);
    assert!(project_path.exists(), "Project directory should exist");
    // Schema is in prax/ directory
    assert!(
        project_path.join("prax").join("schema.prax").exists(),
        "prax/schema.prax should exist"
    );
    // Config is in project root
    assert!(
        project_path.join("prax.toml").exists(),
        "prax.toml should exist"
    );
    // Migrations are in prax/ directory
    assert!(
        project_path.join("prax").join("migrations").exists(),
        "prax/migrations directory should exist"
    );
    // Note: src directory may not be created immediately, depends on implementation
}

#[test]
fn test_init_with_different_providers() {
    for provider in ["postgresql", "mysql", "sqlite"] {
        let temp_dir = TempDir::new().unwrap();
        let project_name = format!("test_{}", provider);

        prax_cmd()
            .current_dir(temp_dir.path())
            .args(["init", &project_name, "--yes", "--provider", provider])
            .assert()
            .success();

        let config_path = temp_dir.path().join(&project_name).join("prax.toml");
        assert!(config_path.exists());

        let config_content = fs::read_to_string(config_path).unwrap();
        assert!(config_content.contains(provider));
    }
}

#[test]
fn test_validate_with_valid_schema() {
    let temp_dir = TempDir::new().unwrap();
    let schema_path = temp_dir.path().join("schema.prax");

    let schema_content = r#"
model User {
    id    Int    @id @auto
    name  String
    email String @unique
}
"#;
    fs::write(&schema_path, schema_content).unwrap();

    prax_cmd()
        .args(["validate", "--schema", schema_path.to_str().unwrap()])
        .assert()
        .success()
        .stdout(predicate::str::contains("valid"));
}

#[test]
fn test_validate_with_invalid_schema() {
    let temp_dir = TempDir::new().unwrap();
    let schema_path = temp_dir.path().join("schema.prax");

    let schema_content = r#"
model User {
    id    Int    @id @auto
    name  String
    email String @unique
    // Missing closing brace
"#;
    fs::write(&schema_path, schema_content).unwrap();

    prax_cmd()
        .args(["validate", "--schema", schema_path.to_str().unwrap()])
        .assert()
        .failure();
}

#[test]
fn test_format_schema() {
    let temp_dir = TempDir::new().unwrap();
    let schema_path = temp_dir.path().join("schema.prax");

    let schema_content = r#"
datasource db {
  provider = "mysql"
  url = env("DATABASE_URL")
}

model   User{
id Int @id @auto
name String
email String @unique
}
"#;
    fs::write(&schema_path, schema_content).unwrap();

    // Format command should succeed and output the formatted schema
    prax_cmd()
        .args(["format", "--schema", schema_path.to_str().unwrap()])
        .assert()
        .success();

    // Formatting must preserve the declared datasource rather than
    // rewriting it to the old hardcoded postgresql default, and must
    // not inject a generator block the schema never declared.
    let formatted = fs::read_to_string(&schema_path).unwrap();
    assert!(
        formatted.contains("provider = \"mysql\""),
        "format rewrote the datasource provider:\n{formatted}"
    );
    assert!(
        !formatted.contains("postgresql"),
        "format injected a hardcoded postgresql provider:\n{formatted}"
    );
    assert!(
        !formatted.contains("generator client"),
        "format injected a hardcoded generator block:\n{formatted}"
    );
}

#[test]
fn test_generate_missing_schema() {
    let temp_dir = TempDir::new().unwrap();
    let schema_path = temp_dir.path().join("nonexistent.prax");

    prax_cmd()
        .args(["generate", "--schema", schema_path.to_str().unwrap()])
        .assert()
        .failure();
}

#[test]
fn test_migrate_status_no_config() {
    let temp_dir = TempDir::new().unwrap();

    // Without a prax.toml config, migrate status should fail with an error
    let _result = prax_cmd()
        .current_dir(temp_dir.path())
        .args(["migrate", "status"])
        .assert();

    // It should either fail or report no config found
    // Don't assert on specific error message since implementation may vary
}

#[test]
fn test_invalid_command() {
    prax_cmd()
        .arg("invalid_command")
        .assert()
        .failure()
        .stderr(predicate::str::contains("error"));
}

#[test]
fn test_global_options() {
    // Test --version flag. Same rationale as test_version_command:
    // read the expected version from CARGO_PKG_VERSION so workspace
    // bumps don't require edits to the test literal.
    prax_cmd()
        .arg("--version")
        .assert()
        .success()
        .stdout(predicate::str::contains(env!("CARGO_PKG_VERSION")));
}

/// `prax generate` must emit the trait impls the runtime needs to round-trip
/// rows back into model structs (`FromRow`) and to extract primary key /
/// column values from a model instance (`ModelWithPk`). The per-model
/// operations struct must also be named `Client<E>` so the
/// `prax::client!(...)` macro can find `<snake_name>::Client<E>` by path
/// — same convention as the `#[derive(Model)]` path. Without these the
/// generated code compiles but cannot decode rows or be wired into the
/// `client!` macro, which is the gap this test guards.
#[test]
fn test_generate_emits_runtime_trait_impls_and_client_struct() {
    let temp_dir = TempDir::new().unwrap();
    let schema_path = temp_dir.path().join("schema.prax");
    let schema_content = r#"
datasource db {
  provider = "postgresql"
  url = "postgres://localhost/test"
}

model User {
  id    Int    @id @auto
  email String @unique
  name  String
}
"#;
    fs::write(&schema_path, schema_content).unwrap();

    let output_dir = temp_dir.path().join("out");
    prax_cmd()
        .args([
            "generate",
            "--schema",
            schema_path.to_str().unwrap(),
            "--output",
            output_dir.to_str().unwrap(),
        ])
        .assert()
        .success();

    let user_module = fs::read_to_string(output_dir.join("user.rs")).expect("user.rs not emitted");

    // FromRow impl present and uses FromColumn to decode each scalar field.
    assert!(
        user_module.contains("impl prax_query::row::FromRow for User"),
        "user.rs missing FromRow impl:\n{user_module}"
    );
    assert!(
        user_module.contains("FromColumn>::from_column(row, \"email\")"),
        "user.rs FromRow does not decode email column:\n{user_module}"
    );

    // ModelWithPk impl present with pk_value and get_column_value.
    assert!(
        user_module.contains("impl prax_query::traits::ModelWithPk for User"),
        "user.rs missing ModelWithPk impl:\n{user_module}"
    );
    assert!(
        user_module.contains("fn pk_value(&self)"),
        "user.rs ModelWithPk missing pk_value:\n{user_module}"
    );
    // prettyplease wraps long signatures; match the function name +
    // first parameter without whitespace-sensitive assertions.
    assert!(
        user_module.contains("fn get_column_value(") && user_module.contains("column: &str"),
        "user.rs ModelWithPk missing get_column_value:\n{user_module}"
    );

    // Operations struct is named `Client<E>` (not `UserOperations<E>`) so
    // `prax::client!` can dispatch via `user::Client::new(...)`.
    assert!(
        user_module.contains("pub struct Client<E: prax_query::QueryEngine>"),
        "user.rs missing per-model Client<E> struct:\n{user_module}"
    );
    assert!(
        !user_module.contains("UserOperations"),
        "user.rs still emits the legacy UserOperations<E> name:\n{user_module}"
    );

    // The top-level client accessor must call `user::Client::new(...)`.
    let mod_rs = fs::read_to_string(output_dir.join("mod.rs")).expect("mod.rs not emitted");
    assert!(
        mod_rs.contains("user::Client::new(self.engine.clone())"),
        "mod.rs accessor not routed through user::Client:\n{mod_rs}"
    );
}

/// Consumer repos run `cargo fmt --check` in CI. Before this change
/// the generator wrote string-concatenated Rust that did not satisfy
/// rustfmt, forcing every consumer to either exclude the generated
/// tree via `rustfmt.toml` or let the fmt drift surface as rework on
/// every PR. Piping through prettyplease gives us:
///
///   1. Parseable output — if `syn::parse_file` rejects the string,
///      a generator bug has landed unformatted Rust (fallback exists
///      but is meant to be unreachable).
///   2. Idempotent formatting — prettyplease is deterministic across
///      rustc versions, so CI can safely gate on its output without
///      a rustfmt-edition lock.
///
/// This test locks both properties by calling the CLI and asserting
/// that every emitted file parses clean and that running prettyplease
/// again produces the same bytes.
#[test]
fn test_generate_emits_prettyplease_formatted_rust() {
    let temp_dir = TempDir::new().unwrap();
    let schema_path = temp_dir.path().join("schema.prax");
    let schema_content = r#"
datasource db {
  provider = "postgresql"
  url = "postgres://localhost/test"
}

model User {
  id    Int    @id @auto
  email String @unique
  name  String
}

model Post {
  id      Int    @id @auto
  title   String
  userId  Int    @map("user_id")
}

enum Role {
  Admin
  Member
}
"#;
    fs::write(&schema_path, schema_content).unwrap();

    let output_dir = temp_dir.path().join("out");
    prax_cmd()
        .args([
            "generate",
            "--schema",
            schema_path.to_str().unwrap(),
            "--output",
            output_dir.to_str().unwrap(),
        ])
        .assert()
        .success();

    // Every emitted .rs must parse as a Rust file and survive a
    // round-trip through prettyplease unchanged. If the assertion
    // fails the generator is emitting shapes syn can't parse or
    // strings prettyplease would re-flow — the whole point of
    // routing through prettyplease is that the output is the
    // canonical form on the first pass.
    let expected_files = [
        "mod.rs",
        "user.rs",
        "post.rs",
        "role.rs",
        "types.rs",
        "filters.rs",
    ];
    for name in expected_files {
        let path = output_dir.join(name);
        let raw = fs::read_to_string(&path)
            .unwrap_or_else(|e| panic!("expected file {} to exist: {}", name, e));
        let parsed = syn::parse_file(&raw)
            .unwrap_or_else(|e| panic!("{} did not parse as Rust:\n{}\nerror: {}", name, raw, e));
        let reformatted = prettyplease::unparse(&parsed);
        assert_eq!(
            raw, reformatted,
            "{} is not prettyplease-stable: the generator emitted a shape \
             prettyplease re-flowed on the second pass",
            name
        );
    }
}

#[test]
fn test_import_prisma_directory_creates_mirrored_prax_directory() {
    let input = TempDir::new().unwrap();
    fs::create_dir_all(input.path().join("models")).unwrap();
    fs::write(
        input.path().join("schema.prisma"),
        r#"datasource db { provider = "postgresql" url = env("X") }"#,
    )
    .unwrap();
    fs::write(
        input.path().join("models/u.prisma"),
        "model U { id Int @id @default(autoincrement()) }",
    )
    .unwrap();

    let output_dir = TempDir::new().unwrap();
    prax_cmd()
        .arg("import")
        .arg("--from")
        .arg("prisma")
        .arg("--input")
        .arg(input.path())
        .arg("--output")
        .arg(output_dir.path())
        .arg("--force")
        .assert()
        .success();

    assert!(output_dir.path().join("schema.prax").exists());
    assert!(output_dir.path().join("models/u.prax").exists());
}