//! Plan kalemleri ve notlar.

mod common;

use axum::http::StatusCode;
use common::{Session, TestApp};
use mongodb::bson::{Document, doc};
use serde_json::{Value, json};

async fn open_period(app: &TestApp, s: &Session, start: &str, end: &str) -> String {
    let (st, p) = app
        .post(
            "/periods",
            s,
            json!({ "start_date": start, "end_date": end }),
        )
        .await;
    assert_eq!(st, StatusCode::CREATED, "{p}");
    p["id"].as_str().unwrap().to_string()
}

async fn close_period(app: &TestApp, id: &str) {
    let uuid = mongodb::bson::Uuid::parse_str(id).unwrap();
    app.db
        .collection::<Document>("periods")
        .update_one(
            doc! { "_id": uuid },
            doc! { "$set": { "status": "closed" } },
        )
        .await
        .unwrap();
}

fn names(list: &Value) -> Vec<String> {
    list.as_array()
        .unwrap()
        .iter()
        .map(|i| {
            format!(
                "{}:{}",
                i["kind"].as_str().unwrap(),
                i["name"].as_str().unwrap()
            )
        })
        .collect()
}

#[tokio::test]
async fn plan_items_crud_and_validation() {
    let app = TestApp::new().await;
    let s = app.register("Test", None).await;
    let pid = open_period(&app, &s, "2026-12-01", "2027-01-01").await;
    let items = format!("/periods/{pid}/plan-items");

    // Gider önce eklense de liste gelirle başlar
    let (st, rent) = app
        .post(
            &items,
            &s,
            json!({ "kind": "expense", "name": "Kira", "amount": 1_500_000, "date": "2026-12-05" }),
        )
        .await;
    assert_eq!(st, StatusCode::CREATED, "{rent}");
    app.post(
        &items,
        &s,
        json!({ "kind": "income", "name": "Maaş", "amount": 4_500_000 }),
    )
    .await;
    app.post(
        &items,
        &s,
        json!({ "kind": "expense", "name": "İnternet", "amount": 45_000 }),
    )
    .await;
    let (_, list) = app.get(&items, &s).await;
    assert_eq!(
        names(&list),
        vec!["income:Maaş", "expense:Kira", "expense:İnternet"]
    );
    assert_eq!(list[0]["date"], Value::Null);

    // Doğrulamalar
    for bad in [
        json!({ "kind": "expense", "name": "X", "amount": 0 }),
        json!({ "kind": "expense", "name": "  ", "amount": 100 }),
        json!({ "kind": "expense", "name": "X", "amount": 100, "date": "2027-01-01" }), // dönem dışı (bitiş hariç)
        json!({ "kind": "expense", "name": "X", "amount": 100, "date": "05.12.2026" }),
        json!({ "kind": "gift", "name": "X", "amount": 100 }),
    ] {
        let (st, _) = app.post(&items, &s, bad.clone()).await;
        assert_eq!(st, StatusCode::BAD_REQUEST, "{bad}");
    }

    // Düzenle: tutar + tarihi kaldır; eski sürüm → 409
    let rent_path = format!("/plan-items/{}", rent["id"].as_str().unwrap());
    let (st, upd) = app
        .patch(
            &rent_path,
            &s,
            json!({ "amount": 1_600_000, "date": "", "version": 1 }),
        )
        .await;
    assert_eq!(st, StatusCode::OK, "{upd}");
    assert_eq!(
        (upd["amount"].as_i64(), &upd["date"]),
        (Some(1_600_000), &Value::Null)
    );
    let (st, _) = app
        .patch(&rent_path, &s, json!({ "name": "Y", "version": 1 }))
        .await;
    assert_eq!(st, StatusCode::CONFLICT);

    // Sil → listeden çıkar
    assert_eq!(app.delete(&rent_path, &s).await.0, StatusCode::NO_CONTENT);
    let (_, list) = app.get(&items, &s).await;
    assert_eq!(names(&list), vec!["income:Maaş", "expense:İnternet"]);

    app.cleanup().await;
}

#[tokio::test]
async fn copy_previous_shifts_dates_and_skips_duplicates() {
    let app = TestApp::new().await;
    let s = app.register("Test", None).await;
    let dec = open_period(&app, &s, "2026-12-01", "2027-01-01").await;
    let dec_items = format!("/periods/{dec}/plan-items");
    app.post(
        &dec_items,
        &s,
        json!({ "kind": "income", "name": "Maaş", "amount": 4_500_000, "date": "2026-12-15" }),
    )
    .await;
    app.post(
        &dec_items,
        &s,
        json!({ "kind": "expense", "name": "Kira", "amount": 1_500_000, "date": "2026-12-05" }),
    )
    .await;
    app.post(
        &dec_items,
        &s,
        json!({ "kind": "expense", "name": "Aidat", "amount": 80_000 }),
    )
    .await;
    app.post(
        &dec_items,
        &s,
        json!({ "kind": "expense", "name": "Fatura", "amount": 90_000, "date": "2026-12-31" }),
    )
    .await;
    close_period(&app, &dec).await;

    let jan = open_period(&app, &s, "2027-01-01", "2027-02-01").await;
    let jan_items = format!("/periods/{jan}/plan-items");
    // Kullanıcı kirayı elle zaten eklemiş (farklı tutarla) → kopyada atlanmalı
    app.post(
        &jan_items,
        &s,
        json!({ "kind": "expense", "name": "kira", "amount": 1_700_000 }),
    )
    .await;

    let (st, res) = app
        .post(&format!("{jan_items}/copy-previous"), &s, json!({}))
        .await;
    assert_eq!(st, StatusCode::OK, "{res}");
    assert_eq!(res["added"], 3);

    let (_, list) = app.get(&jan_items, &s).await;
    let by_name = |n: &str| {
        list.as_array()
            .unwrap()
            .iter()
            .find(|i| i["name"] == n)
            .unwrap()
            .clone()
    };
    assert_eq!(by_name("Maaş")["date"], "2027-01-15", "göreli gün korunur");
    assert_eq!(by_name("Aidat")["date"], Value::Null);
    assert_eq!(by_name("kira")["amount"], 1_700_000, "elle eklenen korunur");

    assert_eq!(by_name("Fatura")["date"], "2027-01-31");

    // Ocak → Şubat (28 gün): 31 Ocak'taki fatura dönem dışına taşar → son güne (28 Şubat) çekilir
    close_period(&app, &jan).await;
    let feb = open_period(&app, &s, "2027-02-01", "2027-03-01").await;
    let feb_items = format!("/periods/{feb}/plan-items");
    app.post(&format!("{feb_items}/copy-previous"), &s, json!({}))
        .await;
    let (_, feb_list) = app.get(&feb_items, &s).await;
    let fatura = feb_list
        .as_array()
        .unwrap()
        .iter()
        .find(|i| i["name"] == "Fatura")
        .unwrap();
    assert_eq!(fatura["date"], "2027-02-28");

    // İkinci kez → hiçbir şey eklenmez (Ocak kapalı olduğu için Şubat'ta deniyoruz)
    let (_, res) = app
        .post(&format!("{feb_items}/copy-previous"), &s, json!({}))
        .await;
    assert_eq!(res["added"], 0);

    // İlk dönemde önceki yok → 400
    let (st, _) = app
        .post(&format!("{dec_items}/copy-previous"), &s, json!({}))
        .await;
    assert!(
        st == StatusCode::BAD_REQUEST || st == StatusCode::CONFLICT,
        "{st}"
    );

    app.cleanup().await;
}

#[tokio::test]
async fn closed_period_is_read_only() {
    let app = TestApp::new().await;
    let s = app.register("Test", None).await;
    let pid = open_period(&app, &s, "2026-12-01", "2027-01-01").await;
    let (_, item) = app
        .post(
            &format!("/periods/{pid}/plan-items"),
            &s,
            json!({ "kind": "income", "name": "Maaş", "amount": 100 }),
        )
        .await;
    let (_, note) = app
        .post(
            &format!("/periods/{pid}/notes"),
            &s,
            json!({ "context": "planning", "title": "Hedef" }),
        )
        .await;
    close_period(&app, &pid).await;

    let item_path = format!("/plan-items/{}", item["id"].as_str().unwrap());
    let note_path = format!("/notes/{}", note["id"].as_str().unwrap());
    let checks = [
        app.post(
            &format!("/periods/{pid}/plan-items"),
            &s,
            json!({ "kind": "income", "name": "X", "amount": 1 }),
        )
        .await
        .0,
        app.patch(&item_path, &s, json!({ "amount": 5 })).await.0,
        app.delete(&item_path, &s).await.0,
        app.post(
            &format!("/periods/{pid}/notes"),
            &s,
            json!({ "context": "review", "title": "X" }),
        )
        .await
        .0,
        app.patch(&note_path, &s, json!({ "title": "Y" })).await.0,
        app.delete(&note_path, &s).await.0,
    ];
    assert!(
        checks.iter().all(|st| *st == StatusCode::CONFLICT),
        "{checks:?}"
    );

    // Okuma serbest
    assert_eq!(
        app.get(&format!("/periods/{pid}/plan-items"), &s).await.0,
        StatusCode::OK
    );
    assert_eq!(
        app.get(&format!("/periods/{pid}/notes"), &s).await.0,
        StatusCode::OK
    );

    app.cleanup().await;
}

#[tokio::test]
async fn notes_crud_and_context_filter() {
    let app = TestApp::new().await;
    let s = app.register("Test", None).await;
    let pid = open_period(&app, &s, "2026-12-01", "2027-01-01").await;
    let notes = format!("/periods/{pid}/notes");

    let (st, n) = app
        .post(&notes, &s, json!({ "context": "planning", "title": "  Tatil birikimi ", "body_md": "- Ocak'ta **5.000 ₺**" }))
        .await;
    assert_eq!(st, StatusCode::CREATED, "{n}");
    assert_eq!(n["title"], "Tatil birikimi");
    app.post(&notes, &s, json!({ "context": "review", "title": "Ders" }))
        .await;

    let (_, planning) = app.get(&format!("{notes}?context=planning"), &s).await;
    assert_eq!(planning.as_array().unwrap().len(), 1);
    let (_, all) = app.get(&notes, &s).await;
    assert_eq!(all.as_array().unwrap().len(), 2);

    let (st, _) = app
        .post(&notes, &s, json!({ "context": "planning", "title": "" }))
        .await;
    assert_eq!(st, StatusCode::BAD_REQUEST, "boş başlık");

    let path = format!("/notes/{}", n["id"].as_str().unwrap());
    let (st, upd) = app
        .patch(&path, &s, json!({ "body_md": "Güncel", "version": 1 }))
        .await;
    assert_eq!(
        (st, upd["body_md"].as_str()),
        (StatusCode::OK, Some("Güncel"))
    );
    assert_eq!(app.delete(&path, &s).await.0, StatusCode::NO_CONTENT);
    let (_, planning) = app.get(&format!("{notes}?context=planning"), &s).await;
    assert_eq!(planning, json!([]));

    app.cleanup().await;
}

#[tokio::test]
async fn plan_items_and_notes_are_isolated() {
    let app = TestApp::new().await;
    let a = app.register("A", None).await;
    let b = app.register("B", None).await;
    let pid = open_period(&app, &a, "2026-12-01", "2027-01-01").await;
    let (_, item) = app
        .post(
            &format!("/periods/{pid}/plan-items"),
            &a,
            json!({ "kind": "income", "name": "Maaş", "amount": 100 }),
        )
        .await;
    let (_, note) = app
        .post(
            &format!("/periods/{pid}/notes"),
            &a,
            json!({ "context": "planning", "title": "Gizli" }),
        )
        .await;

    let item_path = format!("/plan-items/{}", item["id"].as_str().unwrap());
    let note_path = format!("/notes/{}", note["id"].as_str().unwrap());
    let checks = [
        app.get(&format!("/periods/{pid}/plan-items"), &b).await.0,
        app.post(
            &format!("/periods/{pid}/plan-items"),
            &b,
            json!({ "kind": "income", "name": "X", "amount": 1 }),
        )
        .await
        .0,
        app.post(
            &format!("/periods/{pid}/plan-items/copy-previous"),
            &b,
            json!({}),
        )
        .await
        .0,
        app.patch(&item_path, &b, json!({ "amount": 1 })).await.0,
        app.delete(&item_path, &b).await.0,
        app.get(&format!("/periods/{pid}/notes"), &b).await.0,
        app.patch(&note_path, &b, json!({ "title": "X" })).await.0,
        app.delete(&note_path, &b).await.0,
    ];
    assert!(
        checks.iter().all(|st| *st == StatusCode::NOT_FOUND),
        "{checks:?}"
    );

    // A'nın verisi değişmedi
    let (_, list) = app.get(&format!("/periods/{pid}/plan-items"), &a).await;
    assert_eq!(list[0]["amount"], 100);
    assert_eq!(list[0]["version"], 1);

    app.cleanup().await;
}