From a0826ce054d7468444c67306191cc7e2fe734eb0 Mon Sep 17 00:00:00 2001
From: physcik <mynameisgennadiy@vk.com>
Date: Tue, 14 Apr 2026 18:27:22 +0500
Subject: ranged weapons CRUD

---
 backend/src/API/ErrorDescription.zig              |  3 +
 backend/src/API/WeaponsAPI.zig                    | 49 +++++++++++++--
 backend/src/Database/Connection.zig               |  1 +
 backend/src/Database/RangedWeaponsAccessLayer.zig | 74 +++++++++++++++++++++++
 4 files changed, 122 insertions(+), 5 deletions(-)
 create mode 100644 backend/src/API/ErrorDescription.zig

(limited to 'backend/src')

diff --git a/backend/src/API/ErrorDescription.zig b/backend/src/API/ErrorDescription.zig
new file mode 100644
index 0000000..922eb6f
--- /dev/null
+++ b/backend/src/API/ErrorDescription.zig
@@ -0,0 +1,3 @@
+pub const ErrorDescriptor = struct {
+    Message: []const u8
+};
diff --git a/backend/src/API/WeaponsAPI.zig b/backend/src/API/WeaponsAPI.zig
index d095944..1b0ae00 100644
--- a/backend/src/API/WeaponsAPI.zig
+++ b/backend/src/API/WeaponsAPI.zig
@@ -2,12 +2,15 @@ const std = @import("std");
 const httpz = @import("httpz");
 const model = @import("../Models/RangedWeapon.zig");
 const db = @import("../Database/Connection.zig");
+const errDesc = @import("ErrorDescription.zig");
 
 pub fn RegisterEndpoints(router: *httpz.Router(void, *const fn (*httpz.request.Request, *httpz.response.Response) anyerror!void)) void {
     router.get("/weapons", testEndpoint, .{});
+    router.get("/weapons/ranged", getAllRangedWeapons, .{});
     router.post("/weapons/ranged", newRangedWeapon, .{});
     router.get("/weapons/ranged/:id", getRangedWeaponById, .{});
-    router.get("/weapons/ranged", getAllRangedWeapons, .{});
+    router.put("/weapons/ranged/:id", updateRangedWeapon, .{});
+    router.delete("/weapons/ranged/:id", deleteRangedWeapon, .{});
 }
 
 fn testEndpoint(_: *httpz.Request, res: *httpz.Response) !void {
@@ -57,9 +60,45 @@ fn getRangedWeaponById(req: *httpz.Request, res: *httpz.Response) !void {
 }
 
 fn newRangedWeapon(req: *httpz.Request, res: *httpz.Response) !void {
-    if (try req.json(model.RangedWeaponType)) |new| {
-        try res.json(new, .{});
+    var body = try req.json(model.RangedWeaponType) orelse {
+        res.status = 400;
+        return;
+    };
+
+    db.RangedWeapons.Create(&body) catch |err| {
+        if (err == db.ResultErrors.AlreadyExists) {
+            res.status = 400;
+            try res.json(errDesc.ErrorDescriptor { 
+                .Message = "A weapon with that ID already exists"
+            }, .{});
+            return;
+        }
+        return err;
+    }; 
+
+    res.status = 201;
+}
+
+
+fn updateRangedWeapon(req: *httpz.Request, res: *httpz.Response) !void {
+    const id = req.param("id") orelse {
+        res.status = 400;
+        return;
+    };
+
+    var body = try req.json(model.RangedWeaponType) orelse {
+        res.status = 400;
+        return;
+    };
+
+    try db.RangedWeapons.Update(id, &body);
+}
+
+fn deleteRangedWeapon(req: *httpz.Request, res: *httpz.Response) !void {
+    const id = req.param("id") orelse {
+        res.status = 400;
         return;
-    }
-    res.status = 502;
+    };
+
+    try db.RangedWeapons.Delete(id);
 }
diff --git a/backend/src/Database/Connection.zig b/backend/src/Database/Connection.zig
index 623165f..e08760c 100644
--- a/backend/src/Database/Connection.zig
+++ b/backend/src/Database/Connection.zig
@@ -4,6 +4,7 @@ const dotenv = @import("dotenv");
 
 pub const ResultErrors = error {
     NotFound,
+    AlreadyExists
 };
 
 pub var pool: *pg.Pool = undefined;
diff --git a/backend/src/Database/RangedWeaponsAccessLayer.zig b/backend/src/Database/RangedWeaponsAccessLayer.zig
index ca41197..ff75244 100644
--- a/backend/src/Database/RangedWeaponsAccessLayer.zig
+++ b/backend/src/Database/RangedWeaponsAccessLayer.zig
@@ -29,3 +29,77 @@ pub fn GetByDisplayName(allocator: std.mem.Allocator, displayName: []const u8) !
     try row.deinit();
     return outp;
 }
+
+pub fn Update(displayName: []const u8, updatedModel: *model.RangedWeaponType) !void {
+    const query = 
+        \\ UPDATE RangedWeapons SET
+        \\ id = $1,
+        \\ name = $2,
+        \\ weapon_type = $3,
+        \\ accuracy = $4,
+        \\ concealability = $5,
+        \\ availability = $6,
+        \\ damage = $7,
+        \\ ammunition = $8,
+        \\ number_of_shots = $9,
+        \\ rate_of_fire = $10,
+        \\ reliability = $11,
+        \\ updated_at = CURRENT_TIMESTAMP
+        \\ WHERE id = $12
+        ;
+
+    _ = try conn.pool.exec(query, .{
+        updatedModel.Id,
+        updatedModel.Name,
+        updatedModel.WeaponType,
+        updatedModel.Accuracy,
+        updatedModel.Concealability,
+        updatedModel.Avaliability,
+        updatedModel.Damage,
+        updatedModel.Ammunition,
+        updatedModel.NumberOfShots,
+        updatedModel.RateOfFire,
+        updatedModel.Reliability,
+        displayName,
+    });
+}
+
+pub fn Create(NewWeapon: *model.RangedWeaponType) !void {
+    if (try Exists(NewWeapon.Id)) return conn.ResultErrors.AlreadyExists;
+    const query = 
+        \\ INSERT INTO RangedWeapons 
+        \\ (id, name, weapon_type, accuracy, concealability, availability, damage, ammunition, number_of_shots, rate_of_fire, reliability)
+        \\ VALUES
+        \\ ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)
+        ;
+
+    _ = try conn.pool.exec(query, .{
+        NewWeapon.Id,
+        NewWeapon.Name,
+        NewWeapon.WeaponType,
+        NewWeapon.Accuracy,
+        NewWeapon.Concealability,
+        NewWeapon.Avaliability,
+        NewWeapon.Damage,
+        NewWeapon.Ammunition,
+        NewWeapon.NumberOfShots,
+        NewWeapon.RateOfFire,
+        NewWeapon.Reliability,
+    });
+}
+
+pub fn Exists(displayName: []const u8) !bool {
+    const query = "SELECT Id FROM RangedWeapons WHERE Id = $1";
+    var row = try conn.pool.row(query, .{displayName}) orelse {
+        return false;
+    };
+    try row.deinit();
+    return true;
+}
+
+pub fn Delete(displayName: []const u8) !void {
+    const query = "DELETE FROM RangedWeapons WHERE Id = $1";
+    _ = try conn.pool.exec(query, .{
+        displayName,
+    });
+}
-- 
cgit v1.3