Fix merge conflicts

.gitignore

@@ -158,7 +158,7 @@ cython_debug/
 #  be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
-#.idea/
+.idea/
 
 # ---> JetBrains
 # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider

MILESTONES.md

@@ -0,0 +1,123 @@
+### FunkyJuice Recipes — Project Milestones
+
+This document outlines the sequence of milestones to deliver the FunkyJuice Recipes desktop app using Toga, Peewee (SQLite), and Briefcase. Each milestone is scoped to be achievable in a short iteration and includes clear acceptance criteria.
+
+---
+
+### Milestone 1 — Project skeleton and tooling
+- Set up `src/funkyjuicerecipes/` package layout per README.
+- Add minimal `app.py` with `FunkyJuiceRecipesApp` and `main()` returning the app.
+- Configure `pyproject.toml` (already added) and ensure `briefcase dev` can start a blank window.
+- Add `tests/` folder and test runner config.
+
+Acceptance:
+- `briefcase dev` launches an empty Toga window titled “FunkyJuice Recipes”.
+- `pytest` runs (even with zero or smoke tests).
+
+---
+
+### Milestone 2 — Database initialization and migrations framework
+- Implement `data/db.py` using `app.paths.data` and Peewee pragmas (`foreign_keys=1`, WAL).
+- Create migrations table and a simple migration runner that detects unapplied migration files by filename.
+- Implement initial migrations for `flavor`, `recipe`, and `recipe_flavor` tables matching README DDL.
+
+Acceptance:
+- On first launch, DB file is created in the per‑user data directory, tables exist, and migrations table is populated.
+- Subsequent launches do not re-run applied migrations.
+
+---
+
+### Milestone 3 — Peewee models and DAOs
+- Implement `Flavor`, `Recipe`, `RecipeFlavor` models reflecting constraints (UNIQUEs, FKs, CHECKs where applicable in logic).
+- Provide DAO/helper functions for common ops (create/list/get/update/delete) with soft-delete semantics for flavors.
+- Enable case-insensitive uniqueness for `Flavor(name, company)`.
+
+Acceptance:
+- Unit tests can create flavors (no duplicates ignoring case), recipes, and link ingredients; soft-deleted flavors are excluded by default queries.
+
+---
+
+### Milestone 4 — Calculation engine
+- Implement pure functions in `logic/calculations.py` to compute PG/VG/Nic and per-flavor mL from inputs (percents + size).
+- Include validation (non-negative PG/VG; base_pg + base_vg = 100; percent totals ≈ 100 within tolerance).
+- Define rounding/display policy (e.g., 1 decimal for View screen).
+
+Acceptance:
+- Tests cover the README example (120 mL case) and edge cases (nic in PG vs VG, excessive flavor %).
+
+---
+
+### Milestone 5 — Main window and navigation shell
+- Build `MainWindow`: menu bar (File/New Recipe/Exit; Help/About), buttons for Inventory, recipe list placeholder.
+- Wire basic screens/routes (View Recipe, Add/Edit Recipe, Inventory) with placeholders.
+
+Acceptance:
+- App displays main list and can navigate to empty placeholder screens and back.
+
+---
+
+### Milestone 6 — Inventory screen (CRUD + soft delete)
+- Implement `FlavorsTable` with add/edit/delete.
+- Enforce no duplicates; on delete, soft-delete if referenced by recipes; otherwise hard-delete.
+- Provide toggle to view soft-deleted flavors and actions to undelete or hard-delete when safe.
+
+Acceptance:
+- Users can manage flavors per README, with correct soft/hard delete behavior.
+
+---
+
+### Milestone 7 — Add/Edit Recipe screens
+- Implement `RecipeForm` with PG/VG base, Nic % and base, size, and flavor lines (select existing flavors + percentage).
+- Auto-maintain PG + VG = 100; prevent negatives.
+- On save: validate, combine duplicate flavors (prompt as specified), persist recipe + ingredients.
+
+Acceptance:
+- Users can create and edit recipes meeting validation rules and duplicate-combine flow.
+
+---
+
+### Milestone 8 — View Recipe screen
+- Render computed components (PG, VG, Nic, flavors) using calculation engine, rounded to 1 decimal.
+- Support view mode toggle: Individual Flavors vs Flavor Prep total.
+- Provide action to open Edit, Delete confirmation, and Inventory.
+
+Acceptance:
+- A saved recipe displays correct amounts; toggle updates view accordingly.
+
+---
+
+### Milestone 9 — Flavor Prep mixer utility
+- Implement “Mix Flavor Prep” dialog/workflow computing batch amounts from recipe flavor ratios for selectable sizes (10/30/120 mL, etc.).
+- No persistence for Flavor Prep (ephemeral), but support printing/exporting batch breakdown (optional CSV).
+
+Acceptance:
+- Users can choose a batch size and see per-flavor mL for the prep; closing returns to View Recipe.
+
+---
+
+### Milestone 10 — Polishing, About, and edge behaviors
+- Implement About dialog (app name, version, author).
+- Confirm unsaved-changes prompts on screen change and app exit while editing.
+- Empty states, error dialogs, and friendly validation messages.
+
+Acceptance:
+- UX polish complete; no obvious dead-ends; dialogs work across platforms.
+
+---
+
+### Milestone 11 — Packaging and distribution
+- Verify `briefcase dev` on target OS; add icons under `resources/`.
+- Build installers with Briefcase for target platforms.
+- Document install/run instructions and DB location.
+
+Acceptance:
+- Installers build successfully; smoke test of installed app passes.
+
+---
+
+### Milestone 12 — Testing and CI (optional but recommended)
+- Add unit tests for models/DAOs and calculations; UI smoke tests using Toga Dummy backend where feasible.
+- Set up a simple CI (e.g., GitHub Actions) to run tests on push.
+
+Acceptance:
+- CI passes on main branch; coverage of calculation and DAO logic acceptable.

SPECS.md

@@ -0,0 +1,332 @@
+# FunkyJuice Recipes
+A python application for managing e-juice recipes
+* Uses SQLite3 as database
+* Uses Toga as GUI
+* Uses Peewee ORM
+  * Separate files per model
+  * Separate files per migration
+  * Migrations for database schema changes using `playhouse.migrate`
+  * Migrations are versioned via the date they were created (YYYY-MM-DD_migration_name.py)
+  * Migrations state is stored in a Migrations table in the database
+  * Migrations table does not use a migration file of its own
+  * Migrations are run automatically on startup (check migration files vs database entries in migrations table)
+* At startup
+  * The app creates (if missing) the per‑user data directory at `app.paths.data`
+  * The app stores the SQLite DB at `<app.paths.data>/funkyjuicerecipes.data`.
+  * The connection enables pragmas: `{'foreign_keys': 1, 'journal_mode': 'wal', 'synchronous': 1}`. 
+  * Tests use a temporary DB path.
+* Uses class wrappers for Toga widgets
+  * FunkyJuiceRecipesApp(toga.App)
+  * MainWindow(toga.MainWindow)
+  * RecipesTable(toga.Table)
+  * RecipeForm(toga.Box -> with form elements as needed)
+  * AddRecipeButton(toga.Button)
+  * EditRecipeButton(toga.Button)
+  * DeleteRecipeButton(toga.Button -> with confirmation dialog)
+  * FlavorsTable(toga.Table)
+  * AddFlavorButton(toga.Button)
+  * EditFlavorButton(toga.Button)
+  * DeleteFlavorButton(toga.Button -> with confirmation dialog)
+  * FlavorForm(toga.Box -> with form elements as needed)
+* Uses briefcase to package app for distribution
+* Code follows PEP8
+* Code follows SOLID principles
+* SRP at method level
+
+## How to Run
+* `pip install briefcase`
+  * or `uv add briefcase`
+* `briefcase dev`
+  * or `python -m funkyjuicerecipes.app`
+
+## Flavors Soft Delete Policy
+* When a flavor is deleted
+  * Flavors are Soft Deleted if they are in a recipe.
+  * Flavors are Hard Deleted if they are not in a recipe.
+* Flavors can be Un-Deleted when viewing the Soft Deleted Flavors list.
+* Flavors can be Hard Deleted when viewing the Soft Deleted List and they are no longer in a recipe.
+* UI Queries default to `WHERE is_deleted = 0`
+* Hard Delete is only allowed when `NOT EXISTS (SELECT 1 FROM recipe_flavor WHERE flavor_id=flavor.id)`
+
+## Directory/File Structure
+* project-root/
+  * pyproject.toml
+  * README.md
+  * src/
+    * funkyjuicerecipes/
+      * __init__.py
+      * app.py          # Toga App subclass and `main()`
+      * ui/
+        * __init__.py
+        * buttons/
+          * __init__.py
+          * add_recipe_button.py
+          * edit_recipe_button.py
+          * delete_recipe_button.py
+          * add_flavor_button.py
+          * edit_flavor_button.py
+          * delete_flavor_button.py
+        * forms/
+          * __init__.py
+          * recipe_form.py
+          * flavor_form.py
+        * tables/
+          * __init__.py
+          * recipes_table.py
+          * flavors_table.py
+        * dialogs/
+          * __init__.py
+          * delete_recipe_confirmation.py
+          * delete_flavor_confirmation.py
+      * data/
+        * __init__.py
+        * db.py          # database init (Peewee SqliteDatabase, pragmas)
+        * models/
+          * __init__.py
+          * flavor.py
+          * recipe.py
+          * recipe_flavor.py
+        * migrations/
+          * __init__.py
+          * 2025-12-18_flavor_table_created.py
+          * 2025-12-18_recipe_table_created.py
+          * 2025-12-18_recipe_flavor_table_created.py
+      * logic/
+        * __init__.py
+        * calculations.py  # pure functions for PG/VG/nic/flavor math
+      * resources/       # icons, etc.
+  * tests/
+    * test_calculations.py
+
+## Requirements
+* Python 3.8+
+* Toga
+* Peewee
+* playhouse.migrate
+* Briefcase
+
+## DB Schema
+* Enable FKs on connection: `SqliteDatabase(path, pragmas={'foreign_keys': 1})`
+* Flavor Table
+```
+flavor(
+  id INTEGER PRIMARY KEY, 
+  name TEXT COLLATE NOCASE NOT NULL, 
+  company TEXT COLLATE NOCASE NOT NULL, 
+  base TEXT CHECK(base IN ('PG','VG')) NOT NULL, 
+  is_deleted INTEGER NOT NULL DEFAULT 0,
+  deleted_at DATETIME NULL,
+  UNIQUE(name, company)
+)
+CREATE INDEX IF NOT EXISTS idx_flavor_name_company ON flavor(name, company);
+```
+* Recipe Table
+```
+recipe(
+  id INTEGER PRIMARY KEY, 
+  name TEXT NOT NULL UNIQUE, 
+  size_ml INTEGER NOT NULL, 
+  base_pg_pct REAL NOT NULL, 
+  base_vg_pct REAL NOT NULL, 
+  nic_pct REAL CHECK(nic_pct >= 0 AND nic_pct <= 100) NOT NULL, 
+  nic_base TEXT CHECK(nic_base IN ('PG','VG')) NOT NULL,
+  CHECK (
+    base_pg_pct >= 0 AND
+    base_vg_pct >= 0 AND
+    base_pg_pct + base_vg_pct = 100
+  )
+)
+```
+* RecipeFlavor XREF Table 
+```
+recipe_flavor(
+  id INTEGER PRIMARY KEY, 
+  recipe_id INTEGER NOT NULL, 
+  flavor_id INTEGER NOT NULL, 
+  pct REAL CHECK(pct >= 0 AND pct <= 100) NOT NULL, 
+  FOREIGN KEY(recipe_id) 
+  REFERENCES recipe(id) ON DELETE CASCADE, 
+  FOREIGN KEY(flavor_id) REFERENCES flavor(id) ON DELETE RESTRICT, 
+  UNIQUE(recipe_id, flavor_id)
+)
+CREATE INDEX IF NOT EXISTS idx_recipe_flavor_recipe ON recipe_flavor(recipe_id);
+CREATE INDEX IF NOT EXISTS idx_recipe_flavor_flavor ON recipe_flavor(flavor_id);
+```
+* Migrations Table
+```
+migrations(
+  id INTEGER PRIMARY KEY,
+  batch INTEGER NOT NULL, 
+  filename TEXT NOT NULL,
+  date_run DATETIME NOT NULL,
+  UNIQUE(filename)
+)
+```
+
+## Recipes
+* Recipes require
+  * Name, 
+  * Size (ml), 
+  * PG Base %, 
+  * VG base %, 
+  * Nic Base (PG/VG) 
+  * Nic %, 
+  * Flavor List
+* Recipe equations are:
+  * flavor_pg_pct = sum(pct for flavor in flavors if flavor.base == 'PG')
+  * flavor_vg_pct = sum(pct for flavor in flavors if flavor.base == 'VG')
+  * pg_pct = base_pg_pct - flavor_pg_pct - (nic_pct if nic_base == 'PG' else 0)
+  * vg_pct = base_vg_pct - flavor_vg_pct - (nic_pct if nic_base == 'VG' else 0)
+  * PG_ml = pg_pct / 100 * size_ml
+  * VG_ml = vg_pct / 100 * size_ml
+  * Nic_ml = nic_pct / 100 * size_ml
+  * Flavor_i_ml = flavor_i.pct / 100 * size_ml
+* Recipe output is:
+  * Recipe Name
+  * Size (ml)
+  * PG: PG_ml
+  * VG: VG_ml
+  * Nic: Nic_ml
+  * Flavors
+    * If viewing individual flavors:
+      * Flavor 1 Name: Flavor_1_ml
+      * Flavor 2 Name: Flavor_2_ml
+    * if viewing Flavor Prep:
+      * "Flavor Prep": Flavor_Prep_ml (sum(pct for flavor in flavors)/100 * size_ml)
+
+## Main Screen
+* Menu Bar with File, Recipes, and Help
+  * File Menu
+    * New Recipe
+    * Exit
+  * Recipes Menu
+    * Shows a list of saved recipes as menu items
+      * Selecting menu item opens the recipe screen
+  * Help Menu
+    * About screen
+* Shows Saved Recipes List
+  * Recipe Name 
+  * Button to open the recipe screen (View only)
+  * Button to edit the recipe (Edit form)
+  * Button to delete the recipe (Confirmation dialog)
+* Has button on top to open Inventory Screen.
+
+## About Screen
+* Shows
+  * Application Name (FunkyJuice Recipes)
+  * Version Number
+  * Author (Funky Waddle)
+
+## View Recipe Screen
+* Needs access to soft deleted flavors for recipes that currently use deleted flavors.
+* Show components rounded to 1 decimal point
+  * Just convert percentage to decimal number and display, no need to validate sum(amounts) = Size (ml)
+  * We store the percent in the database, not the actual amount, so there is no check that the amount adds to size (ml), only that sum(percentages) = 100
+* Shows recipe name,
+* Amount in ml,
+* PG: PG_ml, (rounded to 1 decimal point)
+* VG: VG_ml, (rounded to 1 decimal point)
+* Nic: Nic_ml, (rounded to 1 decimal point)
+* Flavors
+  * If viewing individual flavors:
+    * Flavor 1 Name: Flavor_1_ml (rounded to 1 decimal point)
+    * Flavor 2 Name: Flavor_2_ml (rounded to 1 decimal point)
+  * if viewing Flavor Prep:
+    * Flavor Prep Amount
+* Has button to open Edit Recipe Screen
+* Has button to open Delete Recipe
+* Has button to open Inventory Screen
+* Has Drop Down for "View Recipe Using"
+  * Options are "Individual Flavors" or "Flavor Prep"
+  * When Flavor Prep is chosen, it replaces the list of flavors with a total ml of the sum of all the flavors in the recipe.
+  * When Individual Flavors is chosen (default), it replaces the Flavor Prep with the list of individual flavors.
+* Has button for "Mix Flavor Prep"
+  * Flavor Prep is not stored in database. It's calculated on the fly based on flavors in the recipe. 
+  * Shows recipe of Flavors only, no PG, VG, or Nicotine
+  * Flavor Prep is a batch of flavors
+    * Take ratio of each flavor to get total amount of each flavor (12% flavor 1 + 2% flavor 2 = 6:1 ratio)
+    * Flavor Prep batches of different sizes (10ml, 30ml, 120ml)
+    * Flavor Prep is just pre-mixing flavors, much like premixing flour and sugar for use in cookie batter. 
+      * You can make 10ml or 1000ml of Sugar Flour, and it won't change the amount used in the cookie recipe.
+      * You can pre-mix 1000ml of flavors, and use 10ml per recipe, giving you 100 batches of Flavor Prep.
+
+## Edit Recipe Screen
+* Needs access to soft deleted flavors for recipes that currently use deleted flavors.
+* Has a form for editing the recipe
+  * Name
+  * Size (mL) (10ml, 30ml, 120ml)
+  * PG Base %
+  * VG Base %
+  * Nic Base (PG or VG)
+  * Nic %
+  * Flavors
+    * Name (with company)
+    * Amount %
+  * If recipe contains a deleted flavor,
+    * Recipe can be saved with the deleted flavor still in the list, as long as it was not changed.
+    * Cannot actively change a flavor to a deleted flavor.
+  * Has button to save changes (Save form, then return to View Recipe screen)
+  * Has button to cancel changes (Discard form changes, return to View Recipe screen)
+  * Has button to delete recipe (Confirmation dialog)
+  * On Save, if recipe contains duplicate flavors,
+    * If duplicate flavor is found:
+      * Show question dialog to ask if user wants to "Combine the duplicate flavors" or "Cancel Save" and return to Edit Recipe screen.
+      * If user chooses to combine duplicate flavors,
+        * Combine flavors with same name and company into one flavor with combined percentage.
+      * If user chooses to cancel save,
+        * DO NOT SAVE and close dialog box, returning user to Edit Recipe screen.
+    * Validate that (PG Base + VG Base) === 100
+    * Validate that neither PG Base nor VG Base is < 0
+    * Validate sum(flavor.pct) + nic.pct + pg.pct + vg.pct ~= 100
+  * On App Exit, if on Edit Recipe screen and data has changed, ask to save changes before exiting.
+  * On Screen Change, if on Edit Recipe screen and data has changed, ask to save changes before changing screens.
+
+## Add Recipe Screen
+* Has a form for adding a recipe
+  * Name
+  * Size (mL) (10ml, 30ml, 120ml)
+  * PG Base %
+  * VG Base %
+  * Nic Base (PG or VG)
+  * Nic %
+  * Flavors
+    * Name
+    * Amount %
+  * Has button to save changes (Save form, then return to View Recipe screen)
+  * Has button to cancel changes (Discard form changes, return to View Recipe screen)
+  * On Save, if recipe contains duplicate flavors,
+    * If duplicate flavor is found:
+      * Show question dialog to ask if user wants to "Combine the duplicate flavors" or "Cancel Save" and return to Edit Recipe screen.
+      * If user chooses to combine duplicate flavors,
+        * Combine flavors with same name and company into one flavor with combined percentage.
+      * If user chooses to cancel save,
+        * DO NOT SAVE and close dialog box, returning user to Edit Recipe screen.
+    * Validate that (PG Base + VG Base) === 100
+    * Validate that neither PG Base nor VG Base is < 0
+    * Validate sum(flavor.pct) + nic.pct + pg.pct + vg.pct ~= 100
+  * On App Exit, if on Edit Recipe screen and data has changed, ask to save changes before exiting.
+    * On Screen Change, if on Edit Recipe screen and data has changed, ask to save changes before changing screens. 
+
+## Recipe Form Screens (Add/Edit)
+* When adding/editing a recipe, you enter the PG, VG, Flavors, and Nic as %
+  * PG and VG are entered as % of total recipe size
+  * When changing PG or VG, the other is updated automatically so that PG + VG is always 100%
+  * Neither PG or VG can be negative
+
+## Inventory Screen
+* List of all Non-Deleted Flavors saved in the database
+  * Flavor Name
+  * Company
+  * PG or VG Base
+* Has button to view Soft Deleted Flavors, and how many recipes they are in
+  * Can Hard Delete Soft Deleted Flavors if they are no longer in a recipe
+  * Can Un-Delete a Soft Deleted Flavor
+* Each Flavor has a button to edit the flavor (Name, Company, PG or VG Base)
+* Each Flavor has a button to delete the flavor
+  * When deleting a flavor,
+    * If flavor is in a recipe,
+      * Soft Delete the flavor
+      * Allow flavor data to be viewed in recipe, but with a strikethrough
+    * If flavor is not in a recipe,
+      * Hard Delete the flavor
+* NO DUPLICATES ALLOWED

pyproject.toml

@@ -0,0 +1,35 @@
+[project]
+name = "funkyjuicerecipes"
+version = "0.1.0"
+requires-python = ">=3.10"
+dependencies = [
+  "toga==0.5.3",
+  "peewee>=3.18.3"
+]
+
+[tool.uv]
+environments = [
+  "sys_platform == 'linux'",
+]
+
+[tool.briefcase]
+project_name = "FunkyJuice Recipes"
+bundle = "com.TargonProducts"
+version = "0.1.0"
+url = "https://example.com"
+author = "Funky Waddle"
+author_email = "you@example.com"
+license = "MIT"
+
+[tool.briefcase.app.funkyjuicerecipes]
+formal_name = "FunkyJuice Recipes"
+description = "A python application for managing e-juice recipes"
+sources = ["src/funkyjuicerecipes"]
+requires = ["toga==0.5.3", "peewee>=3.18.3"]
+icon = "src/funkyjuicerecipes/resources/icon"
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+
+[tool.setuptools.packages.find]
+where = ["src"]

uv.lock

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+]
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+]
+
+[[package]]
+name = "funkyjuicerecipes"
+version = "0.1.0"
+source = { virtual = "." }
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+
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