Makefile

# Where's That MUNI? — build / test / lint / deploy
#
# Local dev runs under X11/Wayland (Fyne uses OpenGL via GLFW). The deploy target
# is a Raspberry Pi 3 + 5" touchscreen running labwc (Wayland) with XWayland.

BINARY   := muni-display
PKG      := ./cmd/muni-display

# Deploy target. Override on the command line (make deploy PI_HOST=...), or set
# PI_HOST / PI_DIR in .env (gitignored) alongside the API key so `make deploy`
# needs no arguments. The ?= defaults below apply only when .env omits them.
-include .env
PI_HOST  ?= pi@raspberrypi.local
PI_DIR   ?= /home/pi/wheres-that-muni
SHOT     ?= pi-screenshot.png

# Prefer golangci-lint on PATH, otherwise fall back to the one in GOPATH/bin.
GOLANGCI ?= $(shell command -v golangci-lint 2>/dev/null || echo "$(shell go env GOPATH)/bin/golangci-lint")

.DEFAULT_GOAL := help
.PHONY: help all build run test lint lint-install tidy fmt vet clean deploy build-pi screenshot

help: ## Show this help
	@echo "Where's That MUNI? — make targets:"
	@grep -E '^[a-zA-Z_-]+:.*?## .*$$' $(MAKEFILE_LIST) \
		| awk 'BEGIN {FS = ":.*?## "}; {printf "  \033[36m%-12s\033[0m %s\n", $$1, $$2}'

all: test lint build ## Test, lint, then build

build: ## Compile the binary for the local machine
	go build -o $(BINARY) $(PKG)

run: ## Run the app locally (needs an X11/Wayland session)
	go run $(PKG)

test: ## Run all unit tests
	go test ./...

lint: ## Run golangci-lint (see lint-install)
	$(GOLANGCI) run ./...

lint-install: ## Install golangci-lint into GOPATH/bin
	GOTOOLCHAIN=auto go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@latest

tidy: ## Sync go.mod/go.sum
	go mod tidy

fmt: ## Format all Go sources
	go fmt ./...

vet: ## Run go vet
	go vet ./...

clean: ## Remove build artifacts
	rm -f $(BINARY)
	rm -rf dist/

deploy: ## Sync source to the Pi and build it natively there
	rsync -av --exclude '.git' --exclude '.env' --exclude '$(BINARY)' \
		./ $(PI_HOST):$(PI_DIR)/
	ssh $(PI_HOST) 'cd $(PI_DIR) && GOTOOLCHAIN=auto go build -o $(BINARY) $(PKG)'

build-pi: ## Build ON the Pi (after a git pull / rsync)
	GOTOOLCHAIN=auto go build -o $(BINARY) $(PKG)

screenshot: ## Grab the Pi's screen to SHOT (default pi-screenshot.png)
	@ssh $(PI_HOST) 'rt=/run/user/$$(id -u); XDG_RUNTIME_DIR=$$rt WAYLAND_DISPLAY=$$(basename $$(ls "$$rt"/wayland-[0-9] 2>/dev/null | head -1)) grim -' > $(SHOT) \
		&& test -s $(SHOT) && echo "saved $(SHOT)" \
		|| { echo "screenshot failed (is the graphical session up and grim installed?)"; rm -f $(SHOT); exit 1; }