# -----------------------------------------
# Makefile – TIC-80 project builder
# -----------------------------------------

PROJECT = impostor

ORDER      = $(PROJECT).inc
OUTPUT     = $(PROJECT).lua
OUTPUT_ZIP = $(PROJECT).html.zip
OUTPUT_TIC = $(PROJECT).tic

SRC_DIR    = inc
SRC        = $(shell sed 's|^|$(SRC_DIR)/|' $(ORDER))

ASSETS_LUA = inc/meta/meta.assets.lua
ASSETS_DIR = assets
ASSET_TYPES = tiles sprites sfx music

LINT_TMP_LUA  := /tmp/_lint_combined.lua
LINT_TMP_MAP   := /tmp/_lint_map.txt

# CI/CD variables
VERSION_FILE = .version
GAME_LANG ?= lua
DROPAREA_HOST ?= vps.teletype.hu
DROPAREA_PORT ?= 2223
DROPAREA_TARGET_PATH ?= /home/drop
DROPAREA_USER ?= drop
UPDATE_SERVER ?= https://games.vps.teletype.hu

all: build

build: $(OUTPUT)

$(OUTPUT): $(SRC) $(ORDER)
	@rm -f $(OUTPUT)
	@sed 's/\r$$//' $(ORDER) | while read f; do \
		cat "$(SRC_DIR)/$$f" >> $(OUTPUT); \
		echo "" >> $(OUTPUT); \
	done

export: build
	@if [ -z "$(VERSION)" ]; then \
		echo "ERROR: VERSION not set!"; \
		exit 1; \
	fi
	@echo "==> Exporting HTML for version $(VERSION)"
	@tic80 --cli --skip --fs=. \
		--cmd="load $(OUTPUT) & save $(PROJECT)-$(VERSION) & export html $(PROJECT)-$(VERSION).html & exit"
	@echo "==> Creating versioned files"
	@if [ -f "$(PROJECT)-$(VERSION).tic" ]; then \
		cp $(PROJECT)-$(VERSION).tic $(PROJECT).tic; \
	fi
	@if [ -f "$(PROJECT)-$(VERSION).html.zip" ]; then \
		cp $(PROJECT)-$(VERSION).html.zip $(PROJECT).html.zip; \
	fi
	@echo "==> Generated files:"
	@ls -lh $(PROJECT)-$(VERSION).* $(PROJECT).tic $(PROJECT).html.zip 2>/dev/null || true

watch:
	make build
	fswatch -o $(SRC_DIR) $(ORDER) assets | while read; do make build; done

import_assets: $(OUTPUT)
	@TIC_CMD="load $(OUTPUT) &"; \
	for t in $(ASSET_TYPES); do \
		for f in $(ASSETS_DIR)/$$t/*.png; do \
			[ -e "$$f" ] || continue; \
			echo "==> Importing $$f as $$t..."; \
			TIC_CMD="$${TIC_CMD} & import $$t $$f"; \
		done; \
	done; \
	TIC_CMD="$$TIC_CMD save & exit"; \
	echo $$TIC_CMD; \
	tic80 --cli --skip --fs=. --cmd="$$TIC_CMD"

# export helper function
define f_export_asset_awk
	cat $(2) | awk '/-- <$(1)>/,/<\/$(1)>/' >> $(3)
endef

lint:
	@echo "==> Merging..."
	@rm -f $(LINT_TMP_LUA) $(LINT_TMP_MAP)
	@touch $(LINT_TMP_LUA)
	@line=1; \
	while IFS= read -r f || [ -n "$$f" ]; do \
	    f=$$(printf '%s' "$$f" | tr -d '\r'); \
	    [ -z "$$f" ] && continue; \
	    before=$$(wc -l < $(LINT_TMP_LUA)); \
	    cat "$(SRC_DIR)/$$f" >> $(LINT_TMP_LUA); \
	    printf '\n' >> $(LINT_TMP_LUA); \
	    after=$$(wc -l < $(LINT_TMP_LUA)); \
	    linecount=$$((after - before)); \
	    echo "$$line $$linecount $(SRC_DIR)/$$f" >> $(LINT_TMP_MAP); \
	    line=$$((line + linecount)); \
	done < $(ORDER)
	@echo "==> luacheck..."
	@LINT_OUTPUT=$$(luacheck --no-max-line-length $(LINT_TMP_LUA) 2>&1 | awk -v map=$(LINT_TMP_MAP) ' \
	BEGIN { \
	    NR_map = 0; \
	    while ((getline line < map) > 0) { \
	        n = split(line, a, " "); \
	        start[NR_map] = a[1]+0; \
	        count[NR_map] = a[2]+0; \
	        fname[NR_map] = a[3]; \
	        NR_map++; \
	    } \
	} \
	/^[^:]+:[0-9]+:[0-9]+:/ { \
	    colon1 = index($$0, ":"); \
	    rest1  = substr($$0, colon1+1); \
	    colon2 = index(rest1, ":"); \
	    absline = substr(rest1, 1, colon2-1) + 0; \
	    rest2  = substr(rest1, colon2+1); \
	    colon3 = index(rest2, ":"); \
	    col    = substr(rest2, 1, colon3-1); \
	    rest   = substr(rest2, colon3); \
	    found  = 0; \
	    for (i = 0; i < NR_map; i++) { \
	        end_line = start[i] + count[i] -1; \
	        if (absline >= start[i] && absline <= end_line) { \
	            relline = absline - start[i] + 1; \
	            print fname[i] ":" relline ":" col ":" rest; \
	            found = 1; \
	            break; \
	        } \
	    } \
	    if (!found) print $$0; \
	    next; \
	} \
	{ print } \
	'); \
	echo "$$LINT_OUTPUT"; \
	NUM_ISSUES=$$(echo "$$LINT_OUTPUT" | grep -cE "^[^:]+:[0-9]+:[0-9]+:"); \
	if [ "$$NUM_ISSUES" -gt 0 ]; then \
	    echo "Total: $$NUM_ISSUES issue(s) found, commit aborted."; \
	    exit 1; \
	else \
	    echo "Checking /tmp/_lint_combined.lua                  OK"; \
	    echo "Total: 0 warnings / 0 errors in 1 file"; \
	fi
	@rm -f $(LINT_TMP_LUA) $(LINT_TMP_MAP)

export_assets:
# $(OUTPUT) would be a circular dependency
	@test -e $(OUTPUT)
	@echo "==> Exporting TIC-80 asset sections"
	@mkdir -p inc/meta
	@echo -n '' > $(ASSETS_LUA)
	@$(call f_export_asset_awk,PALETTE,$(OUTPUT),$(ASSETS_LUA))
	@$(call f_export_asset_awk,TILES,$(OUTPUT),$(ASSETS_LUA))
	@$(call f_export_asset_awk,SPRITES,$(OUTPUT),$(ASSETS_LUA))
	@$(call f_export_asset_awk,MAP,$(OUTPUT),$(ASSETS_LUA))
	@$(call f_export_asset_awk,SFX,$(OUTPUT),$(ASSETS_LUA))
	@$(call f_export_asset_awk,WAVES,$(OUTPUT),$(ASSETS_LUA))

clean:
	@rm -f $(PROJECT)-*.tic $(PROJECT)-*.html.zip $(OUTPUT)
	@echo "==> Cleaned build artifacts"

# CI/CD Targets
ci-version:
	@VERSION=$$(sed -n "s/^-- version: //p" inc/meta/meta.header.lua | head -n 1 | tr -d "[:space:]"); \
	BRANCH=$${CI_COMMIT_BRANCH:-$${WOODPECKER_BRANCH}}; \
	BRANCH=$$(echo "$$BRANCH" | tr '/' '-'); \
	if [ "$$BRANCH" != "main" ] && [ "$$BRANCH" != "master" ] && [ -n "$$BRANCH" ]; then \
		VERSION=dev-$$VERSION-$$BRANCH; \
	fi; \
	echo "VERSION is: $$VERSION"; \
	echo $$VERSION > $(VERSION_FILE)

ci-export:
	@VERSION=$$(cat $(VERSION_FILE)); \
	echo "==> Building and exporting version $$VERSION"; \
	$(MAKE) export VERSION=$$VERSION

ci-upload:
	@VERSION=$$(cat $(VERSION_FILE)); \
	echo "==> Uploading artifacts for version $$VERSION"; \
	ls -lh $(PROJECT)-$$VERSION.* $(PROJECT).tic $(PROJECT).html.zip 2>/dev/null || true; \
	cp $(PROJECT).lua $(PROJECT)-$$VERSION.lua; \
	FILE_LUA=$(PROJECT)-$$VERSION.lua; \
	FILE_TIC=$(PROJECT)-$$VERSION.tic; \
	FILE_HTML_ZIP=$(PROJECT)-$$VERSION.html.zip; \
	SCP_TARGET="$(DROPAREA_USER)@$(DROPAREA_HOST):$(DROPAREA_TARGET_PATH)/"; \
	sshpass -p "$(DROPAREA_SSH_PASSWORD)" scp -o StrictHostKeyChecking=no -P $(DROPAREA_PORT) $$FILE_LUA $$FILE_TIC $$FILE_HTML_ZIP $$SCP_TARGET

ci-update:
	@VERSION=$$(cat $(VERSION_FILE)); \
	echo "==> Triggering update for version $$VERSION"; \
	curl "$(UPDATE_SERVER)/update?secret=$(UPDATE_SECRET)&name=$(PROJECT)&platform=tic80&version=$$VERSION"

install_precommit_hook:
	@echo "Installing Git pre-commit hook (lint check)..."
	@mkdir -p .git/hooks
	@printf '#!/bin/bash\n' > .git/hooks/pre-commit
	@printf 'echo "Running lint before commit..."\n' >> .git/hooks/pre-commit
	@printf 'make lint\n' >> .git/hooks/pre-commit
	@printf 'if [ $$? -ne 0 ]; then\n' >> .git/hooks/pre-commit
	@printf '    echo "Lint failed! Commit aborted."\n' >> .git/hooks/pre-commit
	@printf '    exit 1\n' >> .git/hooks/pre-commit
	@printf 'fi\n' >> .git/hooks/pre-commit
	@chmod +x .git/hooks/pre-commit
	@echo "Pre-commit hook installed successfully."

docs: build
	@echo "==> Checking for ldoc..."
	@if ! command -v ldoc &> /dev/null; then \
		echo "ldoc not found, attempting to install with luarocks..."; \
		if command -v luarocks &> /dev/null; then \
			luarocks install ldoc; \
		else \
			echo "Error: luarocks not found. Please install luarocks and then ldoc manually."; \
			exit 1; \
		fi; \
	fi
	@echo "==> Running ldoc..."
	@ldoc ${OUTPUT} -d docs
	@echo "==> Documentation generated."

.PHONY: all build export watch import_assets export_assets clean lint ci-version ci-export ci-upload ci-update install_precommit_hook docs

#-- <WAVES>
#-- 000:224578acdeeeeddcba95434567653100
#-- </WAVES>
#
#-- <SFX>
#-- 000:000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000500000000000
#-- </SFX>