GENERATE_POST := engine/generate-post.sh
GENERATE_CUT_POST := engine/generate-cut-post.sh
GENERATE_PAGES := engine/generate-pages.sh

# Depends
CONFIG := config
TEMPLATE_DIR := template
TEMPLATE_POST := $(TEMPLATE_DIR)/post.html
TEMPLATE_PAGE := $(TEMPLATE_DIR)/page.html
TEMPLATE_POST_ON_PAGE := $(TEMPLATE_DIR)/post-on-page.html

# Config
# For build
BUILT_DIR := built
POSTS_BDIR := $(BUILT_DIR)/posts
CUT_POSTS_BDIR := $(BUILT_DIR)/cut_posts
PAGES_BDIR := $(BUILT_DIR)/pages
POSTS_DIR := posts

POSTS := $(notdir $(wildcard $(POSTS_DIR)/*))
FINAL_POSTS := $(patsubst %,%.html,$(basename $(POSTS)))
FINAL_CUT_POSTS := $(patsubst %,%.html.cut,$(basename $(POSTS)))

# start )-------
CUT_POSTS := $(shell ls -t $(POSTS_DIR))
CUT_POSTS := $(addprefix $(CUT_POSTS_BDIR)/,$(CUT_POSTS))
CUT_POSTS := $(addsuffix .html.cut,$(CUT_POSTS))
# end   )-------

# For move
BLOG_ROOT := ko
POSTS_ROOT := $(BLOG_ROOT)/post/

# For generate pages
NUMBER_POSTS_ON_PAGE := 10
PAGES_NOT_DIR := $(shell echo $(POSTS) |\
        awk '{\
                a = ARGC / $(NUMBER_POSTS_ON_PAGE);\
                b = ARGC % $(NUMBER_POSTS_ON_PAGE);\
                if(b != 0) { a = a + 1; }\
                print "index.html";\
                for(i = 1; i < a; i++) { print i".html"; }\
            }')
PAGES := $(addprefix $(PAGES_BDIR)/,$(PAGES_NOT_DIR))


vpath %.html $(POSTS_BDIR)
vpath %.html.cut $(CUT_POSTS_BDIR)
vpath % $(POSTS_DIR)

.PHONY: all generate-posts make-built-dirs install generate-pages clean

all: generate-posts generate-pages

generate-pages: $(PAGES)
$(PAGES): $(FINAL_CUT_POSTS)
    $(GENERATE_PAGES) $(PAGES_BDIR) $(TEMPLATE_PAGE) $(CUT_POSTS)

generate-posts: make-built-dirs $(FINAL_POSTS)
make-built-dirs: $(BUILT_DIR) $(POSTS_BDIR) $(CUT_POSTS_BDIR) $(PAGES_BDIR)

$(FINAL_POSTS): %.html: %
    $(GENERATE_POST) $^ $(POSTS_BDIR) $(TEMPLATE_POST)

$(FINAL_CUT_POSTS): %.html.cut: %
    $(GENERATE_CUT_POST) $^ $(CUT_POSTS_BDIR) $(TEMPLATE_POST_ON_PAGE) 10


$(BUILT_DIR) $(POSTS_BDIR) $(CUT_POSTS_BDIR) $(PAGES_BDIR):
    mkdir $@

install:
    rm -rf $(BLOG_ROOT)/*
    mkdir $(POSTS_ROOT)
    cp $(POSTS_BDIR)/* $(POSTS_ROOT)
    cp $(PAGES_BDIR)/* $(BLOG_ROOT)

clean:
    rm -rf $(BUILT_DIR)