package main
import "../lib/oui"

import "core:fmt"
import "core:math"
import "core:slice"
import "base:runtime"
import "core:strings"
import rl "vendor:raylib"

UBUNTU_MONO := #load("../res/UbuntuMono-Regular.ttf")

font : rl.Font
big_font : rl.Font
small_font : rl.Font

FRACT_MIN : f32 = 0.0
FRACT_MAX : f32 = 1.0

dayrate : f64 = 3500

c0 : ^oui.Context

main :: proc() {

	// TODO: Replace the dynamic array of Workday-pointers with
	//       an actual array of Workdays, plus a length variable
	//       for cache reasons, and to simplify the process of
	//       adding new Workdays to the array.

	workdays : [dynamic]Workday
	//resize(&workdays, 3)
	the_big_sum : f64 = 0

	{ // No need to keep this array in memory forever
		c, _ := importICS("res/test.ics")

		for thing, i in c {
			fmt.println("\n\nAdding workday nr", i, "\n", toString(thing), "\n")
			append(&workdays, new_workday({00, 00, 1, 1, 1850},
										  thing.start,
										  thing.end,
										  thing.end))
			for each_block in workdays[i].blocks {
				the_big_sum += f64(each_block.value) * (dayrate/7.5) * f64(hourcount(each_block))
			}
		}
	}


	/*workday0: = new_workday({10, 22, 3, 5, 2023},
	                        {00, 08, 4, 5, 2023},
	                        {00, 22, 4, 5, 2023},
	                        {30, 21, 4, 5, 2023})
	workdays[0] = &workday0

	workday1: = new_workday(workday0.wrap,
	                        {00, 08, 5, 5, 2023},
	                        {30, 15, 5, 5, 2023},
	                        {30, 16, 5, 5, 2023})
	workdays[1] = &workday1

	workday2: = new_workday(workday1.wrap,
	                        {00, 12, 6, 5, 2023},
	                        {15, 17, 6, 5, 2023},
	                        {00, 17, 6, 5, 2023})
	workdays[2] = &workday2
	*/

	slice.sort_by(workdays[:], lessWorkday)

	//call_text: cstring = "00:00"
	call_text: = make([]byte, 6)
	defer delete(call_text)
	call_text[len(call_text)-1] = 0
	//wrap_text: cstring = "00:00"
	wrap_text: = make([]byte, 6)
	defer delete(wrap_text)
	wrap_text[len(wrap_text)-1] = 0
	
	date_text: = make([]byte, len(toString(workdays[0].call))+1 )
	defer delete(date_text)
	wrap_text[len(wrap_text)-1] = 0


	total_sum: cstring = f64_to_cstring(the_big_sum)
	defer delete(total_sum)

	inc_soc: cstring = f64_to_cstring(the_big_sum*1.26)
	defer delete(inc_soc)

	text_height: f32


	using rl
	width: i32 = 900
	height: i32 = 500

	InitWindow(width, height, "satscalc")
	defer CloseWindow()

	SetTargetFPS(60)
	SetWindowState({.WINDOW_RESIZABLE})
	SetWindowMinSize(width, height)

	// Loading fonts - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	small_font = LoadFontFromMemory(".ttf", raw_data(UBUNTU_MONO), i32(len(UBUNTU_MONO)), 14, nil, 0)
	font = LoadFontFromMemory(".ttf", raw_data(UBUNTU_MONO), i32(len(UBUNTU_MONO)),       18, nil, 0)
	big_font = LoadFontFromMemory(".ttf", raw_data(UBUNTU_MONO), i32(len(UBUNTU_MONO)),   24, nil, 0)
	defer UnloadFont(big_font)
	defer UnloadFont(font)
	defer UnloadFont(small_font)
	
	// oui stuff
	
	c0 = new(oui.Context)
	defer free(c0)
	oui.context_init(c0, 2048, 2048 * 8)
	defer oui.context_destroy(c0)
	
	// Setting up the timelines

	
	for &day, f in &workdays {
		beginning: Moment = {0, 0, day.call.day, day.call.month, day.call.year}
		
		fmt.println("\nNew day!")
		
		for each_block, i in day.blocks {
			if i == day.total_timeblocks do break
			
			start := daycount(diff(beginning, each_block.start))
			end := daycount(diff(beginning, each_block.end))
			
			day.fractions[i].start = start
			day.fractions[i].end = end
			
			if start < FRACT_MIN do FRACT_MIN = start
			if end   > FRACT_MAX do FRACT_MAX = end
			
			fmt.println(day.fractions[i])
		}
		if f == 0 {
			// First time through we set the normalization anchors to something we know is real
			FRACT_MAX = workdays[0].fractions[0].start
			FRACT_MIN = FRACT_MAX
		}
	}

	for !WindowShouldClose() { // MAIN LOOP ---- MAIN LOOP ---- MAIN LOOP ---- MAIN LOOP

		free_all(context.temp_allocator)

		if IsWindowResized() {
			height = GetScreenHeight()
			width = GetScreenWidth()
			fmt.println("Resized to:", width, 'x', height)
		}
		
		pre_sos_price : f64 = 0
		
		for each_day in workdays {
			pre_sos_price += f64(each_day.price)
		}
		
		post_sos_price : f64 = pre_sos_price * 1.26
		
		// TODO: Find a good way to calculate the size and location
		//       of all the timeblocks in every day.
		//       
		//       I know I want them to scale with the window, and
		//       that the width of them should be normalized.
		//       If you add a day that lasts until 4 AM the morning
		//       after, all the other days should scale down to keep
		//       the vertical alignment of time accurate
		//       
		// TODO: Hovering over a timeblock should make it pulse softly
		//       clicking will put a white border around the timeblock,
		//       and display information about the block in the
		//       bottom left of the screen.
			
		mousePosition: = rl.GetMousePosition()
		oui.set_cursor(c0, int(mousePosition.x), int(mousePosition.y))
		if rl.IsMouseButtonPressed(rl.MouseButton(0))  do oui.set_button(c0, .Left, true)
		if rl.IsMouseButtonReleased(rl.MouseButton(0)) do oui.set_button(c0, .Left, false)
		
		// DRAW
		// ------------------------------------------
		BeginDrawing()
			
			ClearBackground(theme.background)
			
when true {
			// hotloop
			oui.begin_layout(c0)
				
				
				master_container := panel()
					master_container.id = oui.push_id(c0, "big_mr_boss_man") // Make ID for master thing just because.
					                                                         // Does not need to be freed because master.
					master_container.layout = .Absolute
					master_container.sort_children = true
					master_container.layout_size = {int(GetScreenWidth()), int(GetScreenHeight())}
				
				{
				top_bar := panel_line(master_container, theme.background_bar, 30)
					top_bar.id = oui.push_id(c0, "top_bar") // Make ID for anything that will have children.
					defer oui.pop_id(c0)                    // They must be pop'ed before the next equal-in-hiarchy item
					top_bar.layout_margin = 10
					
					oui.item_insert(top_bar, label("Date", font, sizings.date, .Center))
					oui.item_insert(top_bar, label("Calltime", font, sizings.call, .Center))
					
					top_bar.layout_cut_children = .Right
					oui.item_insert(top_bar, label("Price", font, sizings.price, .Center))
					oui.item_insert(top_bar, label("Wrap", font, sizings.wrap, .Center))
					
					top_bar.layout_cut_children = .Fill
					oui.item_insert(top_bar, label("Timeline", font, 0, .Center))
				}
				
				{
				bottom_bar := panel(theme.background_bar)
					bottom_bar.id = oui.push_id(c0, "bottom_bar")
					defer oui.pop_id(c0)
				    bottom_bar.layout_cut_children = .Left
					master_container.layout_cut_children = .Bottom
					bottom_bar.z_index = 10 // Makes this render over/after the middle section
					bottom_bar.layout_size.y = 50
					bottom_bar.layout_margin = 10 // Spacing from edges
					bottom_bar.layout_cut_gap = 5 // Spacing between children
					oui.item_insert(master_container, bottom_bar)
						
					price_reason := label("Reason for price of highlighted timeblock", font, 300,)
						bottom_bar.layout_cut_children = .Left
						oui.item_insert(bottom_bar, price_reason)
					
					totals := panel(theme.background_bar)
						totals.layout_cut_children = .Top
						totals.layout_size.x = 50
						bottom_bar.layout_cut_children = .Right
						oui.item_insert(bottom_bar, totals)
					
						pre_sos_price_label := label(fmt.tprintf("%.2f Kr", pre_sos_price), small_font, 0, .Right)
							pre_sos_price_label.layout_size.y = 11
							oui.item_insert(totals, pre_sos_price_label)
						
						post_sos_price_label := label(fmt.tprintf("%.2f Kr", post_sos_price), big_font, 300, .Right)
							post_sos_price_label.layout_size.y = 27
							oui.item_insert(totals, post_sos_price_label)
				}
				
				{
				middle_section := panel(theme.background)
					middle_section.id = oui.push_id(c0, "middle_section")
					defer oui.pop_id(c0)
					middle_section.layout_margin = 10 // Spacing from edges
					middle_section.layout_cut_gap = sizings.inter_timeline // Spacing between children
					master_container.layout_cut_children = .Fill
					oui.item_insert(master_container, middle_section)
					
					
					// - - - - WORKDAYS - - - -
					
					for &day, i in &workdays {
						
						line := panel_line(middle_section, theme.background)
						line.layout_cut_children = .Left
						line.layout_cut_gap = 0
						line.layout_margin = 0
						line.layout_size.y = sizings.timeline
						oui.item_insert(line, label(dayprint(day.call), font, sizings.date, .Center))
						oui.item_insert(line, label(clockprint(day.call), font, sizings.call, .Center))
						
						line.layout_cut_children = .Right
						oui.item_insert(line, label(fmt.tprintf("%.2f Kr", day.price), font, sizings.price, .Center))
						oui.item_insert(line, label(clockprint(day.wrap), font, sizings.wrap, .Center))
						
						line.layout_cut_children = .Fill
						{
							a_timeline := oui.item_make(c0)
							a_timeline.layout = .Cut
							a_timeline.layout_cut_self = .Fill
    
							for i in 0..<day.total_timeblocks {
								child := oui.item_insert(a_timeline, button("b", 10))
								oui.set_range(child, day.fractions[i].start, day.fractions[i].end, .Horizontal)
							}
							
							oui.item_insert(line, a_timeline)
							
							//x_offset := i32(int(f32(width)*fracts.start) - int(f32(width)*FRACT_MIN))
			                
			                                 /*i32(rect.t),
			                                 i32(f32(width) * (fracts.end - fracts.start)+0.99),
			                                 i32(rect.b - rect.t),
			                                 color)*/
						}
					}
					new_workday := button("+", 100)
					middle_section.layout_cut_children = .Top
					oui.item_insert(middle_section, new_workday)
					if oui.is_clicked(c0, new_workday) do fmt.println("NEW WORKDAY!")
					
					
when false { // Theme and sizings editors
					// - - - - SIZINGS EDITOR - - - -
					{
						oui.item_insert(middle_section, label("Sizings Editor", big_font, 100, .Center))
						
						// To loop over the members of a struct you need to do this goofy shit:
						info := runtime.type_info_base(type_info_of(Sizings))
						st := info.variant.(runtime.Type_Info_Struct)
						root := uintptr(&sizings)
						for offset, i in st.offsets[:st.field_count] {
							
							line := panel_line(middle_section, theme.background, 25)
								line.id = oui.push_id(c0, fmt.tprintf("sizings_line_%d", i))
								defer oui.pop_id(c0)
								
								oui.item_insert(line, label(st.names[i], font, ))
								
								// To then access the member of the struct you're looping over
								// you need to do this shit:
								//               v----------------------v
								current_value := cast(^int) (root+offset)
								
								oui.item_insert(line, slider_int(fmt.tprintf("sizings-%d", i), fmt.tprintf("%d", current_value^), 300, current_value, 0, 200))
						}
						output_button := button("output sizings", 100)
						middle_section.layout_cut_children = .Top
						oui.item_insert(middle_section, output_button)
						if oui.is_clicked(c0, output_button) do fmt.printf("%#v", sizings)
					}
					
					
					// - - - - THEME EDITOR - - - -
					{
						oui.item_insert(middle_section, label("Theme Editor", big_font, 100, .Center))
						
						// To loop over the members of a struct you need to do this goofy shit:
						info := runtime.type_info_base(type_info_of(Theme))
						st := info.variant.(runtime.Type_Info_Struct)
						root := uintptr(&theme)
						for offset, i in st.offsets[:st.field_count] {
							
							line := panel_line(middle_section, theme.background, 25)
								line.layout_cut_gap = 10
								line.id = oui.push_id(c0, fmt.tprintf("line_%d", i))
								defer oui.pop_id(c0)
								
								oui.item_insert(line, label(st.names[i], font, ))
								
								// To then access the member of the struct you're looping over
								// you need to do this shit:
								//                  v------------------------v
								color_sliders(line, cast(^Color) (root+offset))
						}
						output_theme_button := button("output theme", 100)
						middle_section.layout_cut_children = .Top
						oui.item_insert(middle_section, output_theme_button)
						if oui.is_clicked(c0, output_theme_button) do fmt.printf("%#v", theme)
					}
}
					
				}
				
				
			oui.end_layout(c0)
				
				ui_draw(master_container)
				
			oui.process(c0)
			
} else {
			DrawTextEx(font, "Date", {20, 8}, f32(font.baseSize), 0, RAYWHITE);
			DrawTextEx(font, "Calltime", {105, 8}, f32(font.baseSize), 0, RAYWHITE);
			DrawTextEx(font, "Wraptime", {f32(width)-83, 8}, f32(font.baseSize), 0, RAYWHITE);
			
			for day, i in workdays {
				
				// TODO: The fractions held inside Workday-s needs to come in pairs,
				//       just like moments come as pairs in timeblocks.
				//       Because that will let us store both the beginning and ending
				//       of timeblocks, which is a simple way to take care of reading
				//       out-of-bounds and will make it possible to render lunch breaks
				//       
				//      (At least, given how lunch breaks are currently implemented,
				//       as holes in the workday)

				DrawRectangle(10, DAY_HEIGHT*i32(i+1)-4, width-20, DAY_HEIGHT-1, theme.background_bar)
				for block, j in day.blocks {
					if j == day.total_timeblocks do break
					block_color: = theme.price_100
					switch {
						case block.value > 2.1:
							block_color = theme.price_300
						case block.value > 1.6:
							block_color = theme.price_200
						case block.value > 1.1:
							block_color = theme.price_150
					}
					
					DrawRectangle(TIMELINE_START+i32(math.round(day.fractions[j].start*f32(width+TIMELINE_END-TIMELINE_START))),
					              DAY_HEIGHT*i32(i+1)-4,
					              i32(math.round(f32(width+TIMELINE_END-TIMELINE_START)*(day.fractions[j].end-day.fractions[j].start)+0.5)),
					              DAY_HEIGHT-1,
					              block_color)
				}
				
				copy(call_text, clockprint(day.call))
				copy(wrap_text, clockprint(day.wrap))
				copy(date_text, toString(day.call))
				
				text_height := math.round(f32(i+1)*DAY_HEIGHT+(DAY_HEIGHT-f32(font.baseSize))*0.25)
				
				DrawTextEx(font, cstring(&date_text[0]), {20, text_height}, f32(font.baseSize), 0, RAYWHITE);
				DrawTextEx(font, cstring(&wrap_text[0]), {f32(width)-70, text_height}, f32(font.baseSize), 0, RAYWHITE);
				
				if i == len(workdays)-1 {
					DrawTextEx(big_font, "+", {20, DAY_HEIGHT*f32(i+2)}, f32(big_font.baseSize), 0, RAYWHITE)
				}
			}
			
			DrawRectangle(0, height-50, width+10, 60, theme.background_bar)
			
			DrawTextEx(small_font,	total_sum,	{f32(width)-120, f32(height)-43}, f32(small_font.baseSize), 0, RAYWHITE);
			DrawTextEx(big_font,	inc_soc,	{f32(width)-120, f32(height)-29}, f32(big_font.baseSize), 0, RAYWHITE);
}
		EndDrawing()
	}
}