From 2a9550709c007d530aae506a5f95bd703f6f7803 Mon Sep 17 00:00:00 2001
From: San Jacobs
Date: Sat, 26 Aug 2023 22:32:37 +0200
Subject: The start of ICS import

---
 src/main.odin |  2 ++
 src/time.odin | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+)

diff --git a/src/main.odin b/src/main.odin
index bcbaeec..729715b 100644
--- a/src/main.odin
+++ b/src/main.odin
@@ -13,6 +13,8 @@ main :: proc() {
 	//       for cache reasons, and to simplify the process of
 	//       adding new Workdays to the array.
 
+	_, _ = importICS("res/test.ics")
+
 	workdays: [dynamic]^Workday
 	resize(&workdays, 3)
 
diff --git a/src/time.odin b/src/time.odin
index 44c810a..f355e98 100644
--- a/src/time.odin
+++ b/src/time.odin
@@ -2,6 +2,7 @@ package main
 
 import math "core:math"
 import "core:fmt"
+import "core:os"
 import "core:strings"
 import "core:strconv"
 import "core:slice"
@@ -366,6 +367,45 @@ upvalue :: proc(input_block: ^Timeblock, value: f32, reason: string) {
 	}
 }
 
+importICS :: proc(path: string) -> ([dynamic]Timeblock, bool) {
+	output: [dynamic]Timeblock
+
+	raw, ok := os.read_entire_file_from_filename(path)
+	content := string(raw)
+
+	if !ok {
+		// TODO: Actually check the content to see if it is an ICS file.
+		fmt.eprintf("ERROR: No file found at: \"%v\"", path)
+		return output, false
+	}
+
+	for line in strings.split_lines_iterator(&content) {
+		if line[0:7]=="DTSTART" {
+			fmt.println(len(line))
+			date_start : int
+
+			for i := len(line)-1 ; i>0 ; i-=1 {
+				fmt.println(rune(line[i]))
+			}
+
+			// grab the timestamp from the end of the line, and set start to it
+			fmt.println("Found a DTSTART!")
+			fmt.println(line)
+		}
+		if line[0:5]=="DTEND" {
+			// grab the timestamp from the end of the line, and set end to it
+			fmt.println("Found a DTEND!")
+			fmt.println(line)
+		}
+		if line=="END:VEVENT" {
+			fmt.println(line)
+			//append(output, _)
+		}
+	}
+	return output, true
+}
+
+
 //
 // --- BASIC OPERATIONS ---
 //
-- 
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