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recap_island/fundamentals/quotes.c

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+#include "village.h"
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <strings.h>
+#include <stdio.h>
+
+char *get_quote(const struct villager *village, unsigned int population, char *name){
+    
+    if (!village || population <= 0) return NULL;
+    
+   unsigned int index = 0;
+    while(index < population){
+        
+        if(!strcmp(village[index].name, name)) 
+            return village[index].favorite_quote;
+        
+        index ++;
+    }
+
+    //if(index == population) return NULL;
+    
+    return NULL;
+}
+
+int list_quotes(const char *filename, const struct villager *village, unsigned int population){
+    
+    if(!filename || !village) return -1;
+    
+    FILE *file = fopen(filename, "w");
+    if(!file) return -2;
+
+    unsigned int index = 0;
+    while(index < population){
+        
+        fprintf(file, "%s\n", village[index].favorite_quote);
+        index ++;
+    }
+
+    fclose(file);
+
+    return 0;
+
+
+}
+
+char *second_longest_quote(const char *filename){
+
+    if(!filename) return NULL;
+    
+    FILE *file = fopen(filename, "r");
+    if(!file)return NULL;
+
+    //utiliser getline
+    //utiliser strcmp() //comparaison entre deux str
+
+    //char *max_line = malloc(sizeof(char));
+    //char *second_line = malloc(sizeof(char));
+    
+    char *max_line = NULL;
+    char *sc_line = NULL;
+    char *tmp_line = NULL;
+
+    size_t index = 0;
+    ssize_t len_max = 0;
+    ssize_t len_sec = 0;
+    ssize_t len_tmp = 0;
+
+    //char *c = fgets(char *restrict s, int n, FILE *restrict stream);
+    //lecture fichier
+    while((len_tmp = getline(&tmp_line, &index, file)) != -1){ // si la ligne est plus grande que max_line
+         
+        if(len_tmp > len_max){
+            
+            len_sec = len_max;
+            len_max = len_tmp;
+
+            free(sc_line);
+
+            sc_line = max_line;
+            max_line = strdup(tmp_line);
+        }
+
+        else if (len_tmp > len_sec){
+            
+            len_sec = len_tmp;
+            free(sc_line);
+            sc_line = strdup(tmp_line);
+        }
+
+
+    }
+    free(tmp_line);
+    free(max_line);
+    fclose(file);
+    return sc_line;
+}
+/*
+int main(void)
+{
+    struct villager village[2] = {
+        {
+            .name = "Tom Nook",
+            .age = 99,
+            .job = SELLER,
+            .favorite_quote = "It's 42 bells",
+        },
+        {
+            .name = "Marie",
+            .age = 23,
+            .job = WORKER,
+            .favorite_quote = "It's so expensive!",
+        },
+    };
+    unsigned int population = 2;
+    
+    char *quote = get_quote(village, population, "Tom Nook");
+    printf("- %s\n", quote);
+
+    quote = get_quote(village, population, "Marie");
+    printf("- %s\n", quote);
+
+    quote = get_quote(village, population, "TC");
+    printf("%p\n", quote);
+
+    int err = list_quotes("/tmp/list_quotes", village, population);
+    printf("%d\n", err);
+
+    err = list_quotes(NULL, village, population);
+    printf("%d\n", err);
+
+
+    printf("the last\n");
+    quote = second_longest_quote("/tmp/list_quotes");
+    printf("%s\n", quote);
+    free(quote);
+
+    quote = second_longest_quote("/");
+    printf("%p\n", quote);
+
+    free(quote);
+
+}*/